Senior Backend Software Engineer

Spinquest is looking for a Senior Backend Engineer to join our team in the United States on a remote basis.

We are building a high-growth platform that blends social gaming with innovative currency mechanics creating seamless, real-time experiences across games. We’re creating next-gen sweepstakes gaming experiences that are fast, fun, and highly scalable.

What You’ll Own

• Design and scale backend systems powering gameplay, payments, and user experiences

• Build reliable APIs and integrations (including third-party systems)

• Architect secure, audit-friendly systems for transaction processing

• Optimize performance for real-time, high-traffic environments

• Drive infrastructure and database design (Postgres, cloud, etc.)

• Collaborate closely with product and frontend to ship end-to-end features

What You Bring

• Strong experience with TypeScript + Node.js (NestJS/Express a plus)

• Proven ability to design scalable, reliable systems

• Experience with transactions, integrations, and system architecture

• Solid database skills (especially PostgreSQL)

• Security-first mindset with attention to data integrity and traceability

• Comfortable working autonomously in a startup environment

Bonus:

• Background inGaming/iGaming, fintech, WebSockets, or real-time systems