Clair Senior Fullstack Engineer

About the Role

We are seeking a world-class Senior Fullstack Engineer who thrives on solving high-impact, complex problems. You will own critical system architecture, shape the future of real-time financial transactions, and build at a massive scale. Your work will directly enable millions of hourly workers to access financial freedom. 

We operate at the intersection of fintech, embedded finance, and real-time payroll systems—building products that handle millions of transactions with sub-second performance.

If you are a problem solver who loves technical challenges, is passionate about performance optimization, security, and scalable architecture, and wants to influence key product decisions, you’ll love working with us.

Key Responsibilities:

• Own and architect mission-critical financial applications, ensuring real-time, high-availability performance at scale.
• Design highly scalable APIs that support millions of transactions, leveraging cutting-edge cloud infrastructure.
• Lead high-performance engineering projects from conception to deployment, ensuring code quality, maintainability, and security.
• Optimize transaction processing systems to ensure instant payments and sub-millisecond response times.
• Make key architectural decisions to scale our on-demand pay and embedded finance solutions.
• Set the engineering bar high by leading performance optimizations, security improvements, and system reliability enhancements.
• Work alongside top engineers in a fast-paced, high-impact environment where decisions directly impact millions of users.

Required Experience & Qualifications:

• 5+ years of experience building, launching, and maintaining scalable fintech products.
• Demonstrated mastery in backend development is required. While proficiency with PHP/Laravel is preferred, candidates with experience in other backend languages and a proven ability to rapidly adapt to new technologies will be considered.
• Proficiency in frontend development using React.js, TypeScript, JavaScript (ES6+), and Expo (React Native).
• Appreciation for beautiful, clear code and great developer experience
• Ability to pr
  
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