Blockchain Developer

Pyramid Consulting, Inc; Jersey City (NJ); On-site; USD 110,000 - 120,000; Full time

Benefits offered by this job

Health insurance

401(k) plan

Paid sick leave

Job summary

Pyramid Consulting, Inc. is seeking a Blockchain Developer for a contract role located onsite in New York, NY and Jersey City, NJ.

The position requires deep backend experience and hands-on Web3 development, including smart contracts, token standards, and integration with blockchain protocols. Ideal candidates will have 8+ years in software engineering, 2–4 years in Web3, and 3–5 years backend with Java/Spring or Node.js.

Qualifications

• 8+ years of software engineering experience with a strong backend foundation.
• 2 to 4 years of hands-on Web3 and blockchain application development, including smart contract development.
• 3 to 5 years of backend development using Java/Spring, Node.js or equivalent enterprise frameworks.
• Proficiency in Solidity smart contract development and testing frameworks (Hardhat, Foundry, Truffle).
• Experience with Web3 libraries such as Web3J, Web3JS, Ethers.js, or Viem.
• Familiarity with blockchain concepts, token standards, and permissioned networks.

Skills

Web3

Blockchain

Java/Spring

Node.js

Solidity

Education

Bachelor's degree

MS preferred

Tools

Hardhat

Foundry

Truffle

Web3J

Web3JS

Ethers.js

Viem

Docker

Kubernetes

Job description

Blockchain Developer

06-12+ Months Contract opportunity with long-term potential 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.

Pyramid Consulting, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.