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Crypto & Blockchain

Smart contracts built by engineers who can't afford a bug.

Smart contracts, wallets, and on-chain integrations, audited, tested against adversarial inputs, and built with the discipline that irreversible transactions demand.

Same vetting bar either way, whether we staff the project or fill the seat. See the rubric

Crypto exchange order book with bids and asks meeting at a glowing matching-engine line
Contracts

Solidity smart contracts, audited before deployment.

Wallets

Custody and wallet integrations built for real funds.

DeFi

Protocol integrations and on-chain logic.

Audits

Adversarial testing before anything touches mainnet.

What we build

What we build most on-chain.

Solidity contracts written with the assumption that every edge case will eventually be tested by an attacker, not just your test suite.

SolidityEVM chainsGas optimizationUpgradeable contracts

Adversarial testing, fuzzing, and manual review before any contract touches mainnet, the step that separates a working demo from something you can trust with real funds.

AuditsFuzzingFormal verificationMainnet review

Wallet connections and custody solutions built for real user funds, with the key-management discipline that assumption requires.

Wallet ConnectMulti-sigKey managementCustody

Protocol integrations, marketplaces, and token systems, built and audited to the standard that on-chain, irreversible transactions demand.

DeFi protocolsNFT marketplacesToken standardsOn-chain logic
What we build with

Current tools, not last year's.

Contracts
SolidityHardhatFoundryOpenZeppelin
Chains
EthereumPolygonArbitrumBase
Frontend
Ethers.jsWagmiReactNext.js
Security
SlitherFuzzingFormal verificationMulti-sig
Adjacent work

The nearest thing we've actually shipped.

Real-time dispatch platform
Web & Mobile

Real-time dispatch platform

A real-time platform demonstrating the same reliability discipline we bring on-chain.

Node.jsPostgresWebSockets
Read the case study
What clients say

On camera, in their own words.

Client video

Why he brought his development work to Code Elevator.

MikePlays here
How we run it

Scoped fast. Shipped on a real timeline.

011–2 weeksSpec and threat modelingWe define the contract's exact behavior and map the ways it could be attacked before writing a line of Solidity.
023–8 weeksDevelopmentContracts built with test coverage for every state transition, not just the happy path.
032–4 weeksAudit and adversarial testingInternal audit, fuzzing, and, for anything holding significant value, a recommendation for independent third-party audit before mainnet.
04OngoingDeployment and monitoringA staged mainnet deployment with on-chain monitoring for anomalous activity from day one.
Related services

Building something adjacent?

Questions

Answered before you ask.

Yes. Security review of existing contracts is a standalone engagement. We're direct about severity and won't soften a finding to protect a relationship.

Ethereum and EVM-compatible chains (Polygon, Arbitrum, Base) are our core focus, matched to your gas cost and ecosystem requirements.

For anything holding significant value, yes. We do our own rigorous internal audit and recommend an independent third-party audit as a second layer before mainnet deployment.

Yes. Wallet Connect, multi-sig setups, and custody integrations are standard parts of scoping, built around whatever your users or treasury already use.

What you're not risking

Every way out of this build is already written down.

You own it, from day one

Code, prompts, models and pipelines: all work-product IP assigns to you by contract from day one, not on final payment.

No vendor lock-in

Nothing is locked to us or to a proprietary platform you can't leave. You get the repository, the documentation, and full access.

Get started

Bring us the contract. We'll tell you what's realistic.

New build or audit of something already written. We'll treat it with the discipline irreversible, on-chain transactions actually require.

We reply within an hour during our working day in India and the UAE.

Chat with our team