Blockchain

Hire Solidity Developers

Solidity developers write smart contracts for Ethereum and other EVM chains, where bugs can cost real money and cannot simply be patched.

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The role

What Solidity developers do

A Solidity developer designs contracts, writes thorough tests, optimises gas usage, and follows security patterns to avoid common exploits. Contracts are hard to change once deployed, so testing and review matter more than speed.

Typical deliverables

Smart contracts for tokens, NFTs or custom logic
Unit and fuzz tests
Deployment scripts for testnets and mainnet
Gas optimisation
Preparation for an external audit

Tools you will see

Solidity
Foundry or Hardhat
OpenZeppelin
Ethers.js or Viem
Slither

Choosing

How to choose Solidity developers

What to look for

Deployed contracts you can read on a block explorer.
High test coverage, including fuzz testing.
Use of audited libraries such as OpenZeppelin.
Knowledge of common attacks like reentrancy.

Questions to ask

1How do you test contracts before deployment?
2Which security issues do you check for?
3Would this contract need to be upgradeable?
4Have your contracts been audited?

Planning

Before you post the job

Plan for an audit

Contracts that hold user funds should be audited by an independent team before launch. Budget for it.

What drives cost

Contract complexity, security requirements, testing depth and audit preparation.

Hiring on Open Lance

Posting a job and reviewing proposals are free.
Each milestone is funded into escrow before work starts and paid when you approve it.
Hire fixed-price, hourly, as a monthly Dedicated Hire, or buy a packaged Drop-In.
Client fees are shown before you pay and added on top of the work.

How escrow and approval work · Pricing

FAQ

Questions about hiring Solidity developers

Can a smart contract be changed after deployment?

Not directly. Upgradeable patterns exist but add complexity and trust assumptions.

Is one developer enough?

For building, maybe. Contracts handling money should still get independent review.

Which chain should we use?

It depends on costs, users and ecosystem. Many EVM chains share the same Solidity code.

Post a job for Solidity developers

Describe the work and compare proposals. You only fund the first milestone once you have chosen someone.

Post a job