Add new features without breaking what works.
Integrating new functionality into a live product is harder than building from scratch. I understand your existing conventions, write code that fits, and deliver features that work on day one.
Everything in scope
- Requirement analysis
- Seamless integration
- Testing & QA
- Documentation
- Handoff & onboarding
Who this is for
- Growing products that need new functionality
- Teams temporarily short on developer capacity
- Businesses adding integrations or new user flows
- Products expanding to new markets or use cases
The process
Codebase Review
I spend time understanding your architecture, conventions, and existing patterns before writing anything.
Spec
We define the feature precisely — inputs, outputs, edge cases, and what 'done' looks like.
Build
Incremental development with regular check-ins. You can review at any point.
QA & Handoff
Testing, code review, and a written summary of what changed and why.
Tools I use for this service
Common questions
Can you work in a team environment?
Yes. I'm comfortable with PRs, code reviews, Git workflows, and communication via Slack or Linear. I adapt to your team's process.
How do you handle features that interact with existing code?
Carefully. I trace all the touch points before I start, and I test the existing behaviour after each change.
What if the existing code is messy?
I work with what's there. If something needs refactoring to safely add the feature, I'll tell you and get sign-off before proceeding.
Ready to get started?
Book a free 30-minute call. We'll talk through your project and I'll tell you exactly what I can do and what it will cost.
Book a Free Discovery Call