| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Belmont Lavan | United States | $54k - $87k | |||
Belmont Lavan Ltd | United States | $54k - $87k | |||
Odiin. | San Francisco, CA, United States | $98k - $100k | |||
OpenZeppelin | Remote | $76k - $85k | |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. | | by Metana Bootcamp Info | |||
OpenZeppelin | Remote | $105k - $180k | |||
OpenZeppelin | Remote | $105k - $180k | |||
Kraken | United States | $127k - $203k | |||
Bondex | Remote |
| |||
OpenZeppelin | Remote | $105k - $180k | |||
Ephemera | Remote | $235k - $275k | |||
SMASH | San Jose, CA, United States | $96k - $112k | |||
SMASH | San Jose, CA, United States | $72k - $100k | |||
OpenZeppelin | Remote |
| |||
OpenZeppelin | Remote | $105k - $228k | |||
EPS Consultants | Manila, Philippines | $45k - $72k |
We are seeking an experienced Blockchain / Web3 Developer who will design, build, test and deploy smart contracts, integrate them with front-end and back-end systems, and ensure high standards of security, performance, and usability. You will collaborate with product, UX, frontend, and backend teams to deliver production-ready features, contribute to architecture decisions, and continuously improve our Web3 stack.
Key Responsibilities
- Design, write, and deploy secure smart contracts
- Implement token standards (ERC-20, ERC-721, ERC-1155) and upgradeable contracts using libraries like OpenZeppelin
- Optimise contracts for gas usage, performance, and security, including audits and peer reviews
- Integrate Web3 libraries with front-end applications and wallets
- Develop backend services / APIs that interact with on-chain and off-chain data.
- Work with Layer 2 / roll-ups / scaling solutions, bridges, and/or cross-chain integrations where required
- Write automated tests, maintain CI/CD pipelines, and ensure robust coverage and code quality
- Maintain clear technical documentation, and mentor more junior engineers
- 5 - 8+ years experience in blockchain / Web3 development
- Strong Solidity skills; experience with EVM chains; familiarity with non-EVM is desirable
- Proficiency in Web3 tools: Hardhat, Truffle, Foundry, etc.
- Experience with front-end technologies (React, Next.js )and backend
- Good grasp of REST / GraphQL APIs, database work (SQL / NoSQL), and decentralised storage
- Solid understanding of Web3 security best practices
- Ability to work in an agile, collaborative team; good communication skills in English
- Experience with gas-efficient contract design and Layer-2 roll-ups
- Prior exposure to zero-knowledge proofs, account abstraction, or decentralised identity (DID) systems
- Open source contributions or code samples / portfolio of deployed smart contracts or projects
- Experience in marketplace / escrow / auction mechanics
What is OpenZeppelin?
OpenZeppelin is a widely-used open-source library of reusable smart contracts for building decentralized applications (dApps) on various blockchain platforms, including Ethereum, Binance Smart Chain, and others
The library provides a set of secure and audited building blocks, such as ERC-20 and ERC-721 tokens, multi-sig wallets, access control, and more, that developers can use to create smart contracts quickly and easily without worrying about common security pitfalls
OpenZeppelin is used for building secure and audited smart contracts on various blockchain platforms, such as Ethereum and Binance Smart Chain
The library provides a set of pre-built and reusable smart contract modules that can be easily integrated into decentralized applications (dApps)
These modules include standard tokens, like ERC-20 and ERC-721, as well as modules for access control, voting, crowdsales, and more
OpenZeppelin is used for building secure and audited smart contracts on various blockchain platforms, such as Ethereum and Binance Smart Chain
The library provides a set of pre-built and reusable smart contract modules that can be easily integrated into decentralized applications (dApps)
These modules include standard tokens, like ERC-20 and ERC-721, as well as modules for access control, voting, crowdsales, and more
OpenZeppelin is commonly used by developers to create secure and reliable smart contracts for a variety of use cases, including decentralized finance (DeFi), non-fungible tokens (NFTs), and other blockchain-based applications
The library is designed to simplify the development process by providing well-audited and tested code that can be easily customized to suit specific needs.