Blockchain Developer

Altimetrik; Jersey City (NJ); On-site; USD 140,000 - 210,000; Full time

Job summary

Altimetrik is seeking a Blockchain Developer in Jersey City, NJ to lead backend and blockchain initiatives. You will design and ship smart contracts, integrate with Web3 libraries, and help implement secure tokenization and scalable on-chain solutions.

The role requires 8+ years of software experience, 2–4 years in Web3, proficiency in Solidity, and knowledge of modern back-end frameworks, devops, and security best practices.

Qualifications

• Bachelor’s degree in Computer Science, Software engineering or a related field.
• 8+ years of software engineering with strong backend foundation.
• 2-4 years in Web3 and blockchain app development, including smart contracts.

Skills

8+ years

Web3 and blockchain

Backend Java/Spring

Solidity

Web3 libraries

Blockchain fundamentals

Token standards

Hyperledger Besu/Fabric/Corda

Async/event-driven

DevOps Docker/Kubernetes

Crypto concepts and key management

Layer 2 scaling solutions

Financial services experience

Agile/Scrum and distributed teams

Education

Bachelor’s degree in Computer Science or related field

Job description

Altimetrik delivers outcomes for our clients by rapidly enabling digital business & culture and infuse speed and agility into enterprise technology and connected solutions. We are practitioners of end-to-end business and technology transformation. We tap into an organization’s technology, people, and assets to fuel fast, meaningful results for global enterprise customers across financial services, payments, retail, automotive, healthcare, manufacturing, and other industries. Founded in 2012 and with offices across the globe, Altimetrik makes industries, leaders and Fortune 500 companies more agile, empowered and successful.

Altimetrik helps get companies get “unstuck”. We’re a technology company that lives organizations a process and context to solve problems in unconventional ways. We’re a catalyst for organization’s talent and technology, helping teams push boundaries and challenge traditional approaches. We make delivery more bold, efficient, collaborative and even more enjoyable

Job title – Blockchain Developer

Required Skills

• 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

Basic qualifications:

Bachelor’s degree in Computer Science, Software engineering or a related field