Full lifecycle ownership
From domain modelling and API design to CI/CD and production monitoring. I own outcomes, not tickets.
Hi, I'm Akinfenwa Taiwo Christopher
Open to workAkinfenwa Taiwo Christopher, Fullstack & Mobile
Engineer
I architect and ship production-grade software end‑to‑end, engineered for the web
- React
- Next.js
- TypeScript
- Vue.js
- Angular
- React Native
- Expo
- Node.js
- NestJS
- Python
- PostgreSQL
- Prisma
- Redis
- Docker
- Google Cloud
- Tailwind CSS
- jQuery
About me
Engineering systems, not just features.
I'm a fullstack and mobile engineer who designs, builds and operates software across the entire stack, from data modelling and API contracts to cross-platform clients. I turn ambiguous requirements into resilient architecture and own delivery from first commit to production.
My core stack is TypeScript end-to-end: Next.js, React, Vue.js and Angular on the web, React Native with Expo on mobile, and NestJS services backed by PostgreSQL, Prisma and Redis. I also modernise legacy jQuery codebases without disrupting delivery. I prioritise observability, comprehensive test coverage and maintainable abstractions, and I'm comfortable driving technical decisions, reviewing code and raising the engineering bar across a team.
- Focus
- Product engineering
- Platforms
- Web · iOS · Android
- Approach
- Architecture‑first, outcome‑driven
- Status
- Open to work
Performance as a feature
Efficient queries, smart caching and optimised rendering, measured against real-user metrics rather than assumptions.
Built to scale
Strongly typed boundaries, test coverage and clear abstractions that keep velocity high as the codebase and team grow.
Quality at every layer
A layered testing strategy that catches defects early, keeps releases predictable and lets teams ship with confidence.
Unit testing
Isolated business logic, utilities and services
Integration testing
Modules, databases and third-party services working together
Component testing
UI components in isolation across web and mobile
End-to-end testing
Critical user journeys through the full stack
API testing
Endpoints, payload validation, auth and error handling
Contract testing
Guaranteed compatibility between services and clients
Regression testing
Protecting existing behaviour on every release
Visual regression testing
Catching unintended UI changes before users do
Performance testing
Response times and rendering under real-world conditions
Load & stress testing
System behaviour at and beyond peak traffic
Accessibility testing
WCAG compliance, screen readers and keyboard flows
Cross-browser & device testing
Consistent behaviour on every browser, iOS and Android
Projects
Selected work,
live in production.
Live products across web and mobile. Every preview is a real capture of the production site, so what you see is what users get.
Skills
The toolkit behind
the work.
A deliberately focused stack, chosen for type safety, delivery speed and long-term maintainability across web, mobile and backend.
TypeScript
Frontend
JavaScript
Frontend
React
Frontend
Next.js
Frontend
Vue.js
Frontend
Angular
Frontend
jQuery
Frontend
Redux Toolkit
Frontend
React Query
Frontend
Tailwind CSS
Frontend
Sass
Frontend
Bootstrap
Frontend
HTML5
Frontend
CSS
Frontend
React Native
Mobile
Expo
Mobile
EAS Build
Mobile
Android
Mobile
Node.js
Backend
NestJS
Backend
Python
Backend
REST APIs
Backend
Prisma
Backend
Supabase Auth
Backend
BullMQ
Backend
PostgreSQL
Data
Redis
Data
Git & GitHub
Cloud & DevOps
Docker
Cloud & DevOps
Google Cloud
Cloud & DevOps
Sentry
Cloud & DevOps
Jest
Testing
Vitest
Testing
GitHub Copilot
AI Tools
Claude
AI Tools
Cursor
AI Tools
Experience
Where I've
made an impact.
I use AI-assisted tooling (GitHub Copilot, Claude, Cursor) to accelerate delivery, then apply engineering judgment to review, harden and productionise every change.
- Years building web, backend and mobile products
- 5+.Years building web, backend and mobile products
- API endpoints built for platforms
- 583+.API endpoints built for platforms
- Database models designed
- 129+.Database models designed
- Automated test files written
- 186+.Automated test files written
Frontend Developer
Viro
Building the AI assistant and meeting workflows at the heart of Viro, a revenue platform that follows up, updates records and moves deals forward after every meeting.
- Replaced a demo chat that only gave pre-written replies with a real AI assistant that streams its answers live, connected to the backend through typed API calls.
- Added a new API endpoint that finds the right conversation for each meeting, so the assistant always answers with the correct context.
- Broke a 150-line chat component into small, focused pieces for sending messages, attachments, the message list and the text box, making the feature easier to maintain and test.
- Built file attachments with upload progress for every file, plus options to retry or remove each one.
- Added live streaming replies with a "thinking" indicator, inline source citations and error recovery, and fixed a bug that created duplicate messages when a retry failed.
- Designed and built an approval flow for tasks the AI creates from meetings: users can accept, edit or reject each one, with new tasks and tasks awaiting confirmation shown in two separate lanes.
- Created one shared system for task actions that is reused across features, removing duplicate code.
- Set up type-safe request and response types for every API call, and moved shared display logic such as colours and formatting into one place.
- Laid the groundwork for a new AI Activities tab inside the meeting view, ready for upcoming features.
- React
- TypeScript
- Redux Toolkit
- RTK Query
- Streaming AI
- REST APIs
Lead Full-Stack Engineer
Everlasting Hills Church Platform
Designed, built and run a complete church management platform on my own: an installable web app that works offline, backed by a secure API that powers every ministry team.
- Built the whole platform solo in five months: a Next.js web app and a NestJS backend with 583 API endpoints, 129 database models and 510 commits.
- Covered the full life of the church in 40+ feature areas, including membership, attendance, home cells, visitor follow-up, events, courses, reading plans, giving and reports.
- Designed one system that serves every department safely, with 9 levels of access so each leader and member only sees what they should, and a full audit log of who changed what.
- Kept sign-in secure by holding login tokens in protected server-side cookies instead of the browser, with rate limiting to block abuse.
- Automated the weekly workload with background jobs and 11 scheduled tasks, so follow-ups, reminders, notifications and email campaigns run on their own.
- Added online giving with Paystack, and used Google Gemini AI to turn YouTube sermons into written summaries for the congregation.
- Made it feel like a native app: installable, usable offline (including sermon playback), with push notifications and a built-in CMS so the team can update the public website themselves.
- Connected the services the church relies on, including email, file storage, Google Calendar, Telegram and error monitoring.
- Protected every release with automated checks: 186 test files, strict type checks and a safeguard that stops the app and API from drifting apart, before deploying to Google Cloud.
- Next.js 14
- NestJS
- Prisma
- PostgreSQL
- Redis
- BullMQ
- Supabase Auth
- Paystack
- Gemini AI
- Google Cloud Run
- Sentry
2026
Fintech · Mobile
Mobile Engineer
Vaultly
Built the mobile banking app for Vaultly, a Nigerian fintech, from sign-up to sending money.
- Built sign-up with real-time identity checks to verify new users.
- Connected the app to banking APIs for transfers, deposits, wallets and savings.
- Built transfers with live balance updates, clear status messages and full transaction history.
- Set up custom app builds so native features could be developed and tested without delays.
- React Native
- Expo
- TypeScript
- Dojah KYC
- Anchor
- Next.js
Education
Bachelor's Degree in Civil Engineering
University of Ibadan, Ibadan, Nigeria
Certifications
- Dufuna Code Camp
- AltSchool Africa
- Code Evolution
Contact
Let's build something
worth shipping
Have a product to build, or a team that needs an engineer who can own work from idea to launch? I'm open to new roles and projects, and happy to talk through what you have in mind.