Frontend Engineer (Performance & Web3)
I'm Oluwaseun Ajao, a Lagos-based engineer with 3+ years of experience building production-grade applications with React, Next.js, TypeScript, Node.js, PostgreSQL, and Web3 tooling. I focus on performance, real-time systems, and reliable wallet and blockchain flows.
About
Over the past 3+ years, I've worked on production-grade applications with a strong emphasis on performance optimization, real-time systems, secure transaction flows, and Web3 user experience.
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.
I care about maintainable architecture, clear product flows, safe transaction handling, and interfaces that remain stable even when the underlying systems are complex.
Skills
I work across the application layer, real-time systems, and blockchain integrations with a strong focus on reliability.
Frontend Engineering
Performance & Systems
Web3 & Blockchain
Backend Development
Tools & Infrastructure
Engineering Edge
I focus on building systems that are not just functional, but reliable under real-world conditions.
Reduced frontend load time by about 50% using code splitting and lazy loading.
Built reliable UI systems on top of unstable blockchain indexers.
Solved encoding mismatches between Rust smart contracts and TypeScript frontend.
Designed secure wallet authentication flows using signed messages.
Implemented real-time systems with consistent state across frontend and backend.
Built payment systems with safe transaction handling and validation.
Selected Work
A focused set of production websites and applications. Each one highlights practical frontend or full-stack work.
Education
My formal training in computer science is supported by focused, hands-on frontend and product development programs.
Yaba College of Technology, Lagos
Computer Science with coursework and project work centered on software engineering, algorithms, data structures, and modern web development.
Codeverse Africa, Zuri Team, TechyJaunt
Continued hands-on training in JavaScript, React, responsive web development, API integration, and production-ready frontend practices.
Contact
I'm open to frontend and Web3 engineering roles where I can contribute to building high-performance, user-focused systems.
Let's talk.