Hi, I'm Oluwaseun Ajao - a frontend engineer with 3+ years of experience.

FRONTEND ENGINEER (REACT • NEXT.JS • PERFORMANCE)

I build fast, scalable web apps that users actually enjoy.

Frontend Engineer focused on performance, scalability, and real-time applications using React and Next.js. Experienced in integrating blockchain and Web3 technologies into production-ready products.

Portrait of Oluwaseun Ajao
  • Frontend engineering with React, Next.js, TypeScript, and Tailwind CSS
  • Real-time systems, performance optimization, and WebSockets
  • Web3 engineering with Nervos CKB, wallet flows, and smart contracts

About

I'm a frontend engineer who builds fast, reliable, and scalable web applications with a strong focus on performance and user experience.

Over the past 3+ years, I've worked on real-world products involving real-time systems, complex UI interactions, and blockchain integrations—shipping solutions that are not just functional, but production-ready.

I care about writing clean, maintainable code and building systems that scale.

How I work

I specialize in React, Next.js, and TypeScript, and I build systems that need to stay fast, understandable, and stable in production. My work spans user-facing frontend systems, real-time product flows, and end-to-end Web3 applications with wallet authentication, on-chain interactions, and backend integrations.

I focus on solving practical engineering problems, from optimizing frontend performance to handling complex blockchain interactions reliably under real-world conditions.

Where my work sits

  • Performance engineering: faster load times and better UX
  • Real-time systems: WebSockets, live dashboards, and synced state
  • Web3 infrastructure: smart contracts, RPC/indexers, and wallet flows

What I optimize for

I care about maintainable architecture, clear product flows, safe transaction handling, and interfaces that remain stable even when the underlying systems are complex.

Skills

Core engineering capabilities across frontend, performance, and Web3 systems.

I work across the application layer, real-time systems, and blockchain integrations with a strong focus on reliability.

Frontend Engineering

  • React
  • Next.js
  • TypeScript
  • Zustand
  • Tailwind CSS
  • Vite

Performance & Systems

  • Code Splitting
  • Lazy Loading
  • Real-Time Systems
  • Performance Optimization

Web3 & Blockchain

  • Nervos CKB
  • RPC/Indexer Integration
  • WalletConnect
  • Molecule Encoding
  • Smart Contracts (Rust)

Backend Development

  • Node.js
  • Express
  • PostgreSQL
  • Prisma
  • WebSockets

Tools & Infrastructure

  • Git
  • Vercel
  • REST APIs
  • JWT Authentication
  • Figma

Engineering Edge

Engineering problems I've solved.

I focus on building systems that are not just functional, but reliable under real-world conditions.

Designed and implemented a scalable frontend architecture that improved application performance and responsiveness under high user traffic.

Built real-time features using WebSockets, enabling instant data updates and improving user interaction speed.

Optimized application performance by reducing unnecessary re-renders and improving load times across key user flows.

Developed reusable and maintainable UI components to ensure consistency and scalability across the application.

Integrated blockchain functionality, including wallet connections and transaction flows, into user-facing applications.

Improved overall user experience by refining navigation flows and reducing friction in key interactions.

Selected Work

Selected projects showcasing my engineering approach and capabilities.

A focused set of production websites and applications. Each one highlights practical frontend or full-stack work.

Education

Academic foundation and continued learning.

My formal training in computer science is supported by focused, hands-on frontend and product development programs.

2018 - 2025

Higher National Diploma (HND)

Yaba College of Technology, Lagos

Computer Science with coursework and project work centered on software engineering, algorithms, data structures, and modern web development.

2023 - 2025

Professional Development

Codeverse Africa, Zuri Team, TechyJaunt

Continued hands-on training in JavaScript, React, responsive web development, API integration, and production-ready frontend practices.

Contact

Let's Build something great together

Have a project, idea, or opportunity? I'd love to hear about it. I'm currently available for freelance and full-time roles.

I can help you with:

  • High-performance frontend applications
  • Real-time systems and dashboards
  • Scalable, production-ready web apps

Let's talk.