Backend Node.js Developer

We are IdeaSoft’s Ethereum-focused R&D Department — a small, fast, and relentless team building new Web3 applications from zero to one. We ship fast, break things, validate ideas, and pivot quickly.

 

Now, we are looking for a Backend Developer (Node.js) who thrives in chaos, doesn’t need Jira to get things done, and loves building new products in the Ethereum ecosystem.

 

🛠 What You’ll Do

  • Build backend logic for new Ethereum-based applications (Mini apps, DeFi, AI agents, etc.);
  • Integrate on-chain and off-chain components: smart contracts, indexers, APIs, bots;
  • Write fast and functional prototypes, iterate based on feedback, and push to production when needed;
  • Deploy and manage infrastructure (we use Docker, PostgreSQL, Redis, etc.);
  • Own what you build. If something breaks, you fix it.
     

🧠 Who You Are

  • Solid experience with Node.js, TypeScript, and building REST/GraphQL APIs (usually NestJS);
  • Comfortable with Ethereum/Web3 libraries (ethers.js, viem, etc.);
  • Experience with smart contract integrations, event listening, or building indexers is a big plus;
  • You’re fast. We don’t mean reckless. We mean you prefer to ship something in 2 days rather than perfect it for 2 weeks;
  • You can work without Jira, PMs, or daily standups. You take responsibility and move;
  • You’re resourceful, scrappy, and can Google your way through tough problems.
     

✅ Bonus Points

  • You’ve shipped a Web3 product before (even a hackathon POC counts);
  • Familiar with Uniswap V4, Farcaster, AI agents, session keys, or anything cutting-edge in Ethereum;
  • You’ve contributed to open source or written technical articles.
     

🎯 What You Get

  • Opportunity to work on bleeding-edge Ethereum R&D projects;
  • Freedom to move fast, break things, and experiment
  • Flat structure — direct feedback, no bureaucracy;
  • Option to join us at hackathons like ETHGlobal;
  • Fully remote or Lisbon-based;

 

Equity in products you help build — available depending on your involvement and performance.

Published 2 July
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