Health & Fitness
WellCompanion
Starting point
Started from an empty repository
Nothing was here before — I set up the repository and built the whole thing.
What I owned
- Designed
- Built
- Tested
- Shipped
- Operated
The moving parts
What talks to what — clients, services, data, and the boundaries between them.
Push to prod
The checks a change has to pass before it ships, and what watches it after.
Node detail
Pick a box
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The product
Health and fitness tracker that captures user activity and applies AI analysis to surface personalised insights and trends.
What I built
Full ownership as a solo developer — frontend, backend and DevOps — on a short, fixed-scope engagement. Built the cross-platform mobile app in React Native with a native Kotlin module for activity tracking, the Node.js app-side services, and the deployment pipeline. The Python and AI/ML data-processing pipeline behind the insights was owned by the client.
Everything I did here
- Full ownership as a solo developer — frontend, backend and DevOps — on a short, fixed-scope engagement.
- React Native app shipping one codebase to Android and iOS.
- Integrated Google and Apple social login, so users start tracking without creating an account first.
- Wrote the native Android activity-tracking module in Kotlin, where React Native could not reach the platform sensor APIs.
- Captures user activity across health and fitness tracking and feeds it to the processing pipeline.
- Surfaces the resulting personalised insights and trends in-app rather than raw numbers.
- The Python and AI/ML processing behind those insights was built and run by the client, not by Dev.