Lead API Engineer

Summary

Join sFOX, a leading prime dealer connecting liquidity from over 30 exchanges and OTC desks, as their Lead API Engineer. You will play a key role in enhancing the sFOX API, focusing on building high-performance endpoints, maintaining backward compatibility, and providing code reviews. This position requires a strong background in backend/API services, experience with various technologies (Node.js, Typescript/Javascript, relational databases), and a commitment to developing and executing short- and long-term roadmaps. You will also mentor other developers and contribute to the overall technical direction of the API. The ideal candidate will have experience with public APIs, CI/CD pipelines, and modern frontend paradigms. sFOX offers a dynamic work environment and is committed to diversity and equal opportunity.

Requirements

• 5 years experience as a professional software engineer with at least 3 focused on Backend/API services
• Experience deploying and architecting back end applications that service single page applications, mobile applications, and/or public api consumption using Node.js . Experience with Ruby/Rails, Python/Django, PHP/Laravel, Go or Elixir/Phoenix will also be considered
• Experienced in Typescript or javascript with knowledge of typed languages
• Experience with Relational Databases such as MySQL, Postgresql, MSSQL, etc
• Familiar with writing and maintaining automated test suites
• B.S., M.S., or Ph.D. in Computer Science or similar technical field of study (or equivalent practical experience.)

Responsibilities

• Build performant API endpoints
• Maintain backward compatibility with existing clients
• Give quality feedback on code review with peers
• Contribute to the technical direction of the API
• Develop and execute against both short- and long-term roadmaps by making effective tradeoffs that consider business priorities, user experience, and a sustainable technical foundation
• Teach and mentor other developers through pair programming sessions, code reviews, and 1:1s

Preferred Qualifications

• Experience deploying and maintaining public APIs
• Experience setting up and managing CI/CD pipelines
• Experience with modern frontend paradigms such as ember, react, vue, svelte
• Experience with gRPC
• Advanced Experience with SQL, specifically MySQL
• Experience working with websockets and real time data
• Experience in high-frequency or algorithmic trading
• Experience in trading cryptocurrency
• Experience in a leadership role