over 1 year ago
Base Salary
$150k - $300k/yr
Responsibilities
- Design, build, and maintain high-performance APIs and backend services for the Web3 payments platform.
- Build new features that improve the product experience.
- Collaborate with product and protocol teams to architect solutions that meet business requirements.
- Write clean, well-tested code and participate in code reviews.
- Contribute to incident response and debug production issues to maintain system reliability.
Requirements
- Strong experience building production backend systems with modern languages.
- Proficiency in TypeScript.
- Deep understanding of distributed systems, APIs, and database design principles.
- Hands-on experience with cloud platforms and containerization technologies.
- Strong computer science fundamentals, including data structures and algorithms.
- Strong problem-solving and complex debugging abilities.
- Clear communication and effective cross-functional collaboration.
- Preferred experience includes blockchain integrations, smart contracts, DeFi protocols, high-scale payment processing, financial compliance systems, event-driven architectures, real-time data processing, open-source contributions, or technical writing.
Benefits
- Work on the future of payments and programmable money in a mission-driven environment.
- Collaborate with protocols, builders, and financial infrastructure providers.
- Primarily in-person at the Midtown, New York City headquarters, with required office days Monday through Thursday and optional remote work on Fridays.
Tech Stack
Categories
About fun.xyz
Fun.xyz builds crypto payment infrastructure and developer tools—APIs, SDKs, and checkout—to let companies accept and send onchain payments across assets and blockchains. It sells enterprise-grade payments and wallet services to fintechs, consumer apps, and marketplaces, with usage-based and transaction fees. Privately held and headquartered in New York, it raised a Series A in 2026.