About Prove 

As the world moves to a mobile-first economy, businesses need to modernize how they acquire, engage with and enable consumers. Prove’s phone-centric identity tokenization and passive cryptographic authentication solutions reduce friction, enhance security and privacy across all digital channels, and accelerate revenues while reducing operating expenses and fraud losses. Over 1,000 enterprise customers use Prove’s platform to process 20 billion customer requests annually across industries, including banking, lending, healthcare, gaming, crypto, e-commerce, marketplaces, and payments. For the latest updates from Prove, follow us on LinkedIn. Prove is driving the future of digital identity. We are looking for Provers who know how to make an impact. We’re talking self-starting professionals who thrive in a fast-paced environment, process information quickly, and make intelligent decisions. The work is challenging and requires not only smart but natural curiosity and tenacity. Teamwork is also important to us – we work together and play together.    Prove has big plans, and we’re excited about the future. If this sounds like the place for you – come join our team!  Title: Senior Software Engineer Department: Engineering  Reports To: Senior Director, Engineering FLSA Status: Exempt  Location: US (Remote) This Senior Software Engineer will be part of the team designing and developing the digital identity infrastructure. Leveraging your knowledge and passion for excellence you will deliver well-thought-out software solutions as part of a fault-tolerant, scalable platform utilizing a variety of cutting-edge technologies. This is a hands-on role where you will need to demonstrate the skills, experience, and confidence to work with other senior engineers and product management team members to deliver solutions that will delight our customers.   Key Responsibilities:

Write well designed, testable, efficient code that meets coding standards. Ensure designs comply with requirements, perform code reviews. Own delivery of software features from inception to production, develop project roadmap, engage with Product to define technical requirements and design, engage with IT/Ops to ensure software makes it out to production in a timely manner. Exercise creative thinking and imagination to find solutions to hard problems. Lead projects and mentor engineers. Promote, maintain, and enhance our cultural values of humility, passion, inclusion, and leadership.

  Qualifications and Experience:

10+ years of software development experience Deep understanding of object-oriented programming and experience with at least one object-oriented programming language (e.g. Python, Java) Experience architecting and developing solutions to complex problems. Experience with public cloud services (AWS or Google Cloud Platform or Azure) Bachelors in computer science or other quantitative fields or relevant experience. Experience with database internals, database language theories, database design, SQL, Graph QL and No SQL technologies. Prior technical leadership experience  AWS Certification DevOps Experience highly desirable Strong passion for learning about our products and markets through in-house and external training. Experience in high growth /pre-IPO Technology companies is a plus.

This position description should not be considered the final description of the position. The position description is not intended to be an all-inclusive list of duties and standards of the positions. It should be assumed that we would, to some extent, structure responsibilities in accordance with the successful candidate’s capabilities and changing business conditions. Incumbents will follow any other instructions, and perform any other related duties, as assigned by their supervisor. The salary range for this role is $145,000 - $180,000 plus company bonus. The offered salary will be determined by the applicant’s education, experience, knowledge, skills, and abilities, as well as location, internal equity, and alignment with market data. Benefits & Perks for FTE Provers:

Competitive salaries & Bonus Plan (for eligible roles) and Equity Plan Modern Health for financial, mental, and physical wellness 401(k) Retirement Plan & Match (US Offices) and Local Country Pension (International Offices) Unlimited Vacation and Flexible hours Comprehensive medical benefits for you and your family ❤️ Emotional & Physical Wellness – Access to wellness services (EAP & Prove Well-Being Reimbursement) Bottomless snacks & beverages for certain office locations Daily GrubHub stipend for lunch if coming into the office (US Offices) A great place to work and connect with other talented Provers like yourself!

Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply to jobs unless they meet every single qualification. At Prove we are dedicated to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Equal Opportunity Employment:Prove is an equal opportunity employer committed to providing equal employment opportunity for all people regardless of race, color, religion, gender or sexual orientation, age, marital status, national origin, citizenship status, disability, veteran status or other personal characteristics  Privacy & Data Protection:When you are applying for a job at Prove, we collect and use your personal information in the job application process. To understand more about how Prove uses your personal information, please see our Recruitment Privacy Policy on our website.

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🚀 Join the Future of Commerce with Whatnot!  Whatnot is the largest livestream shopping platform in North America and Europe to buy, sell, and discover the things you love. We’re re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we’re inspired by innovation and anchored in our values. With hubs in the US, UK, Ireland, Poland, and Germany, we’re building the future of online marketplaces—together. From fashion, beauty, and electronics to rare collectibles like trading cards, comic books, and even live plants, our live auctions have something for everyone. And we’re just getting started! As one of the fastest growing marketplaces, we’re looking for bold, forward-thinking problem solvers across all functional areas. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business, and bring people together through commerce. 💻 Role The Data team at Whatnot creates services that improve our core product experience and unlock business value. As an engineer, you will play a critical role in defining the technical direction and leading the development of the retrieval platform to power next-gen systems at Whatnot. You will be responsible for driving innovation, ensuring the scalability and performance of our systems, and working with a team of engineers to deliver high-quality solutions. Working in a highly cross-functional role, you’ll also make key decisions about how we integrate data systems at Whatnot – and then make it happen. You’ll be positioned to align efforts to optimize other aspects of our company’s architecture, such as machine learning, real-time analytics, stream processing, and content understanding to name a few. US Based: Team members in this role are required to be within commuting distance of our Los Angeles, San Francisco, Seattle, or New York hubs.  👋 You Curious about who thrives at Whatnot? We’ve found that embodying a low ego, growth mindset, and high-impact drive goes a long way here. As our next Software Engineer of Data, you should have 3+ years of experience, plus:

Ability to write well-tested, API-driven applications and services that run at scale in production. Track record of building scalable and performant distributed systems Expertise in managing cloud data stores (Snowflake, BigQuery, Redshift, etc.) for processing and serving data products Expertise in streaming data systems such as Kafka, Flink, or Pulsar, and the ability to design and manage real-time processing pipelines at scale. Strong experience supporting operational systems to ensure uptime, reliability, and maintainability, including monitoring, alerting, and incident management.

In addition to these role-specific qualifications, all engineering team members are expected to have:

Experience managing cloud technologies (AWS or Google Cloud) and comfort with infrastructure-as-code approaches (e.g. Terraform). Proficiency in at least one server-side programming language (preferably Python), common algorithms and data structures, and software design principles. Self-starter ethic, thriving under a high level of autonomy. Exceptional interpersonal and communication skills.

💰Compensation $158,000/year to $245,000/year + benefits + equity The salary range may be inclusive of several levels that would be applicable to the position. Final salary will be based on a number of factors including, level, relevant prior experience, skills, and expertise. This range is only inclusive of base salary, not benefits (more details below) or equity. 🎁 Benefits 

Flexible Time off Policy and Company-wide Holidays (including a spring and winter break) Health Insurance options including Medical, Dental, Vision Work From Home Support

Home office setup allowance Monthly allowance for cell phone and internet

Care benefits

Monthly allowance for wellness Annual allowance towards Childcare Lifetime benefit for family planning, such as adoption or fertility expenses

Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally Monthly allowance to dogfood the app

We expect all employees to actively use the product!

Parental Leave

16 weeks of paid parental leave + one month gradual return to work *company leave allowances run concurrently with country leave requirements which take precedence.

💛 EOE  Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.

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At Edge & Node, we’re focused on building The Graph, a decentralized protocol for accessing and organizing the world’s knowledge and information. Subgraphs, a core technology developed by Edge & Node to access blockchain data, are widely used across web3 to power decentralized applications.

We’re a tight-knit, efficient team with a bias for action and a strong sense of ownership. Our teams have autonomy, low ego, and are trusted to drive projects end to end. We care deeply about building infrastructure for web3 use cases and collaborate across disciplines to make that happen. If you’re passionate about infrastructure that has a real impact on our users, enjoy solving hard problems, and thrive in a fast-paced environment, you’ll feel right at home.

The Engineering Operations team, including Site Reliability, works closely with engineering teams across Edge & Node to ensure the services we operate are reliable, performant, predictable, and secure. We are on a mission to take our service delivery to the next level.

About the Role

We’re looking for a Tech Lead, Site Reliability Engineering (SRE) to help guide the future of infrastructure and reliability at Edge & Node within The Graph ecosystem. In this role, you’ll be both a technical leader and hands-on contributor, driving industry best practices in reliability, infrastructure, observability, and operational excellence while collaborating cross-functionally to optimize and secure our systems.

You’ll play a critical role in setting the technical direction for the team—shaping how we build, scale, and support our services—while also staying actively involved in the day-to-day work. This is a role for someone who’s passionate about infrastructure and security, has stellar interpersonal skills, and is excited to lead us toward a more scalable, observable, and resilient future. You will partner closely with the team’s manager as well as stakeholders across the engineering organization.

What You’ll Do

• Lead by example as a hands-on technical contributor, participating in on-call rotations, incident response, and the day-to-day work of the SRE team
• Partner with engineering and product leadership to shape roadmaps, define team priorities, and plan work that improves reliability, performance, and scalability across the stack
• Team with and support other SREs, leveraging your leadership and soft skills to foster a culture of continuous learning, blameless retrospectives, and technical excellence
• Own the incident lifecycle, including root cause analysis and follow-up remediation, and work to make our systems increasingly self-healing
• Drive SRE team strategy, advocating for industry best practices, standardization, and secure and optimized infrastructure
• Architect and improve core infrastructure services, with an eye toward high availability, fault tolerance, performance, and end-to-end observability
• Work across teams to challenge assumptions, fundamentally overhaul our systems, and improve documentation
• Collaborate with external partners and vendors as needed to ensure the health of critical services

What We’re Looking For

• Proven experience as a senior or lead SRE or devops engineer, ideally having led large-scale reliability initiatives or infrastructure transformation projects
• Strong project or technical leadership skills, with a track record of guiding teammates and setting technical direction while still remaining hands-on
• Deep knowledge of the SRE/devops domain, including incident response, security awareness, maintaining SLAs and uptime guarantees, observability, supporting internal development teams, project and capacity planning, and/or system architecture
• Experience with both cloud and on-prem core infrastructure, ideally with Google Cloud Platform (GCP), bare metal infra, and kubernetes (or similar orchestration tools)
• Fluency in infrastructure as code, Terraform, automation tooling, CI/CD pipelines, and system monitoring solutions such as Grafana
• Excellent interpersonal, leadership, and communication skills, with the ability to align stakeholders and motivate and unblock team members
• Experience in web3, crypto, or blockchain is a plus (but not required)

About The Graph

The Graph is the indexing and query layer of the decentralized internet. As the first open data marketplace to introduce and standardize subgraphs, The Graph is a flagship solution for accessing blockchain data across web3.

Since launching in 2018, tens of thousands of developers have built subgraphs to power dapps across 90+ blockchains. As demand for web3 data grows, The Graph is evolving to support a broader range of data services and query languages, expanding what’s possible with decentralized infrastructure—now and in the future.

Discover more about how The Graph is shaping the future of decentralized physical infrastructure networks (DePIN) by following The Graph on X, LinkedIn, Instagram, Facebook, Reddit, and Medium. Join the community on The Graph’s Telegram, and join technical discussions on The Graph’s Discord.

About the company and the project:

Dynamic IT software development company specializing in IT development and project management services mostly in web3 industry in the search for aBlockchain Developer. We support digital asset exchanges, copy trading platforms, B2Copy platforms, gaming applications, Web3, and blockchain applications, delivering high-quality, scalable, and secure solutions.

Your tasks on the position:

• Develop, test, and deploy secure and efficient smart contracts using Solidity
• Design and implement blockchain architecture and infrastructure for various use cases
• Write clean, reusable, and well-documented code following industry best practices
• Collaborate with front-end and back-end developers to integrate blockchain functionality with applications
• Conduct rigorous testing and debugging to ensure the security and functionality of smart contracts
• Stay up to date with the latest trends and advancements in blockchain technology
• Provide technical insights and recommendations for blockchain solutions

Requirements:

• 3+ years of experience in blockchain development with a strong focus on smart contracts
• Demonstrated ability to write secure, gas-efficient, and optimized smart contracts
• Hands-on experience with blockchain frameworks like Ethereum, Polygon, or other EVM-compatible chains
• Deep understanding of Layer 2 blockchain architectures (e.g., rollups, zkEVMs, optimistic rollups) — including bridging, state commitment, and fraud/validity proofs
• Solid grasp of blockchain security best practices (e.g., reentrancy, access control, gas efficiency, upgradability patterns)
• Ability to design scalable on-chain/off-chain architectures, including interaction with relayers, oracles, and decentralized storage
• Strong understanding of blockchain concepts, including consensus algorithms, token standards (ERC-20, ERC-721, ERC-1155), and decentralized applications (dApps)
• Familiarity with tools like Truffle, Hardhat, Remix, and Ganache
• Proficient in programming languages such as JavaScript, TypeScript, or Python for blockchain integration
• Experience with version control systems like Git
• English С1+

Will be an advantage:

• Experience with DeFi protocols, NFTs, or Web3 development, ideally with DePin too
• Familiarity with layer-2 scaling solutions and cross-chain communication protocols
• Knowledge of Docker, Kubernetes, or similar container orchestration tools
• Exposure to cloud platforms such as AWS, Azure, or Google Cloud
• Participation in open-source blockchain projects or contributions to the blockchain community

Benefits:

• Regular salary increases
• Career growth possible faster than in different companies
• Paid sick leave
• Medical insurance
• Residential UAE visa

Apply Now:

Who We Are: Alpaca is a US California headquartered brokerage infrastructure technology company and self-clearing broker-dealer, delivering execution and custody solutions for Stocks, ETFs, Options, Cryptocurrencies, and more, and has raised over $170 million in funding. Amongst our subsidiaries, Alpaca is a licensed financial services company in multiple countries, and we serve hundreds of financial institutions globally such as broker-dealers, investment advisors, hedge funds, and crypto exchanges. Alpaca’s globally distributed team members bring in diverse experiences such as engineers, traders, and brokerage professionals to achieve our Mission of opening financial services to everyone on the planet. We are also deeply committed to open-source contributions and fostering a vibrant community. We will continue to enhance and improve our award-winning developer-friendly API and the infrastructure behind it. Our Team Members: We’re a team of 150+ globally distributed members who love working from our favorite places worldwide. Our team spans the USA, Canada, Japan, Hungary, Nigeria, Brazil, the United Kingdom, and more! We’re looking for candidates eager to join Alpaca’s growing organization, who are excited about our Mission of “Open financial services to everyone on the planet and share our Values of “Stay Curious,” “Have Empathy,” and “Be Accountable.”  

Your Role: As a senior software engineer, you will help build and scale the systems and services that form Alpaca's foundation and empower millions of users who trade billions of dollars worth of assets. The identity team is responsible for building a modern platform for onboarding users, verifying their identity, evaluating risk, and managing their trading accounts. These people, businesses, and accounts are foundational components of the Alpaca system, and we need to build new capabilities while achieving very high automation rates. We are expanding the platform to handle identity verification on a global basis and to support our growing set of account types. We are looking for senior engineers who are keen on providing quality solutions, have great fundamentals, have proven experience building and architecting at scale, and are not afraid of challenging conventions or voicing their opinions. In this role, you will have the autonomy to design and implement solutions to achieve defined goals while actively participating in defining those goals. An understanding of cloud-based modern architecture, infrastructure, and orchestration practices is also a great asset we are actively looking for. Things You Get To Do:

Contribute to a core system that millions of end users will rely on Help us create a global financial identity verification and risk management service Implement backend services and work on designing an architecture where reliability matters Take ownership of tasks, identify and address technical challenges proactively, and propose innovative solutions Contribute to architectural decisions, offering insights and suggestions for designing scalable and reliable systems Work with other teams to improve how our systems interact with theirs and improve Alpaca systems in general Maintain good software quality and test coverage Participate in code reviews Troubleshooting on incidents and reported bugs You may be asked to be on-call to assist with engineering projects that are timely in nature

Who You Are (Must-Haves):

Strong problem-solving skills paired with a proactive mindset Ability to turn business requirements into a flexible implementation model Excellent communication and collaboration skills Ability to work independently and as part of a team A preference for simple and elegant solutions At least 3 years of experience working on systems at scale Proven experience in building and maintaining microservices Strong coding skills, preferably in Go Ability to write clean, well-tested, and maintainable code Experience with domain-driven design and event-driven design Ability to debug issues or, better yet, foresee problems and avoid them entirely Familiarity with containerization and orchestration technologies, especially Kubernetes Experience with cloud platforms, preferably Google Cloud Platform Experience with messaging queues and message brokers Experience with relational databases, preferably PostgreSQL

Who You Might Be (Nice-to-Haves):  

Experience in the finance industry Experience with financial identity management, e.g. KYC Experience integrating with external services Experience working remotely Experience working at a startup DevOps mindset is an asset How We Take Care of You:

Competitive Salary & Stock Options Benefits: Health benefits start on day 1. In the US this includes Medical, Dental, Vision. In Canada, this includes supplemental health care. In Japan, you are offered local benefits. Internationally, this includes a stipend value to offset medical costs.    New Hire Home-Office Setup: One-time USD $500 Monthly Stipend: USD $150 per month via a Brex Card Work with awesome hard working people, super smart and cool clients and innovative partners from around the world

Alpaca is proud to be an equal opportunity workplace dedicated to pursuing and hiring a diverse workforce. Recruitment Privacy Policy

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Who We Are: Alpaca is a US California headquartered brokerage infrastructure technology company and self-clearing broker-dealer, delivering execution and custody solutions for Stocks, ETFs, Options, Cryptocurrencies, and more, and has raised over $170 million in funding. Amongst our subsidiaries, Alpaca is a licensed financial services company in multiple countries, and we serve hundreds of financial institutions globally such as broker-dealers, investment advisors, hedge funds, and crypto exchanges. Alpaca’s globally distributed team members bring in diverse experiences such as engineers, traders, and brokerage professionals to achieve our Mission of opening financial services to everyone on the planet. We are also deeply committed to open-source contributions and fostering a vibrant community. We will continue to enhance and improve our award-winning developer-friendly API and the infrastructure behind it. Our Team Members: We’re a team of 150+ globally distributed members who love working from our favorite places worldwide. Our team spans the USA, Canada, Japan, Hungary, Nigeria, Brazil, the United Kingdom, and more! We’re looking for candidates eager to join Alpaca’s growing organization, who are excited about our Mission of “Open financial services to everyone on the planet and share our Values of “Stay Curious,” “Have Empathy,” and “Be Accountable.”  

Your Role As a Senior Backend Software Engineer on our Payments team, you will architect, build, and scale mission-critical financial systems that form the foundation of Alpaca's global treasury platform. You'll be responsible for systems that process billions of dollars in transactions daily while ensuring financial integrity, regulatory compliance, and operational excellence. Key Responsibilities:

Design and implement robust, scalable payment processing systems that support ACH and SWIFT payment rails, with architecture capable of expanding to additional payment networks across multiple jurisdictions Architected and maintained financial ledger systems that enforced proper accounting principles,s including double-entry bookkeeping, balance sheet integrity, and transaction immutability Develop two-phase transfer mechanisms that ensure atomicity, consistency, isolation, and durability (ACID) in financial transactions Create automated reconciliation systems for transaction verification, account balancing, and error detection Implement financial controls,s including segregation of duties, approvals workflow, and audit trails Build and enhance settlement systems that maintain perfect financial record-keeping with complete audit history Design and implement secure, auditable APIs for internal and external payment services Contribute to technical decision-making for the payments infrastructure roadmap Mentor junior engineers and participate in code reviews to maintain high engineering standards

Technical Environment:

Backend services primarily written in Go with a microservices architecture API services using gRPC for internal communication and RESTful interfaces for external systems Event-driven design patterns using message brokers for asynchronous processing PostgreSQL for transactional data with strong consistency requirements Kubernetes for containerization and orchestration on Google Cloud Platform Rigorous testing practices, including unit, integration, and end-to-end tests Continuous integration and deployment pipelines

Must-Haves:

5+ years of backend engineering experience with at least 3 years working with distributed systems at scale Strong expertise in Go, including production experience building and maintaining Go microservices Deep understanding of financial transactions, payment processing systems, and transaction safety Experience with ACH and SWIFT payment networks and their technical requirements Strong knowledge of financial accounting principles including:

Double-entry accounting with debits and credits Trial balance reconciliation General ledger management Financial reporting and statement generation Transaction matching and exception handling

Experience with two-phase commit protocols or similar transaction safety mechanisms Experience designing and implementing gRPC services and API gateways Proven experience with relational databases (preferably PostgreSQL) for financial record-keeping Experience working with distributed systems, eventual consistency, and event sourcing Strong system design skills with the ability to make architectural decisions and trade-offs Excellent problem-solving skills with a focus on reliability, security, and auditability

Nice-to-Haves:

Experience with international payment processing systems and multi-currency infrastructure Knowledge of ISO20022 financial messaging standards and implementation Experience with banking APIs and integration with core banking systems Familiarity with financial regulations related to money movement, including AML/KYC requirements Understanding of regulatory frameworks for cross-border transactions Experience building financial systems that support multiple jurisdictions Experience mentoring engineers and providing technical leadership Prior experience in fintech, brokerage, or trading systems Experience with observability tools for distributed systems monitoring Knowledge of security best practices for financial systems How We Take Care of You:

Competitive Salary & Stock Options Benefits: Health benefits start on day 1. In the US this includes Medical, Dental, Vision. In Canada, this includes supplemental health care. In Japan, you are offered local benefits. Internationally, this includes a stipend value to offset medical costs.    New Hire Home-Office Setup: One-time USD $500 Monthly Stipend: USD $150 per month via a Brex Card Work with awesome hard working people, super smart and cool clients and innovative partners from around the world

Alpaca is proud to be an equal opportunity workplace dedicated to pursuing and hiring a diverse workforce. Recruitment Privacy Policy

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