smart contract security review
a careful second pair of eyes before you ship: manual review, the tests that find real bugs, a written report in plain english and the fixes, at a price that makes sense before (or instead of) a big audit firm.
what i build
- a threat model: who can move funds, what can go wrong, which assumptions break it
- line-by-line manual review of your contracts and their integrations
- fuzz and invariant tests that encode “this must never happen” and try hard to break it
- static analysis (slither) and symbolic checks (halmos) where they help
- a written report ranked by severity, with a fix for every finding
- audit prep: clean docs, tests and scope so a big audit costs less and finds more
why hire me
- writes the same kind of contracts every day, so knows where they break
- reports in plain english, with code fixes, not just a list of issues
- great value for small protocols, token launches and pre-audit cleanup
- honest scope: i’ll say clearly when you also need a full audit firm
see the work: the free dev tools on this site are built and run by me.
how it works
- 01 · messagea few lines about what you’re building, your chain and your timeline.
- 02 · scopea short written scope with a fixed price and dates. no hourly surprises.
- 03 · shiptested code in your repo, deployed and verified, with docs. you own all of it.
pricing
a fixed price for a written scope, agreed before any work starts. small jobs are welcome, and if your budget is tight, i’ll tell you honestly what fits and what can wait for later.
questions
is this a full audit?
it’s an independent security review by one experienced reviewer: thorough and much cheaper than a firm. for protocols holding a lot of value, i’ll recommend a full audit too, and this review makes that audit faster and cheaper.
what do i get?
a written report ranked by severity, the tests that prove each finding, and the fixes as a pull request.
how long does it take?
depends on code size: a token or a single contract is days, a small protocol one to two weeks. you get the timeline in the scope.
how much does it cost?
a fixed price, agreed before any work starts, based on a short written scope. small jobs are welcome: a single contract, a fix, a review of one file. tell me your budget and i’ll say honestly what fits in it.
how fast can you start?
usually within a few days. small scopes (a token, a fix, a review) often ship within a week; bigger builds get a timeline in the scope.
what do i get at the end?
the code in your repo, tests that pass in ci, deploy scripts, verified contracts and plain-english docs. you own everything and can run it without me.
how do we start?
send a few lines about what you’re building through the contact form or a dm on x (@0xHxxe). i reply with questions, then a scope with a fixed price and timeline.
other services
- smart contract developersolidity contracts from a spec (or a napkin) to verified mainnet code: tested hard, gas-aware and documented so your team can own it.
- dapp developerthe whole product, not just the contract: a fast next.js frontend, wallet connect that works on phones, contract calls that never confuse users, and a ui people enjoy.
- hyperliquid developerhyperevm contracts that talk to hypercore, trading tools and dashboards on hyperliquid’s api: the same work behind the free hyperliquid tools on this site.
- token & nft developertokens and nft collections done right: the contract, the mint page, the allowlist, the airdrop and the verified launch, with no surprises in the code.
- defi developerdefi that holds up under pressure: vaults, staking and integrations with the protocols you build on, with invariants tested before real money touches them.