Blockchain & Web3
Blockchain work that survives an audit
Smart contracts, tokenisation and on-chain integrations built to a written specification, tested adversarially, and handed over with the audit trail your counterparties will ask for.
The problem
On-chain mistakes are permanent and public
Ordinary software can be patched on a Tuesday. A deployed contract holding real value cannot. We treat blockchain work as safety engineering: a written specification before any code, invariant and fuzz testing, an internal review against the known exploit classes, and a third-party audit before mainnet. If a chain is not the right tool for your problem, we will say so before you spend.
What is included
From feasibility through to mainnet
01
Feasibility and architecture
An honest assessment of whether distributed ledger technology actually solves your problem, which chain fits, and what it costs to run — before any commitment.
02
Smart contract development
Solidity and Rust contracts on EVM chains and Solana, written against a specification with full NatSpec documentation and a reproducible build.
03
Testing and audit preparation
Unit, invariant and fuzz testing, static analysis, gas profiling and a documented threat model — so the external audit finds nothing expensive.
04
Tokenisation and digital assets
Fungible and non-fungible standards, vesting and escrow, royalty mechanics, and the metadata and storage strategy behind them.
05
Wallets and dApp front ends
Wallet connection, transaction signing flows and clear failure states, so non-technical users are not guessing what a pending transaction means.
06
Integration with your existing stack
Indexers, event pipelines and reconciliation between on-chain state and the ordinary database your business actually runs on.
Typical outcomes
What good looks like
Placeholder — replace with real client data
Specification before code
Every contract starts as a written spec covering state, invariants, access control and upgrade path — reviewed with you and signed off before implementation.
Adversarial testing as standard
Foundry and Hardhat suites with invariant and fuzz testing, plus static analysis. We attack our own contracts before anyone else gets the chance.
Boring, proven patterns
Audited reference implementations wherever they exist. Novel cryptography is a last resort, not a selling point.
Keys and deployment stay yours
Deployer keys, multisig configuration and admin roles are held by you. We never hold custody of your contracts or your users’ assets.
Related services
Most engagements combine more than one
Work rarely stays in a single lane. These are the disciplines that most often sit alongside this one.
Web Development
Sites and applications engineered for speed, search and conversion.
Mobile Development
iOS and Android apps that ship on schedule and survive store review.
AI & Automation
Workflow automation scoped against the hours it actually saves.
Digital Marketing
SEO, content and paid acquisition measured in pipeline.
FAQ
Blockchain & Web3 questions
Often not, and we will tell you. A shared database with good access control solves most problems more cheaply. Blockchain earns its cost when you need settlement between parties who do not trust each other, verifiable scarcity, or credible neutrality. That assessment is part of discovery and it is free.
EVM chains including Ethereum, Base, Arbitrum, Polygon and Optimism, plus Solana. We recommend based on your users, transaction costs and where liquidity or counterparties already are — not on what we most enjoy writing.
We prepare for it and we manage it, but the audit itself is performed by an independent third-party firm. A team auditing its own contracts is not an audit. We budget for it explicitly in the proposal.
You do. Deployer keys, multisig signers and any admin roles are configured under your control from the start. We never take custody of contracts or user funds.
Yes. Most engagements are hybrid — an on-chain component for settlement or provenance, with indexers and reconciliation into the conventional systems your finance and operations teams already use.
Portfolio
A decade of work still in production
Selected engagements across software and growth. Many of these systems have been running — and being maintained by us — for years.
Field operations platform
Logistics group
A dispatcher platform and driver app built in 2014 and still in daily use across three countries. We have maintained and extended it continuously since launch.
Subscription commerce storefront
D2C brand
Headless storefront with subscription billing, rebuilt for speed and paired with the acquisition programme that grew it. Now in its fourth year of retained work.
Regulated onboarding flow
Fintech
A fourteen-step KYC journey rebuilt as a saved, resumable process — completion up substantially without weakening a single compliance control.
Clinic network consolidation
Healthcare group
Nine competing location sites consolidated into one architecture with proper local schema, then a condition-led content library mapped to patient intent.
Next step
A 30-minute call will tell you more than any deck
Bring the problem you are actually trying to solve. We will tell you what it takes, what it costs, and whether we are the right people for it.