Senior Frontend Game Developer, Dart

November 4

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Block Labs

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Crypto • Web 3 • B2B

Block Labs is a Web3-focused builder, investor, and marketing partner for blockchain projects. The company provides end-to-end blockchain development (smart contracts, decentralized wallets, NFT exchanges, payment gateways), web3-native marketing (social management, influencer/KOL campaigns, paid media, PR, partnerships), and investment support from seed to Series A. Block Labs works with founders to accelerate growth through technical development, go-to-market strategies, and strategic capital, operating from Sofia, Bulgaria.

51 - 200 employees

Founded 2022

₿ Crypto

🌐 Web 3

🤝 B2B

📋 Description

• 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

🎯 Requirements

• 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

🏖️ Benefits

• Health insurance • Flexible work arrangements