Senior Blockchain Engineer — Remote-First & Growth-Focused

UseBlocky; New York (NY); On-site; USD 180,000 - 200,000; Full time

Benefits offered by this job

Remote-first

Competitive salary

Learning budget

Home office stipend

Job summary

UseBlocky is seeking a Senior Blockchain Engineer in New York, NY for designing, developing, deploying smart contracts, and building scalable dApps with secure Web3 infrastructure. You will collaborate with product managers, designers, and engineers to deliver decentralized solutions for clients, both on-chain and off-chain integrations.

Required 5+ years software development and 3+ years blockchain experience, strong Solidity, Ethereum/EVM knowledge, and familiarity with Web3.js or Ethers.js.

Qualifications

• 5+ years of software development experience.
• 3+ years of blockchain development experience.
• Strong proficiency in Solidity and smart contract development.
• Experience with Ethereum and EVM-compatible blockchains.
• Familiarity with Web3.js, Ethers.js, or similar libraries.
• Strong understanding of blockchain architecture, consensus mechanisms, and cryptography fundamentals.
• Experience using Hardhat, Foundry, Truffle, or similar development frameworks.
• Proficiency in JavaScript/TypeScript.
• Experience with Git and modern software development workflows.
• Strong debugging, problem-solving, and analytical skills.

Responsibilities

• Design, develop, and deploy smart contracts for blockchain applications.
• Build and maintain decentralized applications (dApps).
• Develop and integrate blockchain APIs, wallets, and Web3 infrastructure.
• Conduct smart contract testing, auditing, and security reviews.
• Optimize blockchain solutions for performance, scalability, and gas efficiency.
• Collaborate with frontend and backend developers to integrate blockchain functionality.
• Participate in architecture discussions and technical decision-making.
• Monitor deployed smart contracts and blockchain systems.
• Research emerging blockchain technologies, protocols, and industry trends.
• Document technical specifications, workflows, and implementation details.
• Troubleshoot and resolve blockchain-related issues in production environments.

Skills

Solidity

Smart contracts

Blockchain architecture

Cryptography

Debugging

Analytical skills

Tools

Hardhat

Foundry

Truffle

Web3.js

Ethers.js

JavaScript

TypeScript

Git

Job description

UseBlocky is seeking a Senior Blockchain Engineer in New York, NY for designing, developing, deploying smart contracts, and building scalable dApps with secure Web3 infrastructure. You will collaborate with product managers, designers, and engineers to deliver decentralized solutions for clients, both on-chain and off-chain integrations.

Required 5+ years software development and 3+ years blockchain experience, strong Solidity, Ethereum/EVM knowledge, and familiarity with Web3.js or Ethers.js.