Java Web3 Jobs in New York, New York, United States
313 jobs found
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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Altusmeus | New York, NY, United States | $114k - $127k | |||
Chainalysis | New York, NY, United States | $190k - $220k | |||
Polymarket | New York, NY, United States | $106k - $110k | |||
Chainalysis | New York, NY, United States | $108k - $205k | |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. | | by Metana Bootcamp Info | |||
AAA Global | New York, NY, United States | $122k - $240k | |||
Polymarket | New York, NY, United States | $84k - $110k | |||
Albert Bow | New York, NY, United States | $91k - $109k | |||
Chainalysis | New York, NY, United States | $180k - $205k | |||
Eliassen Group | New York, NY, United States | $172k - $190k | |||
IntePros | New York, NY, United States | $81k - $96k | |||
Triveni IT | New York, NY, United States | $153k - $192k | |||
Keyrock | New York, NY, United States | $112k - $156k | |||
eNGINE | New York, NY, United States | $144k - $192k | |||
Bitwise Asset Management | New York, NY, United States | $200k - $300k | |||
Chainlink Labs | New York, NY, United States | $175k - $240k |
***********Client is not sponsoring any VISA*********
*********Please don't apply if you are on H1B or on OPT visa***********
Blockchain Developer – Job Description
Role Overview
We are looking for a Blockchain Java Backend Developer responsible for designing, developing, and maintaining backend services that interact with blockchain networks. The ideal candidate should have strong experience in Java backend development, distributed systems, and blockchain technologies such as Ethereum or Hyperledger Fabric.
Key Responsibilities
- Design and develop secure, scalable backend services in Java to interact with blockchain networks.
- Build RESTful APIs and microservices to support blockchain-based applications.
- Develop and integrate smart contracts using blockchain platforms such as Ethereum or Hyperledger Fabric.
- Implement transaction processing, wallet integration, and blockchain node communication.
- Ensure security, cryptography, and data integrity in blockchain applications.
- Optimize system performance for high-throughput distributed environments.
- Collaborate with frontend developers, DevOps teams, and blockchain architects.
- Write unit tests, integration tests, and documentation.
- Participate in architecture discussions and code reviews.
Required Skills & Qualifications
Technical Skills
- Strong experience with Java backend development (Java 8+).
- Experience with frameworks such as Spring Boot or Spring Framework.
- Hands-on experience with blockchain platforms like
- Ethereum
- Hyperledger Fabric
- Corda (optional).
- Experience with smart contracts (e.g., Solidity).
- Knowledge of cryptography, consensus mechanisms, and distributed ledgers.
- Experience building REST APIs and microservices.
- Familiarity with Docker, Kubernetes, and cloud platforms.
- Experience with relational or NoSQL databases.
Preferred Skills
- Experience with Web3 libraries such as Web3j.
- Knowledge of DeFi, NFTs, or token standards (ERC-20 / ERC-721).
- Experience with CI/CD pipelines and DevOps practices.
- Understanding of event-driven architecture and messaging systems.
Education
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.