Full-Stack Developer

Full-Stack Developer Job Title: Senior Full Stack Developer (Java / Go / C#) – iGaming B2B Platform Location: Serbia – Hybrid or Remote within Serbia Industry: iGaming / Online Casino & Sportsbook Technology Employment Type: B2B Contract Role Overview: On behalf of our client, a fast-scaling B2B iGaming & casino platform provider, we are looking for experienced Senior Full Stack Developer with a solid polyglot backend foundation ( Java, Golang, and C# / .NET ) and modern front-end capabilities to join the growing platform engineering team. In this role, you will design, develop, and scale high-throughput, low-latency B2B iGaming solutions powering casino aggregators, player account management (PAM) systems, and real-time sportsbook integrations. A deep understanding of iGaming platform mechanics such as wallet transactions, odds engines, bet settlement, and third-party game provider integrations is strictly required. Key Responsibilities: Architecture & Backend: Build and maintain scalable, distributed microservices using Java, Go, and C# (.NET Core) designed for real-time transaction processing, low-latency data feeds, and high availability. Full Stack Delivery: Develop intuitive, high-performance web frontends and internal operational tooling using modern JavaScript/TypeScript frameworks (React, Vue, or Angular). iGaming Platform Logic: Implement core casino and sportsbook features, including seamless/transfer wallet architectures, game aggregation APIs, bet lifecycle handling, odds calculation feeds, and settlement engines. Third-Party Integrations: Integrate tier-1 casino game providers (slots, live dealer), sports data providers, payment gateways, and KYC/compliance services. Performance & Concurrency: Optimize database interactions, caching layers, and asynchronous messaging pipelines to handle peak concurrent user traffic during high-profile sporting events and gaming spikes. Reliability & Testing: Ensure robust API security, regulatory compliance data handling, comprehensive unit/integration test coverage, and automated CI/CD pipeline deployments. Requirements & Experience Industry Experience: 3+ years of direct technical experience within the iGaming sector (B2B platform, aggregator, or B2C operator) . Domain Knowledge: Deep understanding of casino mechanics (RTP, RNG integration, round resolution) and sportsbook logic (odds formats, bet placement, bet slip logic, cash-out, settlement). Multi-Language Backend Mastery: Strong hands-on proficiency across Java , Go (Golang) , and C# / .NET Core , with the ability to choose the right tool for performance-critical services. Front-End Capabilities: Solid experience building responsive, responsive web applications using TypeScript and modern frameworks ( React , Vue.js , or Angular ). Language & Communication: Fluency in English (written and spoken) and based in Serbia. Nice to Have Hands-on experience with regulatory technical standards (e.g., MGA, UKGC, or Curacao technical certification requirements). Familiarity with cloud platforms (AWS, GCP, or Azure) and infrastructure as code. Experience with high-frequency transaction auditing and automated fraud detection systems. Department Tech Locations Belgrade Remote status Fully Remote About Meta Hire Group Born in Dubai, operating globally. We are specialising in HR consultancy operating at the high-velocity intersection of emerging tech, global gaming, and digital performance. With over a decade of elite expertise, we partner with visionary founders to architect the high-performance leadership teams defining the new economy. Our Specialized Verticals: - iGaming - Gaming & Interactive Media - Performance & Growth (Affiliate, SEO & Content) - Artificial Intelligence - Blockchain & Web3 - Longevity & HealthTech Founded in 2025 Applicant tracking system by Teamtailor