How we use AI to build software
AI doesn't replace senior engineers. It makes them faster. AI-assisted workflows are the method, speed is the result, and a senior engineer is accountable for everything that ships. Here's exactly how that works.
What AI does, and what the engineer does
The split is deliberate. AI compresses the work; the senior engineer owns the judgement calls and the output.
What AI does
- Scaffolds boilerplate, tests and repetitive plumbing in a fraction of the time.
- Drafts implementations the engineer edits, rather than writing from scratch.
- Accelerates research, refactors and migrations across a codebase.
- Generates first-pass documentation and test coverage.
What the senior engineer does
- Owns architecture, data modelling and the decisions AI can't be trusted with.
- Reviews every line before it merges. Nothing ships unread.
- Is accountable for correctness, security and maintainability.
- Decides what to build and, just as importantly, what to cut.
The review gates
This is what separates AI-assisted engineering from vibe coding: AI output never reaches production, or a customer, unchecked.
- PR-based review. Every change lands through a pull request a senior engineer reads and approves. It's the same discipline whether the first draft came from a person or a model.
- Human approval before anything customer-facing. On RoomSome, our hotel guest-messaging platform, every AI response suggestion and every translation is previewed and approved by a person before it reaches the guest. That gate is how a senior team ships AI into a customer-facing surface.
- CI/CD and tests. Automated checks run on every merge, and you get weekly demos of working software, not a surprise at the end.
MVP in weeks, then a full product in phases
Speed is the result of the method, not a shortcut. We work in a ladder so the timeline always matches the scope.
MVP: 2 to 5 weeks
A ruthlessly scoped build to validate your idea with real users. Fixed price, agreed upfront.
Full product: fixed-scope phases
Larger products continue as fixed-scope phases. RoomSome ran as a 14-week engagement with two senior engineers across two phases. Same commitment, larger scope.
Want this method on your product?
Tell us what you're building and we'll come back within 24 hours with scope, timeline, and a fixed price.