I take products from idea to production using React Native, Next.js, TypeScript, Python/FastAPI, and PostgreSQL—covering APIs, data models, authentication, payments, AI integrations, testing, CI/CD, and release. My strongest fit is 0→1 startup product development and end-to-end feature ownership.
Engineering scope
My strongest work sits at the intersection of product engineering and systems thinking: building the interface users touch while also owning the APIs, data model, authentication, automated tests, integrations, and production path behind it.
React Native and Expo applications with authentication, native device capabilities, APIs, payments, audio/location workflows, testing, EAS builds, OTA updates, and App Store / Play Store release work.
React Native · Expo · TypeScript · EAS · iOS · Android
Explore expertiseProduction web products and operational dashboards built around real workflows, responsive interfaces, data-heavy views, public search surfaces, and maintainable component systems.
Next.js · React · TypeScript · TanStack · Tailwind
Explore expertiseREST/GraphQL APIs, business logic, webhooks, relational data models, authentication, and third-party integrations designed to support complete products rather than isolated screens.
Python · FastAPI · PostgreSQL · SQLAlchemy · REST · GraphQL
Explore expertiseI work across architecture, implementation, automated testing, payments, AI/LLM integrations, GitHub workflows, Vercel deployment, Expo EAS release, app stores, technical SEO, and iteration after launch.
Playwright · Maestro · Pytest · Jest · GitHub · Vercel · Expo EAS
Explore expertiseSelected work
These projects are selected for engineering breadth: a production voice/mobile product, a complex healthcare web platform, and a PropTech/FinTech product spanning mobile, backend, data, payments, accounting-style reconciliation, testing, and operational tooling.
Voice-first journaling app that preserves the original recording, transcribes spoken entries, and uses AI to generate useful titles, summaries, and categories. Entries can be searched and revisited by date, linked to goals, supported by reminders and prompts, and protected with account, deletion, and optional biometric controls.
Hospital management information system connecting patient registration, OPD, emergency, inpatient care, orders, referrals, theatre, billing, ambulance, mortuary, duty coverage, patient movement, documents, and facility operations. Its latest public draft also adds facility-bound M-Pesa patient invoice collection with encrypted merchant credentials, callback verification, idempotent receipt handling, and invoice reconciliation.
Rent collection and reconciliation software for landlords and property managers. RentPayor creates rent invoices, lets tenants pay KES rent through an invoice-linked M-Pesa flow, automatically reconciles confirmed payments, and keeps partial balances, carried-forward credits, receipts, leases, units, tenants, and manual payment records in one rent ledger.