Sr Backend Software Engineer

OP is partnering with a fast-growing iGaming startup building the next generation of sweepstakes-based gaming experiences, operating at the intersection of gaming, technology, and user engagement. Their platform enables seamless cross-game interactions powered by innovative mechanics. With plans to triple in size this year, they are looking for builders who thrive in fast-paced environments where ideas move from concept to live product in weeks.

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.

Why Join?

• Opportunity to work on a live, scaling product.
• High-growth environment with strong career progression.
• Fully remote with flexible work culture.
• Collaborative, innovation-driven team with direct leadership exposure.

Benefits

• 100% medical, dental & vision coverage (partial for dependents).
• 401(k) employer match.
• Annual performance bonus: 10% 15%.