We are looking for a Senior Backend Engineer to develop cross-chain solutions, refine the Fusion algorithm, work with Aggregation Protocol, and trading services.

Responsibilities:

• development of backend APIs and libraries using Node JS (TypeScript) + NestJS framework;
• design scalable and cost-efficient services for trader actors in DeFi: users and external/in-house bots
• work closely with smart contracts developers
• working with EVM blockchains
• monitor system performance (Grafana, Grafana Cloud Logs, Prometheus);
• writing unit/integration/e2e/stress tests

Requirements:

• backend development experience in NodeJS in production;
• confident knowledge of TypeScript / JavaScript;
• advanced understanding of EVM and L2s blockchains (Node RPC API, state-machine, ABI encoding, callstack traces reading);
• deep knowledge of how DeFi protocols work at the smart contract level
• having experience with Kubernetes and Docker;
• Deep understanding of network protocols: WebSocket, http

Details:

• Experience: 4 years
• Node.js - 4 years
• NestJS - 4 years
• EVM blockchains - 3 years
• TypeScript - 3 years
• DeFi protocols - 3 years
• Solidity - 3 years
• Hardhat - 3 years
• Postgres - 3 years
• Redis - 3 years
• English - Upper Intermediate
• Russian - Upper Intermediate

Qualifications:

• Must have: NestJS (NodeJS + TypeScript), Solidity, Hardhat (or Truffle), microservices pattern, Postgres, Redis, message queues, EVM blockchains experience
• Good to have: Solidity, Vyper, Flashbots, DuneAnalytics, Tenderly; Hardhat/Foundry, Knowledge in trading bots/HFT, web3/ethers libs

Terms:

• Remote work, flexible hours (our team is distributed around the world).
• Young creative team, vibrant environment, and adequate leadership.
• Suggestions welcome: propose an idea and execute it.
• Competitive remuneration based on a candidate’s skills and experience.
• Work for a leader in its segment.
• Compensation for work equipment.
• Annual team building event at an international resort