Solidity engineers who ship contracts that can't be patched later.
Gas, reentrancy, upgradeability, and the on-chain boundary most teams get wrong, handled by engineers who've deployed audited contracts to mainnet, not just to a testnet.
What "knows Solidity" means here
Depth, not a list of buzzwords.
Six calls we make on every contract we ship. Open any one, each is a decision our engineers make and can defend on a deployed, audited system, not a line on a CV.
01 · Audited
Written to be audited, not just to compile.
Checks-effects-interactions, explicit access control, and no clever assembly where plain Solidity reads clearer. Code an auditor can follow the first time, because after deploy there's no hotfix.
02 · Gas
Gas is a budget, measured on every change.
Storage packed, loops bounded, and a gas snapshot in CI. A change that quietly makes a function more expensive fails the build, before it costs your users on every call.
03 · Upgrades
Upgradeable only where it's a deliberate choice.
Immutable by default. Where upgradeability is genuinely needed, it's a UUPS or transparent proxy with reserved storage gaps and an upgrade behind a timelock, not a surprise admin key.
04 · Exploits
The classic exploits are written as failing tests first.
Reentrancy, integer overflow, unchecked calls, access-control gaps, the well-known failure modes are written as attack tests that stay red before the fix and green after.
05 · Testing
Invariants that hold across a hundred thousand fuzz runs.
Property-based tests with Foundry, 'the vault is always solvent', 'supply never exceeds the cap', fuzzed across a hundred thousand runs, not three happy-path cases.
06 · Boundary
On-chain for truth. Off-chain for everything heavy.
The chain holds state and settlement; indexers, subgraphs, and off-chain workers handle the heavy reads. The boundary is drawn on purpose, so gas pays only for what has to be trustless.
Ecosystem awareness
We track what actually changes in this stack.
Pick the situation you're in. These are the scenarios we get asked about most.
Solidity / EVM
We build with Foundry as the default, fast Solidity-native tests, fuzzing, and gas snapshots, with Hardhat where a project's tooling already lives there. Latest stable compiler, explicit pragma, and no leftover experimental features.
L2s and rollups
We deploy across EVM L2s, Arbitrum, Base, Optimism, and know where they differ: gas semantics, block times, and bridge assumptions. The same contracts, tuned per chain, not copy-pasted and hoped for.
DeFi and tokens
ERC-20, ERC-721, ERC-1155, and ERC-4626 vaults built on audited OpenZeppelin bases, token systems, staking, and DeFi primitives with the standard's edge cases handled, not just the happy path.
Audits and verification
We write for the audit from day one and work with your auditors through it, Slither and Mythril in CI, formal verification where the stakes justify it, and every finding tracked to a fix before mainnet.
How hiring works
Four steps to a developer who's shipped this stack.
Tell us your stack and scope
Target chain, contract scope, greenfield or existing protocol, timeline.
We match a developer
Someone who's actually shipped your scenario, usually within 5 days.
Technical trial or pairing
A real ticket or a pairing session on your codebase, not a whiteboard puzzle.
Start shipping
They join your repo and workflow and commit in week one. Scale monthly.
Straight talk
We won't put an engineer on a contract holding real funds who's only shipped to a testnet. If we don't have the right fit available, we'll tell you, and point you somewhere honest, instead of stretching someone thin across three protocols and hoping the audit comes back clean.
FAQ
Solidity and blockchain, specifically.
Either. Most of our contract work is joining an existing protocol, we read the code, match your conventions, and ship inside your existing patterns before proposing any changes. Greenfield is welcome too; we just won't rebuild something that already works to scratch an architecture itch.
Yes. They work in your repo, your branching model, your CI, and your review process. Pull requests get reviewed by your team the same as anyone else's, and you own the code from the first commit.
Both. We write for the audit from the start, run Slither and Mythril in CI, and work directly with your audit firm, tracking every finding to a fix and a re-review before anything touches mainnet.
Both. If you already have an opinion, Base, Foundry, a specific token standard, we build to it. If you don't, we'll recommend a chain and toolchain for the use case and explain the trade-offs so you can sign off, rather than deciding silently.
The trial period is on us. If it isn't working, you don't pay for it and we match you with someone else, or we part ways. No lock-in, month-to-month after the first month.
Solidity seat?
Ready to hire.
Send the JD. Vetted Solidity CVs in 48 hours, trials this week, on your contract sprint.