Available for freelance and full time

Hi, I'm Clement. I Build Digital Products That Turn Ideas Into Real Businesses.

I’m a Senior Full-Stack Developer helping founders, startups, and businesses build scalable web & mobile apps, SaaS, AI-powered products, and custom business systems — from MVP to production. I focus on clean architecture, great UX, performance, and building products ready for real users and growth.

Trusted by founders & startups
95%
Success Rate
10+
Total Projects
10 weeks
Avg. Delivery
3+ yrs
Building
Clement Kingsley

Currently

Full Stack Dev @ Power Prompts Lab

About

The developer behind the product.

I'm a Senior Full Stack Software Developer with 3+ years of experience building web and mobile products for founders, startups, and growing businesses.

I take ownership of the entire product journey—from system architecture, backend and API development to responsive interfaces, integrations, testing, and deployment. My goal is simple: build software that is not only functional, but fast, scalable, maintainable, and ready for real users.

I work closely with clients to understand their goals, turn ideas into practical solutions, and ship products with the right balance of technical quality, great user experience, and business value.

Whether you're starting with an idea, building an MVP, or improving an existing product, I can help take it from concept to production.

Experience
3+ years
Projects shipped
4
Client satisfaction
100%
Avg. delivery
10 weeks
Problem SolverClean CodeProduct MindsetScalable Systems

What I do

01

Web App Development

High-performance, scalable web applications designed around your business goals—from landing pages and MVPs to complex dashboards and full-scale platforms.

ReactNext.jsTypeScriptTailwind CSSPostgreSQLREST APIs
02

Mobile Apps

Modern, cross-platform mobile applications built for iOS and Android with smooth experiences, reusable components, and scalable architecture.

React NativeExpoTypeScriptNativeWindREST APIs
03

Backend & APIs

Secure and scalable backend systems that power reliable applications, APIs, authentication, data management, integrations, and business logic.

Node.jsExpressREST APIsWebhooksDrizzleSupabaseNeonConvexPostgreSQLRedisDocker
04

Branding & Identity

Cohesive brand systems that make a product feel considered—logo, typography, colour, and the interface components that carry that identity across every screen.

FigmaDesign SystemsBrand GuidelinesUI Kits
02Selected work

Things I've shipped end to end.

A selection of products, applications, and systems I've designed, built, and shipped — focused on solving real problems with clean, scalable, production-ready code. Each card opens a full case study.

Foody Express preview
Mobile App
2025

Foody Express

Premium food delivery solution with real-time tracking, restaurant analytics, and seamless payment integration.

React NativeTypeScriptExpoPayStack
ExpenseAI preview
Web App
2025

ExpenseAI

ExpenseAI is an AI powered Expense tracking App that helps you control your spending, manage your expenses, Create Budgets and gives you best suggestions on how to minimise expenses.

Node.jsReactNext.jsTypeScriptTailwind CSSFirebasePaystackShadcnREST API
Perpetual Wealth preview
Web App
2026

Perpetual Wealth

Full stack AI-driven financial intelligence platform for high-income earners that centralizes financial information, reduces complexity, and delivers actionable wealth strategies.

Node.jsReactNext.jsTypeScriptTailwind CSSShadcnSupabaseStripeAnthropic SDKCloudflareSentryResendREST API
Power Prompts Lab preview
Web App
2026

Power Prompts Lab

A mobile-first subscription learning platform that teaches everyday practical AI skills to adults aged 55+, an audience most learning products quietly ignore.

Next.js 16React 19TypeScriptTailwind CSSClerkNeonPostgresDrizzle ORMStripeResendPostHogUpstash RedisZodVercel

Every project here shipped to production.

See more on GitHub →
Experience

Three years, four products still shipping.

  1. 01

    Mobile App Developer

    Foody Express

    Nigeria

    Built the customer app for iOS and Android — real-time order tracking, native animations, and Paystack checkout — plus the analytics dashboard restaurant partners run every shift.

    Nov 2024 — Feb 2025
    Freelance
  2. 02

    Solo Full Stack Developer

    ExpenseAI

    Nigeria

    Shipped an AI expense tracker end to end: receipt scanning, automatic categorisation, spending analytics, Firebase auth, and Paystack subscription billing.

    May 2025 — Oct 2025
    Freelance
  3. 03

    Full Stack Developer

    Perpetual Wealth

    United States

    Delivered v1 of an AI wealth-management platform — a concierge agent, personalised playbooks, an encrypted document vault, and the admin dashboard behind it.

    Jan 2026 — Apr 2026
    Freelance (Contract)
  4. 04

    Full Stack Developer

    Power Prompts Lab

    Columbia

    Building a mobile-first subscription learning platform that teaches practical AI skills to adults aged 55+, on Next.js 16, Clerk, Neon, Drizzle, and Stripe.

    Jun 2026 — Present
    Freelance · Full-time
Stack

Tech Arsenal

The modern toolkit I reach for to design, build, and ship scalable, high-performance products end-to-end.

Frontend

6

Crafting fast, responsive interfaces with modern frameworks.

React
Next.js
TypeScript
Tailwindcss
Framer Motion
Shadcn UI

Mobile

4

Building native-feeling apps with smooth animations.

React Native
Expo
Reanimated
NativeWind

Backend & APIs

7

Designing reliable services and clean API contracts.

Node.js
Express
REST API
Stripe
Sentry
Firebase
JWT

Database & Cloud

8

Storing, scaling, and shipping with confidence.

PostgreSQL
Supabase
Neon
Convex
FirebaseDB
MongoDB
Cloudflare
Vercel

Languages

5

The core languages I write in every day, front to back.

TypeScript
JavaScript
HTML5
CSS
SQL

State Management

4

Keeping client and server state predictable and in sync.

Redux
Zustand
PostgreSQL
Prisma

Practice

5

How I work — the habits behind shipping software teams can rely on.

Problem Solving
Team Collaboration
Performance
Responsive and Cross Browser
Technical Writing

Infra and Tooling

6

The everyday workbench — version control and developer experience.

Git
GitHub
Postman
VS Code
NPM
pnpm
Contact

Let's Work Together

Have a project in mind, a role to fill, or just want to say hello? Drop a message. I usually reply within 24 hours.

Currently open to freelance projects and full-time roles in frontend, full-stack, and mobile development.

Your details stay private — never shared, ever.

Let's build something

Have a product in mind? I can help you ship it.

Clement Kingsley

Full-stack developer passionate about creating innovative digital solutions that make a difference.

Get In Touch

clemento444@gmail.com

+234 813 265 2982

Lagos, Nigeria

© 2026 Clement Kingsley. All rights reserved.

Built with Next.js & Tailwind CSS