Most places you can hire blockchain developers sell you a résumé and a rate. You interview, you onboard, you read the pull requests, and when a contract does something it should not, you find out on a public chain.
We sell the output, not the seat. Smart contract, protocol and indexing work lands in your branch simulated, tested and ready to deploy.
That matters more on a chain than anywhere else. Off-chain, a bad write is reversed quietly. On-chain, it is public, permanent, and somebody else's argument by morning.
The work is Solidity and Rust, protocol integration, on-chain data and indexing, and the settlement and reconciliation paths that establish what actually happened.
It is the same engagement as our staff augmentation, with one difference: every path that moves value is walked before it ships, because there is no chargeback behind it.
The reconciliation discipline comes from payments. Anupam Shah ran payment infrastructure at $60M+ volume in MAS-regulated, SOC 2 / ISO 27001 environments.
Scope
Smart contracts in Solidity; protocol integration, indexers and execution paths in Rust where correctness and latency justify it; TypeScript where they do not. Blockchain developers for hire are usually sold by language.
We scope by the value path the code touches, and pick the language second.
Before any contract or payout path ships, every route by which value can leave is listed, simulated against forked mainnet state, and signed off by a person.
Reorgs, stale RPC state, decimals assumed rather than read, a retry with no idempotency key — the boring failures are the expensive ones, and they are the ones checked first.
The unit you are buying is finished, tested work. It lands in your repository with the reasoning written down, ready to deploy.
Everything is written inside your repository and assigned to you in the contract. No key material of yours is ever held by us.
The simulation harness and the reconciliation checks are yours to run after we leave, so a change six months from now can be evaluated without a phone call to us.
Contracts, integrations, indexing and the reconciliation around them. Audits, token design, fundraising, market making, custody and financial advice sit with specialist firms.
Bring the chain, the contracts and what you need built. The first call walks the paths that move value; the scope follows in writing with a fixed fee, and work lands in your repository simulated and tested.
A fixed fee against a written scope, never an hourly rate or a seat price. The scope sets the price, and it is written after the value paths have been walked with you.
Yes. A single contract is a normal engagement shape here, and often the right one.
Hire smart contract developers for one contract and you should still get the full treatment: the value paths listed, the change simulated against forked state, retries made idempotent, and a person reading the diff before it merges.
A small contract that moves value is not a small risk.
No. Writing and auditing the same code is the conflict a formal audit exists to remove. We build, harden and simulate; when a contract needs an audit, the scope names an independent firm to do it.
You own the code: it is written in your repository and assigned to you in the contract.
You hold the keys: no private key material of yours is ever in our hands, and any signing path we build hands the transaction to a signer you control.
When the engagement ends, the simulation harness and the reconciliation checks stay with you and run without us.
Because the discipline here was learned on payment infrastructure, where a wrong write has a chargeback attached. On a chain it does not, so the same habits matter more: value paths listed before code, every change simulated, retries that cannot pay twice.
Nobody before an NDA. Access is read-only until scope is signed, and you can revoke it at any time. The AI tools used on your code, and what each one retains, are listed on the governance page.
Retainers end on 30 days written notice from either side, with no minimum term. Milestone billing means you never pay ahead of delivered work.
The start date is set in the signed scope, and work begins as soon as the deposit clears.
Founder, Provingmark
Thirty minutes, no charge.
Related: Staff augmentation — the general page · What staff augmentation costs · DeFi development · AI agents for crypto · How we scope and bill · About Anupam Shah