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Role: Web3 & Blockchain Engineer
Location: NY/NJ- Hybrid
Fulltime Position
Qualifications / Experience
- Bachelor's degree in Computer Science, Engineering, or a related discipline; MS is a plus
- 8+ years of overall software engineering experience, with a strong backend development foundation
- 2 to 4 years of hands-on experience in Web3 and blockchain application development, including smart contract development and blockchain protocol integration
- 3 to 5 years of experience with backend development using Java/Spring, Node.js, or equivalent enterprise frameworks
- Proficiency in Solidity smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices
- Hands-on experience with Web3 libraries such as Web3J, Web3JS, Ethers.js, or Viem
- Solid understanding of blockchain fundamentals — consensus mechanisms, transaction lifecycle, gas models, wallet infrastructure, and key management
- Experience with token standards (ERC-20, ERC-721, ERC-1155, ERC-3525, or equivalent) and tokenization patterns
- Familiarity with permissioned blockchain networks (Hyperledger Besu, Fabric, Corda, or R3) is a strong plus
- Experience with asynchronous programming, event-driven systems, and message queuing (Kafka, RabbitMQ, or equivalent)
- Familiarity with DevOps practices, containerization (Docker, Kubernetes), and CI/CD pipelines
- Understanding of cryptographic concepts — digital signatures, hashing, PKI, and secure key management — as applied to blockchain systems
- Exposure to Layer 2 scaling solutions (Polygon, Optimism, zkSync, etc.) and cross-chain interoperability protocols is a plus
- Experience in financial services or regulated industries is a plus
- Familiarity with Agile/Scrum methodologies and distributed team collaboration tools
Competencies / Skills
- Web3 Engineering Depth: Strong command of the Web3 technology stack — from smart contract development to on-chain/off-chain integration patterns and blockchain node interaction
- Backend Engineering Fundamentals: Solid grounding in enterprise software engineering — API design, microservices, data structures, algorithms, and design patterns
- Security Mindset: Awareness of common smart contract vulnerabilities (reentrancy, front-running, integer overflow, etc.) and best practices for secure on-chain development
- Curiosity & Adaptability: Genuine enthusiasm for the Web3 ecosystem and the ability to rapidly learn and apply new protocols, standards, and tooling
- Collaborative Spirit: Strong team player who communicates clearly and constructively with engineers, architects, and non-technical stakeholders
- Delivery Orientation: Ability to manage personal delivery commitments, prioritize effectively, and produce high-quality output within sprint cycles
- Attention to Detail: Rigorous approach to testing, code quality, and documentation — particularly important given the immutable nature of on-chain deployments
- Tooling Proficiency: Working knowledge of engineering tools including Git, Jira, Jenkins, Hardhat/Foundry, Docker, Helm, and observability platforms
If interested, Kindly reply with the following details to Email- [email protected]
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What does a Node.js developer in web3 do?
A Node developer in web3 is a software developer who specializes in creating and maintaining applications built on the Node.js platform and using web3 technology
Web3 is a term that refers to the collection of technologies and protocols that make up the decentralized web, also known as the Internet of value
This includes blockchain technology, peer-to-peer networking, and other technologies that enable users to exchange value and data in a decentralized manner
As a Node developer in web3, some of the responsibilities might include:
- Developing and maintaining web3 applications using Node.js
- Writing and testing code for smart contracts on blockchain platforms
- Implementing security measures to protect the integrity and confidentiality of data on the decentralized web
- Collaborating with other team members to design and implement web3 solutions
- Troubleshooting and debugging issues with web3 applications
- Staying up-to-date with the latest developments and best practices in the web3 ecosystem.