Java Web3 Jobs in North America

1,206 jobs found

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Job Position Company Posted Location Salary Tags

deCircle

San Francisco, CA, United States

$72k - $75k

Alchemy

San Francisco, CA, United States

$135k - $290k

BitKernel

Austin, TX, United States

$175k - $240k

syncreonconsulting

United States

$85k - $95k

Blockstream

Mountain View, CA, United States

$98k - $110k

Guidehouse

United States

$149k - $248k

Token Metrics

Austin, TX, United States

$105k - $110k

Token Metrics

Houston, TX, United States

$88k - $119k

Chainlink Labs

New York, NY, United States

$175k - $240k

Dvtrading

New York, NY, United States

$77k - $105k

BitKernel

Austin, TX, United States

$91k - $180k

Trident Consulting

Irvine, CA, United States

$134k - $163k

JS Consulting Solution

Irvine, CA, United States

$72k - $80k

Swoon

San Francisco, CA, United States

$134k - $144k

Kforce Inc

Mountain View, CA, United States

$89k - $121k

deCircle
$72k - $75k estimated
CA San Francisco US
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We are hiring a Blockchain Developer to build data-driven systems and smart contracts that power risk analytics and allocation workflows in decentralized finance. You will work across on-chain and off-chain data, deliver secure Solidity contracts, and ship reliable services that integrate blockchain data with internal platforms.

What You’ll Do

  • Extract, normalize, and store data from Ethereum, L2s such as Arbitrum and Solana, plus relevant protocols.

  • Design and implement secure Solidity/EVM contracts to enable data adapters, allocation validation, and rule evaluation.

  • Build and maintain services that integrate on-chain data to internal systems and external APIs.

  • Develop robust, testable logic for event ingestion, data orchestration and state transitions.

  • Implement access controls, pausability, monitoring, and on-chain and off-chain audit trails.

  • Collaborate with product and engineering teams to design resilient, auditable, and automated financial workflows.

  • Contribute to shared libraries and improve tooling for data ingestion, validation, and analysis.


  • Strong Python proficiency for data processing, backend services, and automation.

  • Extensive hands-on experience with Solidity, EVM tooling, and DeFi integrations.

  • Practical use of The Graph (subgraphs), Alchemy or Infura, Dune or Flipside, or custom indexing tools.

  • Understanding of decentralized data models, indexing, and event-driven architectures.

  • Track record of clean, maintainable, and secure code, with thorough tests and reviews.

  • Experience owning deliverables end-to-end and working in distributed, async teams.

  • Background in fintech, data engineering, or DeFi infrastructure.

Nice to Have

  • Proficiency in C++ or Java for performance-sensitive components.

  • Experience with formal verification, bug bounty programs, or audit coordination.

  • Familiarity with time-series and relational data models.

  • Exposure to infrastructure basics such as containers and Infrastructure as Code, for example Docker and Terraform; knowledge of Kubernetes is a plus but not required.


Soft Skills

  • Clear, structured communication. 

  • Attention to detail, strong ownership, ability to break down complex problems and deliver independently while being a reliable team player. 

  • Proactive, self-directed mindset suited to a fast-evolving technical environment.

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Apply Now