STON.fi is a decentralized exchange (DEX) built on TON Blockchain smart contracts, enhanced with advantages such as low fees, low slippage, super user-friendly interface and direct integration with the TON wallet.

STON.fi:

— implements one of the main features of cryptocurrencies — it facilitates financial transactions without any involvement of banks, brokers or any other traditional intermediaries;

— utilizes the TON blockchain and is a natural part of TON DeFi’s growing suite of tools that make a huge range of financial services available directly from the TON cryptocurrency wallet.

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We are looking for a new frontend team member who will be immersed in the process of working with TON Blockchain and its unique features; will help the present team in bringing new complicated business scenarios to life and upgrading the current application. That is a very interesting role because you will deal with new standards of the blockchain that emerge every month while developing the app that is already live and has a very big userbase - so naturally there are a lot of challenges for engineers to jump into.

What you’ll do:

— Immerse in the context of business requirements and operation of the application scenarios; communicate in an open community of users and partner developers.

— Produce typescript code that is easy to read, testable, supported, and framework independent.

— Be responsible for a critical functionality that influences people a lot.

— Build interfaces with mobile first approach and accurately following the design requirements.

— Write unit test using vitest, e2e and integration tests using cypress.

— Optimize application performance: deal with profiling, analysis and reduction of problem spots, refactoring.

Requirements:

— Strong knowledge of javascript (ES6+), typescript.

— Ability to make adaptive interfaces using css/sass.

— Expertise with the react framework and its ecosystem.

— Location that is close to CET timezone, as that's where most of the team is and most of the work is getting done.

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Bonus Skills:

— Experience with frameworks other than React.

— Expertise with themization and localization implementation.

— Experience in developing and supporting CI/CD workflows with gitlab and docker as well as maintaining versioned application releases.

Our stack:

Frontend:

— react@18 (react@19 migration in plans).

— react-router (currently - library mode. framework mode or @tanstack/router migration in plans).

— @tanstack/react-query.

— @tonconnect/ui.

— @radix-ui.

— tailwindcss.

— Toolchain:

— pnpm.

— tsup / vite (depends on package scale).

— vitest.

— biome (formatter only).

— eslint.

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If you feel that’s a role for you - fill in the application and let’s meet!