Frontend Developer — React · TypeScript · JavaScript · Node.js
IBM-certified developer with production experience across the full stack — TypeScript and React on the frontend, Python and Node.js on the backend. I build things that work end to end.
About Me
I build interfaces that are fast, typed, and production-ready — React components, custom hooks, TypeScript throughout, and UIs that connect cleanly to the APIs behind them. My GitHub spans React, TypeScript, JavaScript, Python, PHP, and Jupyter notebooks. I know the backend well enough to never be blocked by it.
React and TypeScript — component architecture, custom hooks, Context API, React Query, and responsive UIs. Production-shipped across multiple projects.
REST APIs with Node.js, Express.js and Python, production Nginx/Gunicorn deployments, Celery task queues. Enough to build and debug the full stack.
PostgreSQL schema design, query optimisation, and data work in Python with Jupyter notebooks. End-to-end thinking from data layer to UI.
Tech Stack
Also worked with: Python · Django · PHP · Laravel · Angular · PostgreSQL · Redis · Celery · Nginx · Gunicorn · Jupyter · Git · Docker
Fully typed React apps — strict interfaces, custom hooks, React Query for data fetching, Context API state management. Production-shipped across 5 projects.
REST APIs with Express.js and Django REST Framework, Nginx/Gunicorn deployments, Celery task queues, and Redis for async processing.
PostgreSQL schema design, query optimisation, Python scripting and Jupyter notebooks. Multiple languages across real production projects.
Experience
Enerx Ltd · Adeniyi Jones, Lagos
Built a multi-page exhibition platform in React.js and Node.js serving real-world users in production. Implemented interactive UI features for the John SciTec Website. Authored automated test cases and integrated third-party APIs and internal microservices.
Bincom Academy · Yaba, Lagos
Building mobile applications within cross-functional teams, integrating RESTful APIs with Laravel and Node.js for projects serving over 15,000 active users. Developed FoodRisk AI, a mobile app that flags food safety risks, and DevCircle, a community app for developers to connect and collaborate. Working within professional code review processes and modern development workflows.
DON-CLEM LTD
Designed and built RESTful APIs with Django REST Framework. Configured production deployments with Nginx and Gunicorn. Reduced response times for long-running operations by offloading background jobs to Celery and Redis.
Certifications
12-course professional certificate covering frontend development, backend systems, cloud deployment, containers (Docker & Kubernetes), microservices, CI/CD pipelines, and software engineering best practices.
Building and deploying AI-powered web applications using Python, Flask, and IBM Watson APIs.
Python fundamentals, data analysis with Pandas and NumPy, and integration with AI services.
RESTful API design, authentication, and backend architecture with Node.js and Express.
Cloud architecture, deployment models, and hands-on experience with IBM Cloud services.
Hands-on internship programme covering full stack development practices and real project delivery.
Intermediate Python programming — OOP, data structures, file handling, and scripting projects.
Projects
Mode selector, language picker, and code input — paste & generate
Paste code and instantly generate documentation, READMEs, code reviews, explanations, or unit tests — powered by Claude AI. Five modes, eight languages, fully typed React hooks.
Hero section — search bar, navigation, and CTA
Nigerian e-commerce marketplace with a bold hero, product search, and checkout built for local consumers. Clean, mobile-first UI designed to communicate trust and speed.
Home dashboard — AI Health Detective, sensitivity profile, and Smart Inspect barcode/menu scanning
App built at Bincom Academy that helps users track food reactions and flag hidden triggers using AI pattern matching. Includes a personal sensitivity profile, barcode and menu scanning via Smart Inspect, and a history log for building evidence over time. Private company codebase — built as part of a cross-functional team.
Landing page — mentorship, resources, and community programs
Community platform built at Bincom Academy connecting people through mentorship, resources, and programs — with volunteer and donation flows supporting the community's growth. Private company codebase — delivered as part of a team serving over 15,000 active users across Bincom's app portfolio.
Live API · Interactive Swagger docs · 9 passing tests · Deployed on Render
Project and task management REST API — token auth, CRUD, custom actions (complete, assign, archive), service layer pattern with 9 passing tests. Live on Render with PostgreSQL and interactive Swagger docs.
Pomodoro timer with animated ring + task board with priority and status filters
Productivity dashboard combining a Pomodoro timer (full state machine via custom hook) with a typed task manager. Active task links to timer — pomodoro count auto-increments on session complete.
Offline-first balance & transactions screen — writes land in SQLite instantly, sync runs in the background
Offline-first mobile expense tracker built with React Native, TypeScript, and Clean Architecture. Optimistic UI writes straight to SQLite, a repository pattern with Result types keeps error handling explicit, and an automated CI/CD pipeline runs linting, type checks, and unit tests on every push.
Top tracks, artists & recent plays — pulled live from Spotify Web API
Personal music analytics dashboard built on the Spotify Web API. Implements PKCE OAuth (no backend required), auto token refresh, and visualises top tracks, top artists with popularity rings, and recently played history across three time ranges.
More projects on GitHub
Contact
Open to new roles, freelance projects, and collaborations. Drop me a message and I'll get back to you.
johnajayi.bincom@gmail.com