backend developer in blockchain infrastructure

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• Design and implement blockchain infrastructure from scratch.

• 5+ Years of professional software engineering experience;
• Strong production experience with Go or Node.js/TypeScript;
• Proven experience designing and building scalable backend systems from scratch;
• Strong understanding of distributed systems, REST APIs, and event-driven architecture;
• Strong experience with PostgreSQL and/or MongoDB, including data modeling and optimization;
• Hands-on experience with Redis and message queues such as RabbitMQ or Kafka;
• Strong experience with Docker, CI/CD, and AWS or Azure;
• Production experience with Ethereum and EVM-compatible blockchains, including L2 solutions;
• Deep understanding of blockchain architecture, transaction lifecycle, wallets, token standards, and on-chain data;
• Experience integrating and working with blockchain nodes, RPC providers, and indexing services;
• Hands-on experience with ethers.js, web3.js, viem, Foundry, or Hardhat;
• Strong practical experience with Solidity and smart contracts, including testing and integration;
• Strong understanding of blockchain security and cryptographic best practices;
• Experience owning architecture and leading complex technical initiatives;
• Strong problem-solving skills and ability to provide technical direction and mentor other engineers.

• Projects for clients such as PayPal, Wargaming, Xerox, Philips, Adidas, and Toyota;
• Competitive compensation that depends on qualifications and skills;
• Career development system with clear skill qualifications;
• Flexible working hours aligned with your schedule;
• Corporate medical insurance covering services of private and public medical centers;
• Online English courses;
• Corporate parties and events for employees and their children;
• Internal conferences, workshops, and meetups for learning and experience sharing;
• Gym membership compensation;
• 5 Days of paid sick leave per year with no obligation to submit a sick-leave certificate.