Web3 Developer; Remote Job Newtonville New York USA,IT/Tech

Position: Web3 Developer - Remote
At Whitechain, we’re on a mission to revolutionize blockchain, smart contracts, and cryptography. As part of the White BIT ecosystem, we’re building cutting-edge Web3 solutions, from our own EVM blockchain to non-custodial wallets, DeFi platforms, and Game Fi experiences.

We’re looking for a skilled and motivated Blockchain / Web3 Developer to help us design, build, and improve scalable blockchain products and infrastructure. If you’re passionate about decentralization, smart contracts, EVM ecosystems, and the future of digital finance, this is your opportunity to make a real impact.
The future of Web3 starts with you — join us as a Blockchain / Web3 Developer!

Requirements

3+ years of software development experience
1–2+ years of experience in blockchain, Web3, crypto, or DeFi projects
Strong experience with Solidity and smart contract development in the EVM ecosystem
Good understanding of Ethereum / EVM architecture, gas optimization, token standards, and smart contract security
Experience with Web3 tools such as Hardhat, Foundry, Remix, Meta Mask, Ethers.js, Web
3.js, Viem
Experience deploying and maintaining smart contracts on testnet and mainnet
Knowledge of DeFi: AMMs, staking, lending, bridges, oracles, stablecoins, and liquidity pools
Backend integration experience: APIs, indexers, event listeners, wallets, or transaction services
Understanding of common blockchain security risks
Experience with JavaScript, TypeScript, Python, Node.js, or similar backend technologies
Familiarity with Git, CI/CD, testing frameworks, code reviews, and documentation
English level B2+

Responsibilities

Design, develop, test, and deploy smart contracts for Whitechain and Web3 products
Build blockchain features for DeFi platforms, wallets, Game Fi, and ecosystem tools
Write secure and gas-efficient Solidity code
Create unit tests, integration tests, and deployment scripts
Integrate smart contracts with backend services, frontend apps, wallets, APIs, and blockchain infrastructure
Review existing smart contract code and suggest improvements
Support audits, security reviews, and vulnerability remediation
Monitor deployed contracts and help resolve production issues
Research new blockchain protocols, DeFi mechanics, and EVM improvements
Contribute to technical documentation and best practices

Nice to Have

Experience with L1 / L2, rollups, bridges, validators, nodes, or RPC infrastructure
Experience with audit tools such as Slither, Mythril, Echidna, Tenderly, or Open Zeppelin Defender
Knowledge of The Graph, Sub Query, custom indexers, or blockchain analytics pipelines
Experience with account abstraction, cross-chain protocols, or oracle integrations
Open-source Web3 contributions or a public Git Hub portfolio
Understanding of tokenomics, staking, governance, or protocol economics
Experience in fintech, crypto exchange, DeFi, wallet, or Web3 infrastructure companies

If you are passionate about Solidity, EVM, DeFi, and building reliable Web3 products, we would be happy to hear from you.

Solidity
Smart contract development
EVM / Ethereum
Web3 development
De Fi
Game Fi
Blockchain infrastructure
Gas optimization
Smart contract testing
Unit testing
Integration testing
Deployment scripting
Backend integration
Frontend integration
Wallet integration
API integration
Blockchain security
Smart contract audits
Vulnerability remediation
Production monitoring
Technical documentation
L1 / L2 blockchain development
Rollups
Bridges
Validators
Nodes
RPC infrastructure
Slither
Mythril
Echidna
Tenderly
Open Zeppelin Defender
The Graph
Sub Query
Custom indexers
Blockchain analytics
Account abstraction
Cross-chain protocols
Oracle integrations
Open-source Web3
Tokenomics
Staking
Governance
Protocol economics
Fintech / crypto exchange experience

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