Lead Game Developer (C++)

🏷️Title: Lead Game Developer (C++)

👫Department: Engineering

📍Location: Remote within EU/UK

About Block Labs

Block Labs is a leading force in the Web3 space, incubating, investing in, and accelerating top-tier fintech, crypto and iGaming projects. With a mission to shape the future of decentralized technology, we partner with visionary startups to raise funding, refine product-market fit, and grow their audiences. Our diverse team drives innovation, using deep industry expertise and an extensive network to empower the next wave of blockchain-driven companies. At Block Labs, we’re passionate about turning bold ideas into breakthrough success.

About The Role

We’re looking for a Lead C++ Game Developer to help evolve our core game platform by implementing new game variants, building innovative features, and modernizing our C++ codebase toward a modular, service-oriented architecture. You’ll work on real-time systems with a strong focus on reliability, performance, and scalability.

This is a hands-on opportunity to shape the future of high-volume game operations in a real-time environment with meaningful impact.

Key Responsibilities

• Enhance and maintain core game logic including hand evaluation, betting flows, pot management, and tournament rules in a large-scale C++ codebase.
• Implement new game variants and features in collaboration with game designers, ensuring accurate rulesets, fair play, and seamless integration into the platform.
• Modernize legacy systems by designing modular, service-oriented components with clean APIs, introducing gRPC-based interfaces where appropriate.
• Improve performance and scalability of the game engine and supporting systems, with attention to multi-threaded logic, game state efficiency, and server stability under load.
• Write testable, production-grade code and contribute to QA efforts with robust unit, integration, and service-level testing for game-critical logic.
• Collaborate cross-functionally with Frontend developers, Product Owners, Platform Engineers, and QA to deliver features from concept to deployment with high reliability and clear documentation.
  
  

About You

• 6+ years of experience in game backend development, with strong proficiency in C++.
• Deep understanding of game mechanics, including betting structures, state synchronization, and tournament logic.
• Experience with multiplayer poker game logic and tournament structures is a strong plus.
• Proven experience working with legacy codebases and incrementally refactoring toward modern architectures.
• Comfortable with multi-threaded development, performance tuning, and memory management.
• Experience designing or consuming service-oriented APIs (e.g., gRPC, REST).
• Familiarity with game server architecture, concurrency models, and networking fundamentals.