Senior Backend Engineer (Blockchain, Node.js, TypeScript)
1inch LabsJob Overview
We are seeking a Senior Backend Engineer to join our team at 1inch Labs, a leading software services provider in the crypto and DeFi sectors. This role involves developing cross-chain solutions, refining the Fusion algorithm, and working with the Aggregation Protocol and trading services.
Responsibilities
- Development of backend APIs and libraries using Node.js (TypeScript) and the NestJS framework.
- Design scalable and cost-efficient services for trader actors in DeFi: users and external/in-house bots.
- Collaborate closely with smart contracts developers.
- Work with EVM blockchains.
- Monitor system performance using tools like Grafana, Grafana Cloud Logs, and Prometheus.
- Write unit, integration, end-to-end, and stress tests.
Requirements
- Backend development experience in NodeJS in production environments.
- 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.
- Experience with Kubernetes and Docker.
- Deep understanding of network protocols: WebSocket, HTTP.
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.
Work Environment
- Remote work with flexible hours, allowing you to work from anywhere in the world.
- Join a young, creative team in a vibrant environment with adequate leadership.
- Your suggestions are welcome: propose an idea and execute it.
- Competitive remuneration based on skills and experience.
- Compensation for work equipment.
- Annual team building event at an international resort.
Benefits Extracted with AI
- Remote work
- Flexible hours
- Competitive remuneration
- Compensation for work equipment
- Annual team building event
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