Blockchain Senior Backend Engineer

We are looking for a Senior Blockchain Backend Engineer to join our team and take ownership of designing and implementing blockchain infrastructure from scratch. The role combines Go or Node.js/TypeScript backend development, blockchain integrations, distributed systems, and technical architecture.

Requirements

• 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 practicesExperience owning architecture and leading complex technical initiatives;

• Strong problem-solving skills and ability to provide technical direction and mentor other engineers.

We can offer:

• Projects for such clients as PayPal, Wargaming, Xerox, Philips, adidas and Toyota
• Competitive compensation that depends on your qualification and skills
• Career development system with clear skill qualifications
• Options to work remotely
• Compensation for medical expenses
• English courses online
• Corporate parties and events for employees and their children
• Internal conferences, workshops and meetups for learning and experience sharing
• Gym membership compensation, corporate sport competitions (cybersport included)
• 5 days of paid sick leave per year with no obligation to submit a sick-leave certificate