Frontend Engineer

Tonkeeper

Software Engineering · Senior

We’re building Tonkeeper, the leading non-custodial wallet in the TON ecosystem, helping users and developers discover dApps and DeFi tools. Tonkeeper Team has also created TON API, the largest platform on TON, and Tonviewer, a top explorer for tracking transactions, tokens and NFTs. With Tonkeeper Mobile, Tonkeeper Pro, TON API and Tonviewer, we make it easy to explore and grow on The Open Network.

Our team has plenty of experience in building products for mass adoption, and high-load services, as well as in applying innovative technologies in cryptography and blockchain.

Now we are looking to expand by hiring a Frontend Engineer.

Responsibilities:

• Build and improve the web client, ensuring high performance, security, and scalability.
• Develop and support browser extensions (Chrome, Firefox, etc.) with seamless wallet integration.
• Implement complex UI/UX solutions with a strong focus on usability, responsiveness, and cross-browser compatibility.
• Collaborate closely with product, design, and backend teams to deliver end-to-end features.
• Optimize application performance, code quality, and maintainability; conduct code reviews and mentor other developers.
• Contribute to architectural decisions and continuously improve frontend development processes and standards.

Requirements:

• 5+ years of experience building client-side applications using TypeScript and React.
• Strong expertise in building complex, responsive layouts using modern CSS (Flexbox, Grid, logical properties).
• Experience with modern browser capabilities and performance techniques (Web Animations API, prefetch/preload, rendering optimization).
• Solid understanding of how browsers and the internet work (rendering pipeline, client-server communication, caching strategies).