Available for new projects

👋 Hello, I'm

GriffinsBuilding high-performanceweb experiences

Specialising in React, Next.js, and Tailwind CSS. I craft clean, scalable interfaces with relentless attention to performance, accessibility, and user experience.

I collaborate across the stack using Node.js and Python, delivering production-ready features that feel polished and reliable.

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1+ years building for the web

Griffins — Frontend & Full-Stack Developer

⚡ Next.js · React · TypeScript

Get to know me

About Me

I'm a frontend-focused developer specialising in React, Next.js, and Tailwind CSS. I build clean, scalable interfaces with strong attention to performance, accessibility, and user experience.

I collaborate well across the stack using Node.js and Python (Flask), delivering production-ready features that feel polished and reliable.

Based in Nairobi, Kenya
1+ years of professional experience
Open to remote & on-site opportunities

griffins.js

const developer = {

name: "Griffins Ondeyo",

location: "Nairobi, Kenya",

focus: "Frontend & Full-Stack",

available: true,

passion: "Great UX + Clean code",

Years Experience

Projects Shipped

Happy Clients

Lighthouse Score

Career highlights

What I work with

Technical Skills

A curated overview of my core stack and how deeply I've invested in each area.

React

92%

Next.js

90%

TypeScript

78%

Tailwind CSS

95%

Framer Motion

80%

HTML/CSS

97%

Full tech stack

What I've built

Featured Projects

A selection of projects that showcase my approach to engineering quality, performance, and design.

Featured

Carbify - Car Rental Platform

Developed a full-stack inspired car rental platform using Next.js App Router, Firebase Authentication, and Tailwind CSS. Features include secure user authentication, protected booking flow, dynamic car detail pages, persistent booking management with local storage, responsive modern UI, and optimized deployment on Vercel. Implemented dynamic routing, query parameter handling, reusable components, and production-ready deployment workflows.

Perf: 95+

Uptime: 99.9%

Next.js 16React 19Firebase AuthTailwind CSSVercelJavaScriptResponsive Design

GitHub Live Demo

Featured

UrStyleKE E-Commerce Platform

Built using Next.js (App Router) for the frontend and Flask (Python) backend with SQLAlchemy ORM. Implements secure JWT authentication with refresh tokens, protected checkout flow, and persistent cart management using localStorage. Features include order creation, payment simulation flow, product CRUD endpoints, and admin-only controls using is_admin flag migration. Backend deployed on Render with CORS configured for Vercel frontend.

Perf: Optimized API responses (<200ms average)

Users: Authentication + checkout flow active users

Uptime: 99%+ Render deployment availability

Next.jsFlaskJWTSQLAlchemyPostgreSQL/SQLiteFlask-CORSRenderVercel

GitHub Live Demo

Featured

SokoMtaani

Designed and implemented SokoMtaani, a scalable peer-to-peer marketplace platform connecting buyers and sellers directly. Spearheaded full-stack development as Tech Lead, leveraging Next.js for the frontend and Flask for backend services. Integrated secure JWT-based authentication, RESTful API endpoints, and a relational database (SQLite) to ensure robust data management. Deployed frontend on Vercel and backend on Render, achieving 100% uptime and seamless cross-platform performance. Delivered a secure, cost-efficient solution that streamlined transactions and enhanced user trust.

Perf: 100

Users: Pilot Deployment

Uptime: 100%

Next.jsFlaskVercelSQLiteJWT AuthenticationRender

GitHub Live Demo

Where I've worked

Work Experience

Let's work together

Get In Touch

Have a project in mind or just want to chat? I'd love to hear from you. I typically respond within 24 hours.

Available for new projects

I'm currently open to freelance contracts and full-time remote opportunities. Let's build something great together.

Contact details

Email
griffinsshem254@gmail.com
Location
Nairobi, Kenya

GriffinsBuilding high-performanceweb experiences