Senior Frontend Game Developer (Dart)

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.

As we continue to expand, we are looking for an ambitious and self-driven individual to join our rapidly growing team!

You’ll join a high-performing engineering team that values ownership, strong fundamentals, and pragmatic solutions. This role is ideal for a developer passionate about delivering smooth, interactive, and visually rich game experiences on the web using modern technologies and the Dart ecosystem.
As a Senior Frontend Game Developer, you’ll build the client-side layer of real-time games, implementing game logic, UI components, and network synchronization for both single-player and multiplayer experiences.

You’ll collaborate closely with backend engineers, designers, and UX experts to deliver responsive, performant gameplay through structured, maintainable code and efficient rendering pipelines.

• Develop and maintain frontend game logic and UI systems using Dart 3.0+

• Implement real time multiplayer features with WebSocket and protocol-based communication

• Manage state synchronization and event driven updates across sessions

• Build and optimize 2D interfaces, animations, and effects using PIXI.js or similar frameworks

• Ensure cross browser performance and responsive behaviour across devices

• Collaborate with backend teams to integrate game services and APIs

• Maintain a clean, modular codebase with clear separation of concerns

• Participate in code reviews, debugging, and performance profiling to ensure production quality

• Strong proficiency in Dart (3.0+), with experience in web development

• Good understanding of JavaScript, TypeScript, HTML5, CSS3, and Sass/SCSS

• Experience with real time networking, WebSocket, and state management patterns

• Knowledge of 2D graphics rendering frameworks such as PIXI.js

• Familiarity with responsive design and mobile web optimisation

• Understanding of protocol-based client server communication

• Experience with build tools including webdev, build_runner, and build_web_compilers

• Exposure to automated testing

• Awareness of performance optimisation, WebAssembly, or internationalisation (i18n)

• Interest in game development, animation systems, and interactive UI design

• Experience with multiplayer and/or tile-based games is a plus

What kind of culture can I expect?
Mature, mission-driven, and low-ego. We value clarity over noise, outcomes over theatrics, and pace without chaos. If you’re one of the smartest minds in your craft and want to build with other experts, you’ll feel at home here.