SOFTWARE ENGINEERING, WITH INTENT
Contract systems, focused code reviews, and practical
technical guidance. Built around what you need.
WHAT WE DO
From a first specification to a second pair of eyes.
Clear scope. Tangible outcomes. No guesswork.
Turn your requirements into contract logic that is tested, documented, and ready to deploy.
Usually 4–12 weeksRequirements and expected behaviour. Contract implementation. Tests for normal flows and edge cases. Deployment preparation.
Verified contracts, a test suite, deploy scripts, and a written specification.
A focused review of your code, so you can address the important issues before release.
Usually 1–4 weeksAgreed review scope. Logic and vulnerability analysis. Findings prioritised by severity, with practical recommendations.
A written findings report, followed by a re-check of your fixes against the original issues.
Bring a senior engineer into the conversation. Work through the trade-offs and find a considered way forward.
Monthly retainer · 3 months minimum
A clear decision.Architecture discussions, technical choices, and delivery priorities. A senior engineering perspective within an agreed scope.
Decisions documented in writing, with the reasoning and next steps your team can use.
Build and review timelines depend on the agreed scope. We define the work and deliverables together before starting.
SELECTED ENGAGEMENTS
A few jobs that give a fair picture of what we do. Names are left out under NDA and some details have been rounded off. Happy to go into more depth on a call.
Invoice finance ArbitrumA UK invoice-finance platform wanted funders and SMEs to settle directly on-chain, but couldn't be in the middle holding anyone's money. We wrote the escrow and settlement contracts, put stablecoin rails behind them, and set up role-based access so the compliance team could see everything and change nothing. The back office reads from an indexer we built for it.
Ten weeks to mainnet. They came away with verified contracts, a Foundry suite at 96% branch coverage, a subgraph and an ops runbook, and their auditor came back with nothing critical.
THE THINKING BEHIND THE WORK
Good engineering should make your next step clearer.
VERTOX LAB works on contract systems, code reviews, and technical decisions. We bring structure to the work: what it needs to do, how it will be checked, and what you receive at the end.
We keep the conversation direct and the documentation useful. So your team can understand the decisions, work with the code, and take the next step with confidence.
Clear thinking. Written down.HOW WE WORK
You should always know what is happening,
why it matters, and what comes next.
Agree the problem, boundaries, deliverables, and what a good outcome looks like.
Build, review, or work through decisions against the agreed requirements.
Test behaviour, re-check fixes, or examine the trade-offs behind a recommendation.
Hand over the agreed outputs with the context and written decisions you need.
START A CONVERSATION
Tell us about the problem, where you are now,
and where you want to get to.
