• Improve observability, reliability and availability by defining and measuring key metrics
• Build automation and improve systems to eliminate toil and operations work.
• Collaborate with our core infrastructure team to performance tune and optimize our cloud deployments. (Think Docker, Terraform, Kubernetes, EC2, etc.)
• Collaborate with Coinbase product teams to reduce service disruptions and automate incident response
• Proactively find and analyze reliability problems across our business units and stack, then design and implement software to create step-function improvements.
• Educate, mentor and hold accountable the engineering team to improve the reliability of our systems and make reliability a core value of the Coinbase engineering culture.

• You have at least 5+ years of software engineering experience
• Experience working with Object Oriented languages like Golang, Java, and or C#
• Strong skills around observability, debugging and performance tuning
• Strong communication skills and ability to explain technical concepts clearly and simply
• Strong interpersonal skills working with engineers from junior to principal levels
• Demonstrated critical thinking under pressure

• Experience designing and building reliable systems capable of handling high throughput and low latency
• Experience with observability and monitoring systems such as Kibana, Datadog, etc.
• Experience working in a highly regulated environment
• Exposure to both NoSQL and SQL database technologies such as DynamoDB, MongoDB, PostgreSQL, AWS Aurora.
• Familiarity with working in rapid growth environments
• 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 #: GPIN05US

#LI-Remote

Apply Now:

Wallet in Telegram is your gateway to the world of digital currencies, specially tailored for individuals in emerging markets. We understand the complexities and intimidation often associated with existing crypto solutions, which is why we've designed the Wallet to be the ultimate user-friendly platform for managing finances. No need to open a traditional bank account or wrestle with convoluted crypto exchanges and wallets.

Leveraging the power of advanced blockchain technology, Wallet delivers a seamless onboarding experience into the crypto ecosystem. It enables users to effortlessly store, send, and receive digital currencies, all via the familiar interface of Telegram. Managing your finances becomes as simple as sending a message.

At Wallet, we're committed to using technology to disrupt traditional banking systems, providing our customers with more flexible and inclusive financial services. Whether you're a crypto novice or seeking to simplify your digital finance experience, Wallet is crafted with your needs in mind.

We are looking for a Software Engineer (Crypto Anti-Fraud Platform) to join our team and help secure high-load systems against fraudulent activities. Your main responsibility will be to create scalable, fault-tolerant, and intelligent systems to detect and prevent abuse, ensuring platform integrity and user safety.

Responsibilities:

• Design and implement antifraud logic and services in a highload environment.
• Develop scalable and fault-tolerant detection systems using behavioral signals and heuristics.
• Optimize performance of real-time fraud detection pipelines.
• Collaborate with product, data, and platform teams to prevent exploitation vectors.
• Integrate with monitoring and alerting systems for early threat detection and response.
• Contribute to the design and development of safety-critical platform features.

Requirements:

• 5+ years of experience as a Software Engineer, preferably in fintech or security-focused environments.
• Strong understanding of distributed systems and anomaly detection principles.
• Proficiency in one or more programming languages (Go, Java, C++) and willingness to use Python or Kotlin for detection logic.
• Solid knowledge of databases (SQL, NoSQL), efficient querying, and handling of high-volume event data.
• Experience with logging, monitoring, and distributed tracing in security-sensitive contexts.

Nice to Have:

• Experience building or integrating anti-fraud, abuse detection, or risk scoring systems.
• Familiarity with machine learning techniques for behavioral analysis and anomaly detection.
• Experience with containerized environments and orchestration tools (Kubernetes, Docker).
• Understanding of crypto wallets, smart contracts, and blockchain-based attack vectors.

Why it is a fantastic opportunity:

• Our business is growing at an exponential scale.
• Work in a well-funded startup environment with unique growth opportunities and a chance to join a rapidly growing company with a unique product.
• Be based remotely.
• Participation in the performance review and bonus programme.
• Compensation for medical expenses.
• Provision of necessary equipment.
• Annual vacation of 20 working days plus 11 paid days off.
• 14 days of paid sick leave to support your health and recovery when needed.
• Access to internal English courses for continuous learning and improvement in language skills.

Apply Now:

This role is for one of the Weekday's clients

Location: Remote (India)

JobType: full-time

What You’ll Do

• Take ownership of the quality, reliability, and availability of code being shipped.
• Oversee day-to-day operations and maintain comprehensive documentation of production features.
• Develop product features from scratch, adhering to technical standards set by the Technology Lead.
• Write clean, maintainable, and scalable code that complies with development policies.
• Participate in on-call incident response on a rotational basis, including after-hours and weekends.
• Collaborate with the Technology Head to define product architecture and document technical decisions.
• Contribute to product meetings, providing insights on architecture, design, and feature development.
• Bridge the gap between documentation and development by providing weekly feedback to the Research & Analysis team.
• Mentor and manage junior developers and interns.

What Makes You a Good Fit

• Strong expertise in blockchain technologies, including decentralized computing, DLTs, and decentralized applications.
• Proficient in JavaScript, TypeScript, and frameworks such as React, Angular, and Node.js.
• Experience with client-server architecture and development using client-side JavaScript frameworks (React Native, React.js).
• In-depth knowledge of Bitcoin, Ethereum (EVM), and other blockchain networks.
• Hands-on experience working with RESTful APIs.
• Solid understanding of data structures, algorithms, and design patterns.
• Experience coding in Solidity for smart contract development.
• Familiarity with blockchain development frameworks such as Truffle & Hardhat.
• Proficiency in NoSQL databases (MongoDB) and experience with GraphQL queries is a plus.
• Strong debugging and issue-resolution skills for frontend and backend solutions.
• Understanding of containerization tools like Docker and Kubernetes, and CI/CD pipelines.
• Experience working with cloud platforms like AWS, GCP, and keeping up with the latest trends in blockchain development.
• Knowledge of monolithic and microservices architectures.
• Proficient with Git for version control.
• Familiarity with testing frameworks such as Jest, Mocha, Chai, Karma, or Enzyme is a plus.
• Experience in writing reusable libraries.
• Contributions to open-source blockchain projects will be an added advantage.

Apply Now:

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time We are looking for Software Engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO:

Design, develop, and maintain scalable backend services using Kotlin & Java Build and optimize APIs for seamless integration with front-end and third-party systems. Work with relational and NoSQL databases to manage and process large-scale data efficiently. Implement and maintain CI/CD pipelines for smooth deployment and testing processes. Collaborate with cross-functional teams to deliver secure, high-quality, and user-centric solutions. Conduct code reviews and mentor junior developers to foster a culture of continuous improvement. Work closely with design and product teams to ensure seamless integration of user-facing and server-side features.

WHAT YOU WILL NEED:

Proficiency in Java or Kotlin Strong knowledge of microservices architecture, API design, and database systems (PostgreSQL, MySQL) Understanding of system design principles and scalable architectures Familiarity with Docker and CI/CD tools. Experience with event-driven architectures (e.g., Kafka, RabbitMQ). Strong problem-solving skills, attention to detail, and a commitment to code quality.

NICE TO HAVE:

Experience with cloud platforms like GCP, AWS or Azure Knowledge of blockchain technologies or financial systems. Proficiency in frontend technologies like React

COMPENSATION & PERKS

Competitive full-time salary based on experience and meaningful equity in an industry-leading company Awesome office location in the heart of Paris - working 3 days in the office is mandatory Work from Anywhere policy The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry Unlimited vacation policy; work hard and take time when you need it Performance-based bonuses paid in cash Apple equipment provided by the company

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time. You may contact our Data Protection Officer by email at email. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses.  Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment.  Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.

Apply Now:

About Us: Founded more than 15 years ago and headquartered in Chicago, the DV Group of financial services firms has grown to more than 350 people operating throughout North America and in Europe. Since spinning out of a large brokerage firm in 2016, DV Trading has rapidly scaled as an independent proprietary trading firm utilizing its own capital, trading strategies, and risk management methodologies to provide liquidity to worldwide financial markets and hedging opportunities to commodity producers and users. Now, DV group affiliates include two broker dealers, a cryptocurrency market making firm, and a bourgeoning investment adviser.DV Energy is a rapidly growing division that specializes in trading crude oil, refined products, natural gas, and related energy markets across US, Europe, and Asia. Our proprietary risk management and trading methodologies along with a strong ability to adapt to changing conditions has allowed DV Energy to grow into one of the largest financial participants within the global energy complex.   Overview: DV Trading, LLC is a proprietary trading firm with over 200 employees trading equites, fixed income, FX and commodity products. DV Energy is a rapidly growing division that specializes in trading crude oil, refined products, natural gas, and other commodities across US, European, and Asian markets. Our combined risk management, world class technology, and human capital have enabled us to become one of the largest liquidity providers within the global energy complex. We are looking for an experienced software developer to work with a small team responsible for development and daily operations of an event-based risk management, market data and pricing platform using modern and performant technologies. This effort is part of a greenfield project and the suitable candidate will be involved in the development of the overall trading system.   Responsibilities:

Work alongside other software engineers, traders, and quants to develop and expand our risk management and trading platform Create scalable services for financial derivatives pricing and market data Efficient storage and access scheme for data and reference data across all frequencies, including microstructure data Building high-performance components for simulation and live trading

  Requirements:

Bachelor’s degree or higher in CS, Engineering or other technical discipline 2+ years professional experience developing infrastructure for quantitative trading Demonstrated ability to program in a scientific computing environment, preferably in Python/NumPy/Pandas and Java/C++ Experience working with distributed systems and large data sets Strong knowledge of algorithms, design patterns, OOP, threading, multiprocessing, etc. Experience with SQL, NoSQL, or tick databases Experience working in a Unix environment and git Familiarity with Kafka, Docker, AirFlow, Luigi Strong communication skills in verbal and written English. Domain knowledge in futures & swaps is a plus

  Benefits 

Highly competitive compensation and bonus structure Meritocratic environment with ample opportunity for growth Blue Cross Blue Shield Medical PPO Health Savings Account, MetLife Dental, MetLife Vision Coverage Flex Spending Account Employer paid life insurance Optional Long-term Disability, and AD&D Insurance Pre-Tax Parking and Transit Casual work environment

DV is not accepting unsolicited resumes from search firms. Only search firms with valid, written agreements with DV should submit resumes in response to DV’s posted positions. All resumes submitted by search firms to DV via e-mail, the Internet, personal delivery, facsimile, or any other method without a valid written agreement shall be deemed the sole property of DV, and no fee will be paid in the event the candidate is hired by DV. DV is proud to be an equal opportunity employer and committed to creating an inclusive environment for all employees.

Apply Now:

Bitfinex is a digital asset trading platform offering state-of-the-art services for digital currency traders and global liquidity providers.

Founded in 2012, Bitfinex was one of the first professional platforms set up to accommodate for the booming interest in cryptocurrency trading. Since then, our team has gained invaluable experience whilst cementing our spot as the go-to platform for digital asset traders and institutions.

Our Mission

Our aim is to create a free and accessible global digital economy by disrupting the current financial services industry.

Our team is entirely remote, composed of individuals with an ownership mentality; no one waits to be told what to do. Each member of the team is a highly motivated self-starter that is comfortable with autonomy and believes in lifelong learning. When we’re not working, we’re dreaming about it. We place our egos aside and thrive within a culture that fosters one another from the birth of a concept to launch of a product.

At Bitfinex you have the freedom to work as you please - all that matters is execution.

Join us and help lay the foundation for a decentralized future.

We are currently looking for a Python developer to join our Risk Management Team.

Responsibilities

• Develop and maintain risk analytics tools and interactive web applications using Python (Flask/Django/FastAPI).

• Maintain and optimize interactive web applications for risk reporting, visualization and analysis.

• Design and implement APIs to support risk management workflows.

• Automate data pipelines using Pandas, NumPy, and SQL/NoSQL databases for efficient data processing and risk reports.

• Ensure secure and scalable architecture for risk-related applications, following best practices in software development.

• Collaborate with risk analysts to translate requirements into technical solutions.

• Maintain code quality through version control, testing and documentation.

Technical Skills:

• Strong Python programming skills, with experience in Flask/Django/FastAPI.

• Proficient in JavaScript and modern front-end frameworks.

• Experience designing and developing RESTful APIs.

• Strong knowledge of SQL and NoSQL databases.

• Strong understanding of security best practices.

• Experience with testing frameworks and version control.

Financial Knowledge:

• Understanding of financial markets/instruments and risk management.

• Experience working with market data, P&L, and risk metrics.

• Degree in Engineering, Mathematics, Physics or any other quantitative subjects.

• Flexibility as to working arrangements and hours.

• Located in an European country

Apply Now:

About the Team:

Zark Lab is building foundation models for blockchain transactions and information. Our work focuses on search, retrieval, and generative modeling applied to on-chain and off-chain data. We are developing systems that enable efficient indexing, retrieval-augmented generation (RAG), and vector search for structured and unstructured blockchain datasets. Our models process billions of transactions and smart contracts across multiple blockchains, applying sequence modeling, graph-based learning, and language models to extract insights and improve data accessibility.

The team consists of former founders, senior engineers, and executives from Google, Meta, Goldman Sachs, and other leading technology and financial institutions. Our backgrounds span large-scale distributed systems, machine learning, engineering, and information retrieval, and we are focused on advancing the state of AI-driven search and computation for blockchains.

What you will do:

• Build large-scale web scraping and ingestion pipelines for on-chain and off-chain blockchain data
• Develop and optimize search architectures, integrating vector search, ANN retrieval, and ranking models
• Fine-tune LLMs for query expansion, semantic search, and retrieval-augmented generation (RAG)
• Reduce query latency through index optimization, ANN search, and distributed execution
• Scale distributed indexing pipelines for efficient storage, deduplication, and retrieval
• Optimize distributed storage and compute with Snowflake, ClickHouse, RocksDB, and vector databases
• Build scalable systems to process high-throughput blockchain transactions and queries
• Deploy and optimize cloud workloads on GCP with Kubernetes and containerized processing

You might thrive in this role if you:

• BS/MS/PhD in Computer Science or a related field.
• 5+ years of experience in AI/ML, distributed search, or large-scale data processing.
• Strong programming skills in Python, TypeScript, or Node.js.
• Expertise in database design (SQL and NoSQL) and high-throughput data systems.
• Experience with web crawling, data scraping, and large-scale ingestion pipelines.
• Knowledge of vector search, retrieval-augmented generation (RAG), and embedding models (preferred).
• Hands-on experience with GCP, Kubernetes, and Docker for cloud-scale deployment.
• Passion for blockchain, AI search, and distributed systems.

Why join us?

• Work on cutting-edge generative AI and search technologies applied to blockchain
• Solve complex challenges in large-scale indexing, vector search, and AI-powered retrieval
• Be part of a high-caliber team of former founders, engineers, and executives from leading tech and financial firms
• Competitive salary and equity opportunities
• Fully remote team with a fast-moving, high-impact culture
• Own and shape the future of AI-driven search and retrieval for Web3

If you’re excited about search, generative AI, and real-time blockchain inference, we’d love to hear from you.

Apply now or reach out for more details.