Backend / RGS Integration Engineer

• Own the partner GDK integration; own game-server logic and configuration
• Build the math-to-server pipeline that takes math models into production safely
• Implement certification-grade logging, transaction handling, and error/reconnect flows
• Build internal tooling for the math and dev teams, * Founding-team equity/phantom shares
• Senior salary
• 25+ days leave
• Private health insurance
• Multisport
• Hardware & training budgets
• Remote/hybrid
• Real architectural ownership

• 5+ years backend engineering, strong Node.js
• Experience with real-money gaming servers, RNG, wallet/transaction integrations
• Understanding of regulated-market technical requirements and certification
• Pragmatic, ownership-minded, comfortable being the first backend hire

Nice-to-haves

• Prior GDK/RGS or aggregator integration (Relax, Bragg-Oryx, Hub88, etc.)
• Kubernetes/cloud
• Security/ISO 27001 exposure

Open Games is a new, founder-funded B2B games studio building original, high-volatility online casino games for the real-money iGaming market. We’ll distribute through leading aggregators to operators worldwide, and we’re assembling a small, senior founding team in Bulgaria - offices in Sofia and Plovdiv, remote-friendly across the country. Our plan is deliberate: ship a tight portfolio of genuinely distinctive games, win on math and art, and grow with the people who built us. Join now and you’re not employee #200 at a corporation - you’re a founding voice with real ownership of the product.