Web3 Jobs in New York, New York, United States

Blockchain/web3 Engineer

Job Type: Fulltime

Salary Range: $100,000 to $130,000 per year

Location: New York, NY (Onsite)

Job Description

Must Have Technical/Functional Skills

Core Web3 / Blockchain Skills (Must-Have)

• Strong understanding of blockchain fundamentals:

o transactions, blocks, gas/fees, wallets/keys, RPC, finality, consensus basics

• Hands-on experience with smart contracts:

o 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