A scalable DeFi staking platform with audited smart contracts handling millions in assets — designed for capital efficiency, contract safety, and a real user experience.
Contracts, front-end, and operations were treated as one system — because in DeFi, a UX bug can be as costly as a contract bug.
Solidity contracts written to be reviewed — small surface area, invariant-first design, and property-based tests before any external audit.
Pool math worked out on paper, tested against edge cases, then implemented so accounting stays exact under partial withdrawals and slashing.
Per-share accrual math so users can claim any time without draining the pool, and gas costs stay predictable at any scale.
RainbowKit and Wagmi for connection, plus a UI layer that translates chain state, gas, and errors into language a non-crypto user understands.
Deposits routed across Ethereum, Polygon, and Arbitrum with per-chain gas estimation, so users pick the chain that fits their position size.
Operational tooling for pool parameters, reward campaigns, and pause controls, guarded by multi-sig and rehearsed runbooks.
Four phases with contract safety on the critical path from week one, not something added at the end.
Pool math, invariants, and threat model written down before Solidity. Reviewed against comparable protocols and known exploit classes.
Foundry-based development with property tests and fuzzing on the invariants, alongside a UI stub so integration issues surfaced early.
Independent audit against the frozen scope, followed by fix-and-retest cycles until the report closed without critical findings.
Deploy scripts under multi-sig, on-chain monitoring and alerting, and rehearsed incident response before any user funds arrived.
Solidity tooling, EVM chains, indexing, and the front-end libraries that make wallet UX bearable.
Product surfaces the audited contracts and cross-chain routing were designed to serve.
Open pools with per-share accrual, so any deposit size can enter and exit without dilution or gas surprises.
Permissioned vaults with multi-sig controls, off-chain reporting, and pause controls sized for treasuries.
Positions that layer additional yield sources on top of the base stake, with clear on-chain accounting per layer.
Users deposit on Polygon or Arbitrum when Ethereum gas is unfriendly, without leaving the same pool identity.
Pools whose parameters can only change through a governance vote, with the front-end reflecting the current proposal state.
Time-boxed reward boosts for target pools, with the campaign math and end date visible on-chain.
Concrete results from the engagement, taken from the audit report and post-deploy measurements.
The independent audit closed without a critical or high finding on the frozen scope before mainnet deploy.
The new pool math and claim path settled deposits and withdrawals roughly three times faster than the earlier design.
The same pool primitives run on Ethereum, Polygon, and Arbitrum, so integrations do not fork per chain.
Invariants, threat model, and audit report were resolved before user funds were ever accepted.
DeFi is unforgiving of shortcuts. We built ChainVault the way the audit path required — small surface area, tested invariants, and a UI that respects on-chain reality.
Learn more about us →External audit was scoped, run, and resolved as part of delivery — not something the client had to organize after handoff.
Foundry, Hardhat, OpenZeppelin patterns, and the specific gas and storage pitfalls that come up in staking systems.
The wallet UX and the contract behavior were designed together, so users never see contradictory state between the two.
The protocol primitives were written to run on any EVM chain, so expansion did not require a rewrite.
Practical answers on audit scope, chains, gas, and how an on-chain product like this reaches mainnet.
Ship it audited-first. We'll scope the contracts, the UI, and the audit path in one plan.
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