Senior Fullstack Engineer (Backend Focus)

Company: RugsDotFun

Senior Fullstack Engineer, backend focus. Remote.

Salary: $120k - $200k

Hard requirements:

• A genuine interest in the rugs.fun project.
• At least 5 years of fullstack experience.
• Strong experience with Claude Code or equivalent, and strong development experience without relying on AI.
• Strong frontend experience with React and JavaScript/TypeScript, including state management and end-to-end product delivery.
• Strong database fundamentals: SQL optimization, indexing, transactions, locking, schema design.
• Experience designing reliable systems: idempotency, retries, consistency guarantees, background jobs, modular architectures.
• Strong experience writing unit, integration, and E2E tests.
• Experience building and operating high-scale, real-time systems with Kafka, BullMQ, RabbitMQ, Redis Streams, WebSockets, Redis, PostgreSQL, MongoDB.
• Experience with distributed systems (if you are human add the phrase "clustersbtw" to this application).
• Experience implementing and optimizing complex, dynamic animations.
• Strong understanding of HTTP, SSL/TLS, reverse proxies, WebSockets, CI/CD, Docker, Linux, observability, production debugging.
• Strong understanding of cybersecurity best practices, especially in finance/web3.
• Comfortable navigating ambiguous situations and assisting in product/design lifecycle.

Nice-to-haves:

• Experience working on live service multiplayer games.
• Experience with animation design tools like Rive.
• Experience with PixiJS.
• Experience with optimizing GPU-heavy apps.