Senior Blockchain Developer

Description:

Were seeking a Senior Blockchain Developer with deep expertise in Solidity and Node.js to design, develop, and deploy scalable blockchain solutions. Youll build secure smart contracts, architect backend APIs, and collaborate with cross-functional teams to deliver high-performance decentralized applications (dApps) and Web3 infrastructure.

Key Responsibilities

Design and implement smart contracts on EVM-compatible chains using Solidity.

Develop, test, and deploy backend APIs and microservices in Node.js for blockchain integration.

Optimize smart contract gas usage, ensure security best practices, and perform code audits.

Integrate blockchain nodes, wallets, oracles, and cross-chain bridges.

Collaborate with frontend, DevOps, and product teams to deliver complete dApp solutions.

Maintain and enhance existing blockchain architecture and SDKs.

Research new blockchain technologies (Layer-2, zk, rollups, cross-chain).

Requirements

5+ years of total software development experience.

3+ years in Solidity and EVM-based development.

Strong proficiency with Node.js, Express, and TypeScript.

Deep understanding of smart contract design patterns, ERC standards, and DeFi protocols.

Experience with Web3.js, Ethers.js, Hardhat, Foundry, or Truffle.

Knowledge of RESTful / GraphQL APIs, microservices, and event-driven architectures.

Familiarity with Ethereum, Polygon, Binance Smart Chain, or other L2 networks.

Version control with Git, CI/CD pipelines, and test automation.