Openzeppelin Web3 Jobs in Europe

23 jobs found

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Job Position Company Posted Location Salary Tags

MetaWealth

Bucharest, Romania

$81k - $87k

Nexus Mutual

London, United Kingdom

$87k - $87k

cLabs

Remote

$87k - $87k

Kiln

Paris, France

$90k - $100k

OpenZeppelin

Americas or EMEA

$72k - $100k

OpenZeppelin

Americas or EMEA

$72k - $115k

OpenZeppelin

Americas or EMEA

$72k - $150k

OpenZeppelin

Americas or EMEA

$72k - $115k

OpenZeppelin

LATAM / EMEA

$63k - $100k

OpenZeppelin

EMEA

$84k - $90k

eBay

Manchester, United Kingdom

$72k - $84k

cLabs

Berlin, Germany

$84k - $150k

NSFW

United Kingdom

$75k - $90k

Vision One

Paris, France

$72k - $90k

Daoism Systems UG

Berlin, Germany

$60k - $130k

MetaWealth
$81k - $87k estimated
Bucharest
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Senior Blockchain Engineer - Solidity

London / Bucharest / Kiew
Product & Engineering – Product /
Remote/Europe Based Only /
Remote

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We are looking for an Senior Blockchain Engineer  to help design and develop secure, efficient, and scalable smart contracts for our Real-World Asset (RWA) protocol. You will play a key role in building DeFi functionalities, staking mechanisms, liquidity management, and DAO governance. This role requires experience in Solidity, Hardhat, Foundry, OpenZeppelin, and gas-optimized smart contract development.

Responsibilities

    • Develop secure and efficient smart contracts in Solidity for an RWA protocol
    • Write comprehensive tests using Foundry, Hardhat, and JestAudit and optimise smart contracts to identify and mitigate potential security vulnerabilities
    • Build client libraries (ethers.js, web3.js) to enable easy integrationsImplement gasless transactions
    • Collaborate closely with backend and product teams to integrate smart contracts into the broader system
    • Stay updated with the latest EVM advancements, security best practices, and DeFi innovations

Tech Stack

    • Smart Contract Development: Solidity, Hardhat, Foundry, OpenZeppelin
    • Blockchain Development: EVM-based chains
    • Libraries & Testing: ethers.js, web3.js, Jest
    • Security & Optimization: Gas optimisations, smart contract security, EIP-3009

Qualifications

    • 3+ years of experience developing EVM-based smart contracts
    • Strong knowledge of Solidity, Hardhat, and Foundry
    • Experience working on DeFi, RWA, staking, liquidity pools, and DAOs
    • Deep understanding of gas optimisations and security best practices
    • Familiarity with ERC-20, ERC-721, ERC-1155, and EIP-3009 for gasless transactions
    • Ability to write secure and well-documented smart contracts
    • Experience with auditing smart contracts and working with security firms

Nice to Have

    • Experience with bridges and Layer 2 scaling solutions
    • Knowledge of cross-chain communication
    • Familiarity with on-chain KYC mechanisms
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