Blockchain Jobs in United States

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Job Position Company Posted Location Salary Tags

Tata Consultancy Services

New York, NY, United States

$100k - $130k

Referment

New York, NY, United States

$175k - $250k

Ondo Finance

United States

$140k - $240k

Perena

United States

$81k - $107k

Signature IT World Inc

United States

$77k - $84k

ThoughtStorm

United States

$77k - $84k

Covetus

New York, NY, United States

$120k

Iopa Solutions

New York, NY, United States

$200k

Bullish

New York, NY, United States

$90k - $105k

Galaxy

New York, NY, United States

$150k - $225k

Polygon Labs

United States

$125k - $159k

Kraken

United States

$72k - $145k

Groma

Boston, MA, United States

Groma

Boston, MA, United States

$57k - $72k

Groma

Boston, MA, United States

$90k - $110k

Job Description

Blockchain Web3 Engineer

Must Have Technical/Functional Skills

Core Web3 / Blockchain Skills (Must-Have)

  • Strong understanding of blockchain fundamentals:
  • transactions, blocks, gas/fees, wallets/keys, RPC, finality, consensus basics
  • Hands-on experience with smart contracts:
  • Solidity (preferred) and development tooling (Hardhat/Foundry/Truffle/Remix)

Experience working with EVM-based chains (Ethereum/Polygon/Arbitrum/Optimism/BSC)

or enterprise chains (Hyperledger Fabric/Corda/Quorum) depending on project

Roles & Responsibilities

  • Smart Contract Engineering & Web3 Development
  • Design, develop, and maintain smart contracts (Solidity/Vyper or relevant stack) aligned to product and security requirements.
  • Build backend/Web3 components for contract interaction:
  • Transaction orchestration, signature flows, nonce management, gas strategies
  • Web3 SDK integrations
  • Develop and manage contract deployment pipelines, including ABI/versioning, migrations, upgrade strategies (proxy patterns), and release coordination.
  • Implement secure patterns for contracts:
  • Support smart contract testing:
  • Node Operations & Infrastructure
  • Deploy, configure, and operate blockchain nodes and supporting infrastructure:
  • Full nodes/archival nodes, RPC endpoints, validator nodes (as applicable)
  • Manage node upgrades, chain configuration changes, and incident response for production networks.
  • Implement operational tooling for:
  • Node health checks, RPC performance monitoring, log aggregation, and alerting
  • Handle blockchain-specific reliability concerns:
  • Re-org handling, finality considerations, peer connectivity, RPC failover, rate limiting

Salary Range- $100,000-$130,000 a year

Qualifications: BACHELOR OF COMPUTER SCIENCE