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 is a peer-to-peer trading platform where transactions are conducted directly between crypto-traders, and do not require third-party participation.

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.

We are looking for an experienced developer to build Rust backend for DeFi products on a next-gen asynchronous blockchain.

We build the backend using Rust and Tokio-based frameworks including Axum, Jsonrpsee, Sqlx, Tonic. We collect and store the data in Scylla, CockroachDB, Clickhouse.

Responsibilities:

• Implement the backend for DeFi web-applications using Rust programming language.
• Design and implement blockchain communication layer, data storage layer and API layer of web applications.
• Build reusable libraries for internal use and open source.
• Analyse & optimize performance.

Requirements:

• At least 1 year of experience as a Backend developer (at least 3 years
• for Senior Backend Developer).
• Knowledge of Rust programming language.
• Advanced proficiency in algorithms and data structures.
• Bachelor's degree in computer science, information security, applied mathematics or related.

Would be a plus:

• Experience in blockchain industry.
• Understanding of internal organization of various DeFi protocols and
• their interoperability (DEXes, money markets, synthetic assets, etc).
• Understanding design principles of distributed systems (asynchronous
• communication, consensus protocols, distributed transactions, etc.).

We provide:

• Official employment, a steady paycheck, performance-based incentives, and holiday gifts.
• Good workplace environment: flexible schedule, ability to work remotely from any place in the world or in a St. Petersburg office.
• Open corporate culture: We strive for maximum transparency in all aspects of our work processes, and we provide reasoning for all of our decisions. Each employee can openly voice their opinions with us.
• Growth and development opportunities: Our workflow allows for a great deal of experimentation and learning.