Burhani Media Solutions LLC is seeking a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will have expertise in developing and deploying smart contracts, decentralized applications (dApps), and full-stack blockchain solutions. If you have a strong background in blockchain development, smart contract programming, and full-stack web development, we want to hear from you!

• Design, develop, and deploy secure smart contracts using Solidity or Rust.
• Build and integrate decentralized applications (dApps) on blockchain platforms like Ethereum, Binance Smart Chain, or others.
• Develop and maintain backend services using Node.js, Python, or PHP.
• Create responsive and dynamic frontend interfaces using React, Next.js, Vue.js, or Angular.
• Work with Web3.js, Ethers.js, or other blockchain libraries for blockchain interactions.
• Implement blockchain security best practices to ensure smart contract integrity and protect against vulnerabilities.
• Optimize gas fees, transaction costs, and blockchain performance.
• Collaborate with the design and product teams to deliver seamless user experiences.
• Conduct code reviews, testing, and debugging to ensure high-quality production-ready code.

• Proven experience as a Full Stack Blockchain Developer.
• Strong proficiency in Solidity, Rust, or other smart contract languages.
• Hands-on experience with Ethereum, Polygon, Binance Smart Chain (BSC), or other blockchain networks.
• Proficiency in backend development (Node.js, Python, or PHP with Laravel).
• Strong knowledge of frontend frameworks like React.js, Next.js, Vue.js, or Angular.
• Experience with Web3.js, Ethers.js, or similar libraries.
• Familiarity with IPFS, The Graph, or Layer 2 solutions is a plus.
• Understanding of blockchain security best practices (reentrancy, front-running, etc.).
• Experience with smart contract audits is a plus.
• Strong problem-solving and communication skills.

• Prior experience working with DeFi, NFTs, or GameFi projects.
• Familiarity with Docker, Kubernetes, or cloud infrastructure.
• Experience with Hyperledger, Cosmos, or Polkadot ecosystems.

• Hourly rate: $25 - $40, based on experience and expertise.
• Flexible work hours.
• Opportunity to work on cutting-edge blockchain projects.

If you’re passionate about blockchain development and want to be part of a dynamic team, apply now! 🚀

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Coinbase is seeking experienced backend engineers to join our team to build out the next generation of crypto-forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe, operating real-time applications with high frequency, low latency updates, and managing the most secure infrastructure running in the cloud.

The Growth organization drives Coinbase’s mission of bringing the world onchain. By building and leveraging growth tools across multiple avenues, including referral and incentives programs, creating a world-class notifications system, building a dynamic, engaging, and accessible logged-out web experience, and optimizing our new user onboarding flow, we ensure that Coinbase is the easiest, safest, and fastest way to buy, hold, and trade Crypto assets, and ensure our new users are set up for success from their first interaction.

What you'll be doing:

• Build and run experiments to power the growth of Coinbase’s retail products.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have experience launching new products from 0 to 1
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built fintech, highly reliable and/or secure systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE04US

*Answers to crypto-related questions may be used to evaluate your onchain experience.

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At IMC, technology is not a department; it’s at the heart of everything we do. Developed in-house, our innovative software makes millions of trading decisions daily, and we win bymaking better and faster decisions than our competition.

IMC’s Zug-based C++ Crypto Execution development team works on software that sits directly in the latency-critical loop of our technology stack and touches every part of our organisation. From ensuring our connectivity to the market and handling massive amounts of data, to implementing complex trading algorithms and integrating advanced hardware solutions.

Your Core Responsibilities:

As a software engineer, you’ll work in multidisciplinary teams alongside other engineers as well as traders, researchers, and quants to deliver challenging projects, while taking ownership of the end-to-end product development – from requirements gathering to production. You’ll write reliable, high-performance software while balancing time to production with quality and testability. Advanced automated testing and daily deployments will allow you to achieve agile and incremental benefits. Within a complex landscape of varying systems and technologies, you’ll be constantly challenged to consider trade-offs between latency, throughput, simplicity, scalability and maintainability.

• Coding, developing, testing, deploying and maintaining applications and automations for Trading Teams and/or Hardware Developrment and Execution Teams.
• Working through internal client requests. Gathering details, requirements and feedback from a range of internal stakeholders in order to implement creative automation solutions using innovative coding practices.

Your Skills and Experience:

• Strong programming skills in C++. Experience in the latest versions of C++ is highly desirable
• Familiarity with Python – preferred
• Familiarity with Docker and Kubernetes
• Comfortable in Linux environments
• Experience as a team lead and/or mentoring more junior engieers
• Experience gathering business requirements, communicating with key stakeholders and delivering solutions quickly
• The ability to work on greenfield projects under minimal supervision and to take full ownership of the applications you build
• A high degree of flexibility and adaptability: willing and able to deal with uncertainty and ambiguity in a rapidly evolving environment
• Strong troubleshooting and diagnostic skills; ability to solve problems creatively and proactively
• Prior knowledge of trading / capital markets isnotrequired. Curiosity and a willingness to learn is.

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Who are we? FalconX is a pioneering team of operators, investors, and builders committed to revolutionizing institutional access to the crypto markets. Operating at the intersection of traditional finance and 
cutting-edge technology, FalconX addresses the industry's foremost challenges: Navigating the digital asset market can be complex and fragmented, with limited products and services that support trading strategies, structures, and liquidity found in conventional financial markets. As a comprehensive solution for all digital asset strategies from start to scale, FalconX operates as the connective tissue empowering clients with seamless navigation through the ever-
evolving cryptocurrency landscape. Senior Software Engineer (Platform) Job Summary: As a Software Engineer in Platform Engineering, you will play a crucial role in building internal tools and contributing to platform development. This hybrid role combines elements of DevOps, Application Security (AppSec), and Architecture to streamline the development process and improve efficiency. Key Responsibilities: Library and Module Development: - Design and develop abstract libraries and modules to streamline software development processes. - Create reusable images and scaffolding tools to support microservice applications, allowing developers to focus on configuration rather than infrastructure setup. Performance and Efficiency Improvement: - Analyze existing software components to identify areas for performance enhancement using tools like [specify tools if applicable]. - Implement optimizations to improve the efficiency and scalability of software systems. Internal Tooling and Automation: - Develop internal tools that allow developers to deploy environments with simple commands. - Abstract out reusable components from the codebase, making them part of the platform for developers to use as needed. - Standardize common libraries such as logging, observability (tracing), and profiling. - Ensure seamless integration with CI/CD pipelines using tools like Jenkins and GitHub Actions. Module Maintenance and Support: - Maintain and update libraries and modules to meet evolving business needs. - Provide support and documentation for other teams to effectively utilize these resources. Testing and Quality Assurance: - Write comprehensive test cases to ensure the reliability and quality of developed libraries. - Collaborate with QA teams to implement automated testing strategies using frameworks like [specify frameworks if applicable]. Collaboration and Communication: - Work closely with Principal Engineers, architects, and cross-functional teams to understand their requirements and provide tailored solutions. - Gather feedback from developers to continuously improve the "developer experience." Continuous Learning and Improvement: - Stay updated with the latest trends and advancements in software engineering and platform technologies. - Propose and implement innovative solutions to enhance platform capabilities. Qualifications: - Bachelor's degree in Computer Science, Software Engineering, or a related field. - Proven experience as a Software Engineer with a focus on platform engineering. - Strong proficiency in Python, Go, and JavaScript programming languages. - Experience in developing and maintaining software libraries and modules. - Excellent problem-solving skills and attention to detail. - Ability to write clean, maintainable, and well-documented code. - Proficient in writing and executing test cases. Preferred Qualifications: - Experience with version control systems like Git. - Familiarity with CI/CD pipelines and DevOps practices. - Knowledge of containerization technologies such as Docker and Kubernetes. - Experience in working with cloud platforms (e.g., AWS, Google Cloud, Azure). - Understanding of Linux systems. Notice at Collection and Privacy Policy Applicants located in California and/or applying to a role based in California, please refer to our Notice at Collection and Privacy Policy here.   Inclusivity Statement FalconX is committed to building a diverse, inclusive, equitable, and safe workspace for all people. Our roles are intended for people from all walks of life. We encourage all those interested in applying to our organization to submit an application regardless if you are missing some of the listed background requirements, skills, or experiences! As part of our commitment to inclusivity, FalconX would like to acknowledge that the EEOC survey has limited potential responses that you can select. For legal reasons, FalconX must use this language to align with federal requirements, however, we want to ensure that you are able to provide a response to our own voluntary survey questions about your identity that best aligns with your most true self. FalconX is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, or any other legally-recognized protected basis under federal, state, or local law. Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on FalconX. Please inform FalconX’s People team at email, if you need assistance with participating in the application process.

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We are developing a miniApp in Telegram for exchanging cryptocurrencies for fiat and vice versa. Our service ensures fast, convenient, and secure exchange with minimal fees.

We are currently looking for a Backend Developer (Spring Boot) to continue development and support the project.

What you'll be doing:

• Developing and maintaining the backend for the Telegram miniApp using Spring Boot.
• Integrating with TronGrid (receiving/sending USDT TRC-20).
• Developing and improving the admin panel (user management, orders, exchange rates).
• Creating REST API for the frontend (Vue.js) and integrating with the Telegram bot.
• Optimizing the PostgreSQL database, setting up caching in Redis.
• Implementing secure authentication (JWT, OAuth 2.0).
• Ensuring server stability and fault tolerance.

What we are looking for:

• At least 2 years of experience with Java + Spring Boot.
• Strong knowledge of REST API, PostgreSQL, Redis.
• Ability to work with Docker (basic level required).
• Understanding of authentication principles (JWT/OAuth 2.0).
• Experience integrating external APIs (e.g., payment gateways, crypto APIs).
• Knowledge of multithreading and transaction processing.
• Basic knowledge of RabbitMQ/Kafka (nice to have, but not required).
• Experience with fintech or crypto-related projects is a plus.

What we offer:

• Salary $2500-3000 per month.
• Remote, office, or hybrid work (Czech Republic).
• Flexible working hours (full/part-time, full-time preferred).
• Opportunities for growth in crypto-fintech.
• Long-term collaboration (with potential for salary increases based on performance).

How to apply?

Send your resume + code samples (GitHub, portfolio) to Telegram @xchangio_support or email email

Looking forward to working with you! 🚀

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Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 50 million transactions across the 300+ dApps we’ve served, we’re powering the future of onchain economies.

The Role: Innovating at the Intersection of AI and DeFi

We are assembling a world-class team to redefine on-chain analytics using AI Agents & Machine Learning. As a DevOps Engineer, you will build and optimize the AI & ML infrastructure, enabling real-time wallet activity analysis, ML-driven tagging, and PnL insights at scale. You’ll work with Kafka, Snowflake, AWS S3, and high-speed data pipelines to process over 10-15 billion rows of historical data and real-time streaming events, ensuring a scalable, secure, and efficient AI ecosystem.

This is a high-impact role at the core of our AI-driven crypto intelligence platform.

What Will You Be Doing?

Scalable AI & ML Infrastructure

• Design & optimize cloud-native architectures for AI & ML-driven analytics on DeFi transactions.
• Develop and maintain high-performance, distributed computing environments that process billions of on-chain and off-chain events.
• Deploy and manage ML models & AI agents efficiently in Kubernetes (K8s) and other containerized environments.

High-Speed Data Engineering

• Design real-time streaming pipelines using Kafka for high-frequency on-chain transaction ingestion.
• Optimize Snowflake queries & storage solutions to handle large-scale blockchain datasets efficiently.
• Implement ETL/ELT pipelines for structured & unstructured blockchain data aggregation.

Infrastructure Automation & Reliability

• Automate cloud infrastructure using Terraform, Pulumi, or CloudFormation for seamless scaling.
• Enhance security & performance with CI/CD best practices for AI model deployment.
• Implement observability, logging & monitoring with tools like Prometheus, Grafana, and Datadog.

ML & AI Model Deployment

• Streamline model deployment for AI agents that analyze blockchain wallet behavior.
• Build infrastructure to support model training, inference, and real-time decision-making.
• Optimize GPU workloads for AI-driven pattern recognition & risk analysis.

Collaboration Across Teams

• Work alongside AI engineers, blockchain developers, and data scientists to integrate AI-driven insights into DeFi tools.
• Optimize node infrastructure & RPC services for multi-chain DeFi interactions.
• Research and implement best practices in Web3 DevOps, cloud automation, and ML infrastructure.

Requirements:

Core Experience

• 5+ years of DevOps experience, specializing in AI/ML infrastructure & high-scale data pipelines.
• Expertise in AWS, GCP, or Azure, focusing on scalable, event-driven architectures.
• Experience handling Kafka queues, Snowflake databases, and massive-scale data processing.

DevOps & Infrastructure Skills

• CI/CD Automation using GitHub Actions, CircleCI, Jenkins, or ArgoCD.
• Kubernetes & Docker for managing AI workloads and high-performance model inference.
• Infrastructure-as-Code (IaC): Terraform, Pulumi, or CloudFormation.

Data Engineering & AI Model Ops

• Experience with Kafka, Snowflake, and S3 for real-time & historical data processing.
• ML Model Deployment: Knowledge of TensorFlow, PyTorch, or ONNX for AI-based wallet analytics.
• Strong Python & Bash scripting for automation and orchestration.

Security & Reliability

• Security-first mindset: Experience with IAM, firewall management, and Web3 security best practices.
• Observability & Monitoring using Prometheus, Grafana, Datadog, or OpenTelemetry.

Bonus Skills

• Experience with multi-chain blockchain infrastructure (Ethereum, Solana, L2s).
• Knowledge of DeFi protocols, smart contracts, and risk analytics.
• Experience with AI inference at scale (Ray, Triton, Hugging Face Transformers, etc.)

What We Offer:

• Flexible Working Hours: Enjoy autonomy over your schedule.
• Generous Vacation Policy: 25 days vacation per year plus public holidays
• Competitive Salary: With regular performance reviews.
• Token Allocation: Be rewarded with tokens as part of our compensation package.
• Growth Opportunities: Be part of an exciting new project with significant career growth potential.
• Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.
• Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.

At Biconomy, we believe in creating a diverse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.

WHO WE ARE: Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders.WHO YOU ARE: Sr. Software Engineer I, Tech Lead play a key role in the design, development/configuration, unit testing, installation, and ongoing maintenance of Zinnia software platforms. Zinnia Senior Software Engineers work with stakeholders to develop solutions and/or products that fulfill the needs of Zinnia’s internal stakeholders and clients. Those solutions and/or products help Zinnia and Zinnia clients to be more efficient and provide better service to end customers. Senior Software Engineer interacts directly with project managers and business stakeholders and may periodically interact directly with Zinnia’s clients. Senior Software Engineer will facilitate, lead, and enable junior team members by acting as a mentor for soft skills and/or technical subject matter experts. WHAT YOU’LL DO:

Work as part of a global, cross-functional team to develop innovative software for ZINNIA stakeholders. Contribute to projects by creating well-designed, customized, testable, efficient code for ZINNIA platforms. Assist our teams in providing ongoing support, troubleshooting, improvements, or custom enhancements to existing ZINNIA platforms. Flexibility to support the challenging development and delivery needs of ZINNIA Collaborate with our global teams, internal stakeholders, and customers. Act as a mentor and technology expert for team members and conduct technical reviews. Architect, Design, develop and validate various requirements for the ZINNIA platforms Ability to work in a fast-paced environment, recognize and react to changing business needs and effectively prioritize tasks Must be self-motivated and able to work both independently and in conjunction with team members and business units. Enthusiasm and flexibility to work on a variety of projects.

WHAT YOU’LL NEED:

7-11 years of experience in Backend technology - Java, J2EE, and Spring in the cloud environment (must have).  Experience in NoSQL databases, Event-driven architecture, and Domain-driven design Patience and perseverance to overcome challenges, solve problems, and learn new computer languages and techniques. Excellent work ethic. Ability to work and travel independently. Effective communication, interpersonal, and critical thinking skills. Effective troubleshooting skills. Ability to work as part of a cross-functional, global team.

Qualifications• Should have BTech / BE / MCA / MTech / ME or equivalent qualification from reputed institutes Preferred Skills:

Object Oriented Programming (OOPS) and design patterns Programming using Java 8/J2EE Competence and comfort using multiple frameworks Spring, Spring Boot SOA/Microservice Architecture Knowledge and experience with REST Git, Maven, Docker

WHAT’S IN IT FOR YOU? We’re looking for the best and brightest innovators in the industry to join our team. At Zinnia, you collaborate with smart, creative professionals dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website. We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.

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Job Description:

The main objective is to explore the innovation happening in Blockchain technologies and adapt them to business by designing, implementing, and supporting distributed products & Services, through analysis and development of use cases in relation to business solutions’ implementations.

· Design, research, develop, analyze and suggest new concepts as well as strategies.

· Engage stakeholders, clients and partners; internal and external teams to understand product vision, business use cases and design proof-of-concept (POC) and minimal viable products (MVP)

· Own feature implementations and create end-to-end solutions and utilizing libraries / code sources to be used throughout projects implementation

· Be accountable for implementing regulatory minded best practice and processes Interface with communities and contributors to collect and implement feedback across products.

· Develop and implement business services to Og Stack marketplace

· Test various block chain systems and lead technology departments for products,

· Align, understand the technology, and to be able to design and implement jointly core products

· Follow closely with Executive Chairman and Head of Innovation on ideas, discussions and workflows

· Conduct technical training programs, and involve internal Product Dev and Technical Leads

· Manage team members through the process of developing and maintaining solutions.

Education & Qualifications:

· Master’s degree in computer science,

· Bachelor Degree in Computer Engineering or Computer application

Experience:

· 4 - 10 Years employment Experience working with live projects that are being used by customers

· 2. Training skills with Software Development & Testing

· 3. Data, Information & Technology Architecture

System skills required:

· Experience with building smart contracts

· Data and system integration

· Experience with, JavaScript, Node.JS, Hyper ledger, Ethereum, Corda, Ripple, Indy

· Distributed file systems Security

· Regulatory minded development experience

· Skills set in; DevOps Technology, Docker, Kubernetes, GitLab, GitHub, Jenkins.

· Experience in building data blocking networks

· Implemented or contributing to open-source projects

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WHO WE ARE: Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders.WHO YOU ARE: A Java DevOps Engineer with 5+ years of experience playing a pivotal role in delivering high-quality software solutions. As a Java DevOps Engineer, you will be responsible for automating and streamlining the software development and deployment process, ensuring efficient and reliable delivery of our products. WHAT YOU’LL DO: 

DevOps Infrastructure:

Design, build, and maintain robust and scalable DevOps infrastructure, including CI/CD pipelines, source control systems, and deployment environments. Automate infrastructure provisioning and configuration management using tools like Ansible, Terraform, or Puppet. Collaborate with development teams to ensure smooth integration of DevOps practices into their workflows.

Java Development:

Contribute to the development and maintenance of Java-based applications, following best practices and coding standards. Work closely with development teams to understand their requirements and provide technical guidance. Participate in code reviews and ensure code quality.

Maven:

Utilize Maven for build automation, dependency management, and project management. Create Maven build scripts and configurations. Manage dependencies and resolve conflicts.

Docker and Containerization:

Manage containerized environments using tools like Kubernetes or Docker Swarm. Leverage Docker to containerize applications and simplify deployment. Optimize container images for performance and security.

CI/CD Pipelines:

Design and implement efficient CI/CD pipelines using tools like Jenkins, GitLab CI/CD, or CircleCI. Automate testing, code quality checks, and deployment processes. Ensure pipeline security and compliance with best practices.

AWS Services:

Utilize AWS services effectively for infrastructure provisioning, deployment, and management. Implement cloud-native architectures and best practices. Optimize cloud resources for cost-efficiency and performance.

Log Aggregation:

Analyze logs to identify and troubleshoot issues. Implement log aggregation and analysis tools (e.g., ELK Stack, Splunk) to monitor application and infrastructure health.

WHAT YOU’LL NEED:

Bachelor’s/Master's degree in Computer Science, IT Engineering, or a related field. 8+ years of experience as a Java developer or DevOps engineer. Strong programming skills in Java and at least one scripting language (e.g., Bash, Python, Groovy). Experience with DevOps tools and practices, including CI/CD pipelines, version control systems, and infrastructure automation. In-depth knowledge of Docker and containerization technologies. Experience with container orchestration platforms like Kubernetes or Docker Swarm. Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and cloud-native technologies. Good problem-solving and analytical skills. Strong communication and collaboration skills. 

Preferred Skills:

Experience with infrastructure as code (IaC) tools like Terraform or Ansible. Knowledge of monitoring and alerting tools (e.g., Prometheus, Grafana). Familiarity with configuration management tools like Ansible or Puppet.

WHAT’S IN IT FOR YOU? At Zinnia, you collaborate with smart, creative professionals who are dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website. We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.

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About Paxos  Today’s financial infrastructure is archaic, expensive, inefficient and risky — supporting a system that leaves out more people than it lets in. So we’re rebuilding it. We’re on a mission to open the world’s financial system to everyone by enabling the instant movement of any asset, any time, in a trustworthy way. For over a decade, we’ve built blockchain infrastructure that tokenizes, custodies, trades and settles assets for the world’s leading financial institutions, like PayPal, Venmo, Mastercard and Interactive Brokers.  About the team The Issuance Engineering team is responsible for building and maintaining the core infrastructure that powers Paxos’ issuance of tokenized assets. Our engineers are passionate about designing and implementing secure, scalable, and high-performance systems that ensure the seamless creation, management, and transfer of digital assets. We work closely with product, operations, and compliance teams to drive innovation in financial technology while maintaining the highest standards of reliability and security. About the role  As a Senior Software Engineer, Issuance at Paxos, you will play a pivotal role in designing, building, and optimizing software solutions that support the issuance of digital assets, including stablecoins and other tokenized financial instruments. You will leverage your expertise in distributed systems and modern software development practices to ensure the scalability, security, and efficiency of our platform.   What you’ll do 

Design, develop, and maintain mission-critical issuance systems that support tokenized assets across multiple blockchains. Collaborate with cross-functional teams including product, compliance, and infrastructure to define system architecture and technical requirements. Ensure the reliability, security, and scalability of our issuance services through best practices in software design, testing, and deployment. Optimize existing issuance infrastructure to enhance performance, reduce latency, and improve operational efficiency. Provide mentorship and technical guidance to junior engineers, fostering a culture of continuous learning and improvement. Stay informed about emerging trends in blockchain, distributed systems, and financial technology to drive innovation within the team. Participate in code reviews, architectural discussions, and technical decision-making processes.

About you

5+ years of software development experience, with proficiency in at least one of the following languages: Golang, Kotlin, Rust, Java, C++, Python. Strong computer science fundamentals, including data structures, algorithms, and distributed system design. Familiarity with cloud-native infrastructure and tools, such as Kubernetes, Docker, Kafka, and AWS services. Ability to write high-quality, maintainable, and well-documented code. Strong problem-solving skills and a keen ability to troubleshoot complex technical issues. Effective collaboration and communication skills, with the ability to work closely with cross-functional teams. Experience with blockchain technologies, smart contracts, or cryptographic principles is a plus. A passion for learning and applying new technologies to solve real-world problems.

Pay and benefits

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We are seeking a Lead Backend Engineer with a deep interest in DeFi and trading automation systems. The ideal candidate will be self-driven and have a proven track record in a leadership role within Web3. The ability to adapt to complex ideas, problem solve on the fly, and thrive in a fast paced startup environment is essential. You will play a crucial role in the project’s success by directing technical strategy, collaborating with founding team members, and proactively resolving backend system issues.

Our Tech Stack:

• Backend: Nest.js - Typescript
• Frontend: Next.js - Typescript
• Database: MongoDB
• Cloud platform: Digital Ocean / AWS
• Smart contracts: Solidity
• Additional: Git/GitHub, Docker, Ethers.js

Requirements:

• 5+ years of experience as a backend software engineer
• 2+ years developing applications on EVM-based blockchains
• 2+ years designing and engineering scalable Web APIs
• Experience and proficiency with Typescript / Node.js on server side
• Some familiarity with DevOps practices (docker, CI/CD, cloud platforms)
• Previous experience leading a cross functional team of 3 or more team members
• Strong written and verbal English communication skills

Nice to have:

• Smart contract development experience (EVM)
• Some frontend experience (Next.js, React)
• Experience building DeFi and user-facing trading applications
• Good understanding of Account Abstraction standards (ERC 4337 & 7579)
• Knowledge of intent-centric system architectures

Responsibilities:

• Continuously adapt and improve the product by shipping new features or improving current functionalities.
• Deploy scalable backend services and APIs.
• Troubleshoot technical issues to optimize performance.
• Conduct code reviews and ensure consistent product quality.
• Develop maintainable and well-documented code.
• Interact with a wide range of DeFi protocols, calling their smart contracts to extract specific data when necessary.
• Listen to token data via WebSockets, quoting tokens at varying rates, and using cron jobs to execute transactions at specified times or based on certain parameters for condition-driven trading.
• Collaborate and troubleshoot with partner protocols to identify the most effective ways to integrate their products or infrastructure.
• Be a project manager: establish priority driven plans for managing deadlines and key deliverables
• Communicate with the development team on a daily basis.
• Require that teammates provide clear and succinct updates to ensure tasks are completed on time and in alignment with development schedules.
• Deliberate with the founding team to effectively adapt high-level concepts into concrete development outcomes.

Who we are:

Hegemony Labs is an ambitious startup composed of DeFi natives, trend analysts, and technical experts. We are dedicated to delivering bleeding edge trading innovations for the betterment of Web3 at large. Funded and backed by notable VCs and angels.

What we are building:

Hedgemony is an intent-centric execution layer which blends multilayered aggregation services with AI-driven market insights to provide an enriched and unified on-chain experience. Our primary aim is to simplify DeFi interactions and empower traders with unmatched on-chain trading functionalities.

We deliver simultaneous asset swaps, multi faceted yield capture, copy trading, and hedging optionality through our infinitely customizable strategy agents. Users can configure agents to navigate DEXs, lending, yield-bearing protocols, and other derivatives synchronously via conditional triggers and adaptive logic. With one simple action, entire portfolios can be revamped, redelegated, and programmed to automatically rebalance in accordance to shifting market sentiments.

The protocol MVP is currently deployed on Arbitrum One, and currently working towards multi-chain expansion and integration for crosschain settlement compatibilities on Base, Monad, HyperEVM and beyond.

Additional Info:

• Website
• Docs

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Engineering@Easygo Easygo leads the world in crafting top-tier entertainment experiences. Within our engineering organization, we foster a continuous learning environment, constantly pushing the boundaries of large-scale software design and development. Our culture revolves around fostering growth, nurturing learning, and upholding excellence in engineering, ensuring we consistently set the benchmark for engineering mastery. Who are we? At Easygo we proudly stand as a prominent service provider to a powerhouse of brands within the iGaming industry, including Stake.com, Kick.com and Twist Gaming. Stake is the world's largest crypto casino, and leads the industry with a seamless online casino and sportsbook experience. Level up your online entertainment with Kick.com, the vibrant live-streaming platform, which connects millions of gamers and content creators worldwide. All alongside the innovative game design studio, Twist Gaming, which takes creativity to new heights by crafting cutting-edge and captivating games. Why join us? Are you a passionate and ambitious software engineer ready to dive into an environment that fosters innovation, continuous learning, and professional growth? We're seeking talented individuals who are eager to tackle complex problems, build scalable solutions, and collaborate with some of the finest engineers in the entertainment industry.

Complex Projects, Creative Solutions: Dive into intricate projects that challenge and push boundaries. Solve complex technical puzzles and craft scalable solutions. Accelerate Your Growth: Access mentorship, training, and hands-on experiences to level up your skills. Learn from industry experts and gain expertise in scaling software. Collaborate with Industry Leaders: Work alongside exceptional engineers, exchanging ideas and driving innovation forward through collaboration. Caring Culture, Career Development: We deeply care about your career. Our culture prioritizes your growth with tailored learning programs and mentorship. Embrace Challenges, Celebrate Success: Take on challenges, learn from failures, and celebrate achievements together. Shape the Future: Your contributions will shape the future of entertainment.

If you're passionate about growth, innovation, and working with the best, we'd love to have you on our team! Key Responsibilities:

Design and implement scalable, high-performance software solutions in alignment with project requirements and company standards. Optimize existing systems for performance, scalability, and reliability, identifying and resolving bottlenecks and inefficiencies. Actively engage in hands-on coding and development, ensuring code quality, scalability, and maintainability. Identify opportunities for improvement and take initiative in technical discussions Independently lead medium-sized projects or components from start to finish. Collaborate effectively with cross-functional teams, communicating technical concepts and project updates. Provide technical leadership, guiding and mentoring junior engineers in the team. Collaborate with stakeholders, product managers, and engineering teams to effectively communicate technical concepts.

Qualifications:

Bachelor's/Master's degree in Computer Science or equivalent practical experience. 4+ years of hands-on experience in software engineering, with a primary focus on Backend development and leaning toward Full-Stack Experience with Node.js, GraphQL, Docker, Cloud services (e.g., AWS, Azure, Google Cloud) and related technologies. Experience with Database technologies such as PostgreSQL, MySQL, Elasticsearch for data storage and management. Experience with Messaging systems such as NATS, Kafka, RabbitMQ, SQS, etc.. Experience with Monitoring and logging tools (e.g., Datadog) Strong understanding of code architecture and design principles. Excellent problem-solving skills and the ability to thrive in a fast-paced, dynamic environment. Positive attitude and eagerness to learn new technologies to grow as a full-stack engineer.

Preferred Qualifications:

Experience with Svelte + SvelteKit or other server-side rendering frameworks (e.g. React + NextJS, Vue + Nuxt, Quasar, etc) Proficiency in JavaScript fundamentals, Design Patterns, Subscriptions (WebSockets, Pub/Sub), TypeScript, GraphQL, Storybook and related technologies. Experience with CI/CD tools (e.g., AWS Code Pipeline, GitHub Actions) for automating the deployment process.

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About Vac

Vac builds public good protocols for the decentralized web. We do applied research based on which we build protocols, libraries and publications.

The role

We are seeking an experienced Distributed Systems Evaluation Engineer to join the Vac DST team. This role focuses on rigorously assessing the performance and reliability of IFT projects at scale. You’ll be responsible for designing and executing comprehensive evaluation strategies, leveraging both large-scale lab deployments and protocol behavior modeling scripts. Your expertise will be crucial in analyzing these complex distributed systems, automating intricate test scenarios, and providing in-depth insights into system behaviors.

Working closely with cross-functional teams, you’ll troubleshoot complex issues and translate technical data into actionable recommendations. Proficiency in containerization, cloud technologies, and distributed systems principles is essential.

This position offers the opportunity to make a significant impact on the robustness and scalability of IFT projects, contributing to the development of next-generation decentralized technologies.

Key responsibilities

• Design, implement, and maintain sophisticated tools for analyzing distributed systems at scale, ensuring robust and efficient testing processes.
• Orchestrate and automate large-scale deployments to rigorously validate the functionality, performance, and scalability of complex distributed systems.
• Identify, document, reproduce, and troubleshoot intricate issues in distributed environments, collaborating closely with IFT project teams to resolve challenges.
• Develop a comprehensive understanding of IFT project protocols and components to provide insightful analyses that drive improvements and inform decision-making.
• Conduct and interpret statistical analyses of system outputs, translating complex data into actionable insights for stakeholders.
• Create and maintain scripts that model protocol behavior, utilizing these models to validate and sanity-check large-scale deployment runs.
• Work with Docker, Kubernetes, and POSIX-like systems

You ideally will have

• Solid experience with scripting languages like Python.
• Experience with statistical analysis tools, like pandas, seaborn.
• Experience with systems programming languages like Nim, Go, Rust.
• Understanding of network behaviors (libp2p, gossipsub, p2p networks).
• Working knowledge of Docker, Kubernetes, and POSIX-like systems.
• Excellent written and conversational communication skills.
• Alignment with our core values and principles.

Bonus points

• Experience with off-the-shelf networking stacks such as libp2p.
• Experience in blockchain technology.
• Experience working for an open-source organization.

Hiring process

• Interview with our POps team
• Interview with team member from the Vac DST team
• Take home assignment & interview with team member from the Vac DST team
• Interview with Vac team lead

We are seeking a Senior Software Engineer to join our Stablecoin team, responsible for building platforms and infrastructure for Stablecoin issuance, growth, and utility. This team plays a crucial role in enhancing the stablecoin ecosystem at Coinbase, including developing a Rewards Orchestration System that offers rewards to both retail and institutional customers across various Coinbase product surfaces such as Retail, Exchange, Prime, Custody, and Neptune.

Team Overview:

The Stablecoin team comprises seven members, including two IC3s, one IC4, two IC5s, and one IC6, with three open headcounts. The new hire will have opportunities for both mentoring and being mentored. The team works closely with two sister teams focused on Stablecoins UX for Retail and adding new Stablecoins internationally.

Role Description:

As a Senior Software Engineer on the Stablecoin team, you will drive projects that create more utility around stablecoins. You will contribute to or build platforms for stablecoin issuance and growth, and you will be the Directly Responsible Individual (DRI) for your projects. Immediate projects include issuing Canadian and Singaporean stablecoins and deploying stablecoins on more chains across multiple products such as Retail, Exchange, Prime, and Custody.

What you’ll be doing (job duties):

• Develop new services to meet critical product and business needs using industry best practices.
• Architect and design scalable systems to solve novel problems.
• Define a long-term vision for maintaining and scaling our backend systems and teams.
• Collaborate with engineers, designers, product managers, and senior leadership to turn our vision into a quarterly roadmap.
• Serve as a technical lead and subject matter expert.
• Write high-quality, well-tested code to meet customer needs.

What we look for in you:

• Minimum 5 years of experience in software engineering.
• Experience designing, building, scaling, and maintaining production services, and knowledge of service-oriented architecture.
• Proficiency in writing high-quality, well-tested code.
• Passion for building an open financial system that brings the world together.
• Leadership skills to develop other engineers.

Nice to haves:

• Experience in rapid company growth (from startup to mid-size).
• Familiarity with growth experiments or A/B testing frameworks.
• Experience with Blockchain technology (e.g., Bitcoin, Ethereum).
• Experience decomposing a large monolith into microservices.
• Proficiency with Golang, Ruby, Docker, Rails, Postgres, MongoDB, or DynamoDB.
• Experience in building financial, high-reliability, or security systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE05CA

*Answers to crypto-related questions may be used to evaluate your onchain experience.

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Stablecoin Ecosystem team is looking for BE developers who will help in delivering a suite of international stablecoins. The role will be responsible for evaluating the APIs of external partners, integrating them with internal systems to enable operations of a stablecoin . The role will work with product, designers and tech leads to deliver different features.

What you'll be doing:

• Articulate a long term vision for maintaining and scaling our backend systems.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• You’ve built growth experiments or A/B tests.
• You have experience with Blockchains (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE04CA

*Answers to crypto-related questions may be used to evaluate your onchain experience.

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WHO WE ARE: Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders. WHO YOU ARE: Software Engineers play a key role in providing design, development/configuration, unit testing, and ongoing maintenance of Zinnia software platforms. WHAT YOU’LL DO: • Work as part of a Platform Support team in doing investigations Level 3 Support Zinnia Business and Client Operation Teams• This position will work the 5:00 PM to 2:00AM shift to provide support during CST hours.• Create well-designed, customized, testable, and efficient code for ZINNIA platforms.• Collaborate with our global teams, internal stakeholders, and customers.• Ability to work in a fast-paced environment, recognize and react to changing business needs and effectively prioritize tasks• Must be self-motivated and able to work both independently and in conjunction with team members and business units. Enthusiasm and flexibility to work on a variety of projects WHAT YOU’LL NEED:• Should have 5-7 years IT experience with not less than 4 years of strong expertise in Microsoft .NET technologies with end-to-end project life cycle experience using Agile / Kanban methodologies.• Proficient in SQL Server knowledge in designing and developing SQL queries. Mongo DB, NService Bus• Proficient in .Net framework• Expert in building Restful API• Must have experience in designing and developing products using various technologies – C#, React JS, Angular, and Java script• Should have good demonstrable experience in systems architecture and N-tier application development using Microsoft technical stack SQL server, TFS, Azure DevOps.• Knowledge of AWS Lamda functions, Containers/Micro Service architecture, Docker, Python and Java• AWS Practioner Certified preferred WHAT’S IN IT FOR YOU? We’re looking for the best and brightest innovators in the industry to join our team. At Zinnia, you collaborate with smart, creative professionals who are dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website. We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.

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Summary

Cryptio is seeking a Software Engineer passionate about building crypto, finance, and accounting reconciliation products.

You'll join our talented engineering team working on Cryptio's SaaS platform within the Accounting & Reconciliation squad. Your team will develop robust solutions for cost basis and PnL computations, maintain our automated reconciliation tool (AutoRec), and create a high-performance reporting pipeline that process large volumes of data.

Key technologies:

• Rust (with a focus on performance and scalability)

• TypeScript (key dependencies: Nest.js, Zod, Slonik)

• PostgreSQL

• Kubernetes on AWS, Docker, GitLab… (modern development stack)

What's special about this role?

This role represents a unique opportunity to solve complex accounting and financial challenges in the cryptocurrency space. You'll contribute to the development of critical features that help our clients navigate the intersection of traditional finance and digital assets, from implementing sophisticated cost basis computations to building automated reconciliation systems that can handle millions of transactions.

You’ll be part of a team responsible for creating robust solutions that not only process high volumes of financial data efficiently but also ensure regulatory compliance and audit readiness. These systems will help our clients maintain accurate financial records, generate comprehensive reports, and confidently manage their crypto assets while meeting all regulatory requirements.

Responsibilities

• Contribute to the development of core accounting and reconciliation features

• Write and ship production grade TypeScript / Rust code

• Document and test your code

• Work closely with product teams to ensure new features meet user needs

Requirements

• 5+ years of software engineering experience

• Deep knowledge of TypeScript

• Pro-efficient in Rust, ability to write and ship production-grade code

• Some experience with high-performance systems

• Some experience with OLAP databases (ClickHouse or similar)

• Strong background in database design and optimisation with PostgreSQL

• Experience with data-heavy products and system optimisation

• Exceptional communication skills, with both technical and non-technical stakeholders

• Impeccable spoken and written English

• Strong collaborative mindset - the ability to work effectively with others is essential for tackling complex features

• An analytical mindset, a passion for solving complex problems, and an interest in the crypto and fintech industry

Location

You can work from home 100% of the time, but you should be able to easily join one of our hubs from time to time. Our hubs are Paris, London, and New-York.

Interview Process

1. Talent Screen - 45 min

2. Technical Interview - 90 min

3. Team Interview - 45 min

4. Leadership Interview - 45 min

Benefits

✨ Fully-Remote / Hybrid – The choice is yours! 🌍🏡

🎉 25 Days Paid Holiday + Bank Holidays + Your Birthday Off 🎂

💰 4% Pension Contributions towards your future! 💼

🏥 Private Medical & Dental Insurance with Allianz! 🦷💊

👶 Attractive Maternity and Paternity Policies for your growing family 👨‍👩‍👧‍👦

💪 Gym Classes or Spa Treatments with ClassPass! 🧘‍♂️🧖‍♀️

💻 Apple MacBook Pro – The best tech at your fingertips! 💻✨

💵 $200 Workplace Budget to create your perfect home office! 🏠💼

📚 Training and Development Budget – Invest in yourself and grow! 🚀

Apply Now:

Summary

Cryptio is looking for a software engineer interested in working on finance / accounting related products.

You will join a team of talented engineers working on Cryptio’s core SaaS product. The mission of this team is to develop new features, maintain existing ones and deal with technical debt.

This is a high impact team shaping the future of back-office and reporting for businesses with intensive crypto use cases. Cryptio is a data heavy product, with performance and architectural challenges.

Key technologies:

• TypeScript (key dependencies: Nest.js, Zod, Slonik)

• PostgreSQL

• Kubernetes on AWS, Docker, GitLab… (modern development stack)

What's special about this role?

This role represents a unique opportunity to solve complex accounting and financial challenges in the cryptocurrency space. You'll contribute to the development of critical features that help our clients navigate the intersection of traditional finance and digital assets, from implementing sophisticated cost basis computations to building automated reconciliation systems that can handle millions of transactions.

Responsibilities

• Write production-grade TypeScript code

• Implement new features and maintain existing ones

• Document and test your code

• Work closely with product teams to ensure new features meet user needs

Requirements

• 5+ years of experience writing software

• Strong knowledge of TypeScript

• Comfortable working with PostgreSQL (or another relational database)

• Comfortable working with the Node.js ecosystem

• Impeccable spoken and written English

• Excellent communication, with both technical and non-technical stakeholders

• Thriving when working with others

Nice to have

• Some experience with the key TypeScript dependencies we are using: Nest.js, Slonik, Zod

• Some experience with key tools we are using: Docker, Gitlab, Grafana stack

• Infra: AWS, S3, Kubernetes

Location

You can work from home 100% of the time, but you should be able to easily join one of our hubs from time to time. Our hubs are Paris, London, and New-York.

Interview Process

1. Talent Screen - 45 min

2. Technical Interview - 90 min

3. Team Interview - 45 min

4. Leadership Interview - 45 min

Benefits

✨ Fully-Remote / Hybrid – The choice is yours! 🌍🏡

🎉 25 Days Paid Holiday + Bank Holidays + Your Birthday Off 🎂

💰 4% Pension Contributions towards your future! 💼

🏥 Private Medical & Dental Insurance with Allianz! 🦷💊

👶 Attractive Maternity and Paternity Policies for your growing family 👨‍👩‍👧‍👦

💪 Gym Classes or Spa Treatments with ClassPass! 🧘‍♂️🧖‍♀️

💻 Apple MacBook Pro – The best tech at your fingertips! 💻✨

💵 $200 Workplace Budget to create your perfect home office! 🏠💼

📚 Training and Development Budget – Invest in yourself and grow! 🚀

Apply Now: