---
title: Senior Web3 Engineer (Node.js + Solidity) at Undisclosed (startup, possibly US-based)
description: #vacancy #fulltime #openposition #job #itcareer #itjob
---

# Senior Web3 Engineer (Node.js + Solidity)

**Company:** Undisclosed (startup, possibly US-based)  
**Location:** EU, Georgia  
**Posted:** 2026-10-29  
**Apply by:** 2026-12-13

**Tags:** typescript, node.js, backend

[Apply / View original posting](https://t.me/Pol_relocation/59144)

## Job description

#vacancy #fulltime #openposition #job #itcareer #itjob

Contact - @svidinskaya
**__Workload —__** Full-time
**__Duration —__** Long-term
**__Location —__** EU, Georgia

We are looking for a **Senior Web3 Engineer (Node.js + Solidity)**

Client. Startup, possibly US-based. Company name isn't disclosed yet. They're building a DeFi platform on EVM, basically a DEX: liquidity pools, staking and farming, swaps. Contracts are based on a Uniswap v2 fork.
Format. One engineer, full-time, hourly contract. Works in the client's repos and follows their process. The client wants to onboard ASAP.
Timezone. Not known yet, including how many hours of overlap they need.
Must-haves:
Senior backend on Node.js / TypeScript
Solidity: has written and modified contracts, not just called them. Experience in both backend and smart contracts is important
Knows Uniswap v2 mechanics: pairs, router, factory, liquidity and fee calculation
Backend–contract integration via direct RPC (ethers.js or viem): reading events, handling transactions, reorgs
English good enough for a technical interview (interview format not known yet)
Nice-to-haves:
Staking and farming contracts in MasterChef style
Contract testing and audit prep (Hardhat or Foundry)
Production DeFi experience
English- B2+

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