We are growing fast - and we invite you to grow with us. In Innowise, you can not only develop as an expert in your field, solve complex problems and influence the result, but also see how the finished project affects the world around. We are a close-knit team of professionals who have already implemented 1600+ cases for clients from the USA, Denmark, Germany, etc. We need someone, who will strengthen our team and become part of the community!

You need to have:

2–4 years of commercial experience in Solidity smart contract development
Strong knowledge and practical application of key standards, including ERC-20, ERC-721, ERC-1155, and EIP-712, with experience in customization and extension
Experience with Hardhat and/or Foundry, including deployment scripting, environment configuration, and testing
Hands-on experience using OpenZeppelin Contracts, including secure inheritance, customization, and proven design patterns
Understanding of and practical experience with proxy patterns such as Transparent Proxy and UUPS
Knowledge of common smart contract vulnerabilities and mitigation techniques, including reentrancy, access control issues, front-running, and integer overflow/underflow
Experience writing unit tests for smart contracts and basic experience with static analysis tools such as Slither and Solhint
Experience deploying contracts to testnets and mainnets, as well as working with RPC providers such as Alchemy, Infura, and similar services
Understanding of gas optimization techniques, including storage layout optimization, variable packing, calldata vs. memory usage, and eliminating redundant operations
Basic experience integrating smart contracts with backend or frontend applications using ethers.js, viem, web3.js, or similar libraries
English proficiency at B2 level or higher, including the ability to read technical documentation and communicate effectively within an engineering team

Will be a plus:

Experience working with DeFi protocols, including AMMs, staking, lending platforms, and the ERC-4626 vault standard
Experience designing staking mechanisms and tokenomics models, including emissions, reward distribution, vesting, and lock-up schedules
Familiarity with on-chain randomness solutions such as Chainlink VRF or similar verifiable randomness technologies
Familiarity with oracle solutions such as Chainlink Data Feeds, Pyth, or similar providers
Experience with RWA (Real-World Asset) tokenization, compliance standards such as ERC-3643, or DAO governance mechanisms
Experience with fuzz testing, particularly Foundry fuzz tests
Experience collaborating with smart contract auditors and participating in security reviews
Basic experience with Node.js and TypeScript for scripting, tooling, and integrations

We offer

Flexible work schedule

Experience of working with clients all over the world

Financial assistance

Medical insurance

Solidity Smart Contract Developer

PolandMiddle

You need to have:

Will be a plus:

We offer

Want to join the team?

Email us

Any questions about the job?