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Blockchain Developer

Pyramid

Jersey City, NJ
Blockchain Developer

Immediate need for a talented Blockchain Developer. This is a 06-12+ Months Contract opportunity with long-term potential and is located in New York, NY and Jersey City, NJ (Onsite).

Job ID:26-22143 Pay Range: $110000 - $120000/annum. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location).

Key Requirements and Technology Experience:
  • Top Skills: Web3, blockchain and Java/Spring, Node.js.
  • 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

Our client is a leading IT Industry and we are currently interviewing to fill this and other similar contract positions.

Apply
Vacancy posted 2 days ago
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