Hire Blockchain Developers for Smart Contract Development

Cortance is a hiring platform that matches companies with vetted remote blockchain developers from its own network, across Europe, Latin America and Asia. Tokenised funds from BlackRock and tokenised trading pilots at DTCC show blockchain moving from the whitepaper stage into production systems that banks, exchanges and gaming studios deliver under hard deadlines. There, a bug is not merely a bad review: it means lost funds. Finding developers who can build and secure those systems is the harder part.

Our AI-powered matching system reviews your requirements and returns a shortlist within 30 minutes, so you are not limited to whatever talent happens to be available in your own time zone. Every candidate passes our five vetting stages, with the technical assessment run as a live protocol or code review, so you skip the unverified Web3 freelancers and endless job-board searches. You see verified profiles and rates upfront, typically $35 to $60 an hour for middle to senior engineers, with security-focused specialists toward the top of that range, before any interview.

Our talent pool spans Solidity, Rust, Ethereum and EVM-compatible chains, Solana, Polygon, BNB Chain, and Hyperledger, as well as frameworks including Hardhat, Truffle, Remix, Web3.js, and Ethers.js. Most engineers in our network pair a primary EVM language with at least one secondary chain or systems language, an important combination when a roadmap extends beyond a single-chain MVP.

Security review is part of our vetting bar, not an add-on. Smart contract engineers in our network are evaluated on vulnerability assessment, gas optimization, and upgrade patterns, on top of the DeFi protocols, exchanges, DAO infrastructure, and NFT platforms they have already shipped in production. A number of them also run AI-assisted static analysis as a first pass, catching reentrancy risks and gas inefficiencies before a human reviewer opens the file, which shortens audit turnaround on larger contracts without cutting corners on the manual review that catches what tooling misses.

Engineers behind our Blockchain network

1. Ilya B., Senior Blockchain Engineer with 6 years in the field, core skills in Solidity and Ethereum plus working Rust experience, active across DeFi protocols, smart contract architecture, and AI-driven systems, a cross-domain background that suits DeFi products with algorithmic components.
2. Alexandros Ath., Senior Blockchain Engineer based in Greece with 7 years of experience, Solidity as a core skill alongside working Rust experience, and a background in the Blockchain and Cryptocurrency industry.
3. Oleksandr D., a verified Senior Full-Stack developer with 17 years of overall engineering experience, confirmed Blockchain and Fintech industry work, and hands-on Ethereum integration in larger product builds rather than isolated contracts.
4. Oleh Ch., Blockchain Software Developer based in Kyiv, pairs a Solidity core skill with working Rust experience, useful when a build needs both EVM contracts and a non-EVM chain such as Solana in the same codebase.

With Cortance, you can assemble:

1. A dedicated Blockchain team to carry a dApp, DeFi product, or NFT platform from architecture to launch;
2. A single senior smart contract engineer to design tokenomics, review protocol security, and audit existing contracts;
3. Blockchain staff augmentation to speed up delivery on a wallet, exchange, or bridge feature already in progress.

Still scoping the role itself? Our guide on how to hire a blockchain developer breaks down the four blockchain specialisations and the interview rounds that separate production engineers from portfolio projects.

Share your requirements, and Cortance will send a shortlist of matched Blockchain developers within 30 minutes.