Senior Backend Developer (Node.js)

OptiPlay is building a high-performance, real-time slot gaming platform. We are seeking a Senior Backend Developer who will take ownership of the entire backend direction and serve as a key technical leader.

• Own and drive the backend direction of the company as one of the key technical leaders
• Design and implement new game mechanics on top of the existing PGS and contribute to core gameplay engine development
• Architect scalable, secure, and high-performance backend services using Node.js and TypeScript
• Work closely with Game Logic, Frontend, and DevOps teams to ensure seamless integrations and platform-wide consistency
• Define backend engineering standards and enforce best practices across code quality, architecture, and performance
• Design and maintain backend infrastructure including schemas, caching, messaging flows, microservices, and gateways
• Participate in roadmap planning, technical decision-making, and architectural discussions
• Support rapid product and engineering growth as the platform scales

• 5+ years of backend development experience with ownership of complex systems or features
• Strong expertise with Node.js and TypeScript, modern frameworks like Fastify and Nest.js
• Advanced knowledge of SQL and NoSQL databases: PostgreSQL, MongoDB, Redis
• Solid experience with message brokers such as RabbitMQ or Kafka
• Deep understanding of distributed systems, microservices, and real-time communication technologies like WebSocket and Socket.io
• Experience building high-performance APIs, async flows, caching strategies, and scalable architectures
• Proficiency with CI/CD, Git, automated testing with Jest, and monitoring tools like Grafana, Loki, and Tempo
• Nice to have: PHP/Laravel knowledge, AWS/Docker/Kubernetes experience, RNG or iGaming platform integration experience

Schedule & Location: Fully remote, work from anywhere. Flexible schedule with start time between 08:00-12:00 CET.

Benefits:

• 21 vacation days + 5 extra day-offs annually
• 12 paid sick days
• Fixed budget for health insurance and gym/fitness
• All required work equipment provided
• Zero bureaucracy with direct communication to founders and C-level
• Minimal meetings with async-friendly workflow
• Startup environment with fast motion and tight-knit communication
• Business trips and team meetups several times per year
• Multiple salary payout options
• Additional perks unlocked after break-even