Senior Frontend Engineer · Design Systems · AI-Native
6+ years crafting high-performance TypeScript & React products at scale. From Nigeria's largest payment infrastructure to AI-powered applications.
I'm Andrew - a Senior Frontend Engineer based in Lagos, Nigeria, with a deep obsession for building interfaces that are fast, accessible, and beautifully engineered.
My career spans Nigeria's biggest financial institutions - Interswitch Group, Access Bank, and Africa Prudential - where I've shipped mission-critical products processing millions of daily transactions. I architect design systems from scratch, establish engineering culture, and mentor teams.
I'm genuinely AI-native: I hold certifications from Anthropic, OpenAI, and Oracle, have built production LLM pipelines with the Claude API, and use Cursor and Claude Code daily. I founded Steward, a React Native finance app with AI-generated reports powered by Claude.
Lagos, Nigeria 🇳🇬
React 16–18, TypeScript, Next.js, JavaScript ES6+, HTML5, CSS3, Tailwind, Sass, Material-UI
Component library architecture, Storybook, design tokens, WCAG 2.1 accessibility, cross-team UI consistency
Anthropic API (Claude), OpenAI API, Oracle OCI Generative AI, Prompt Engineering, RAG pipelines
Redux Toolkit, RTK Query, React Query (TanStack), Zustand, Context API, GraphQL
Webpack/Vite, code splitting, lazy loading, Lighthouse, bundle analysis, New Relic, Sentry
Node.js, Express, FastAPI, PostgreSQL, MongoDB, Docker, GitHub Actions, AWS, React Native
"Build communities that take action."
A full-scale social impact platform - the LinkedIn for good. Organizations run programs, mobilize volunteers, raise funds, and measure real-world impact. Individuals build a verified Good Identity that compounds over time.
Brought in as freelance frontend engineer to architect and ship the complete web experience from design system to production - now serving a global user base across nonprofits, companies, and volunteers.
"Smart energy, true freedom."
Nigeria's premier solar financing marketplace — built and architected at Interswitch Group, Nigeria's leading payment technology company (Licensed by CBN). A complete platform enabling homeowners and businesses to purchase solar equipment and access flexible financing for full system installations.
Architected the entire frontend from blank slate — product catalogue, energy calculator, vendor marketplace, installation booking, and financing flows — processing transactions on the same infrastructure that handles millions of daily payments.
"Discover the best mobile & web design inspiration."
Africa's largest mobile design reference library — a Mobbin alternative built for the global design community. Designers browse 50,000+ real in-production screens from iOS, Android, and web apps across Africa and worldwide.
Brought in as freelance frontend engineer to architect and ship the full platform — from search and filtering infrastructure to app screen browser, components library, and a blazing-fast UI that serves designers at top companies daily.
"Give every coin a purpose."
A premium personal finance and budgeting app for households — built from a blank canvas. Full design system ownership, income allocation engine, smart sinking funds, life milestone planner, and a Steward AI Coach powered by the Anthropic Claude API with a full picture of your finances.
Multi-currency (NGN, USD, GBP, EUR, KES + 10 more), household member sharing, debt payoff planner (Avalanche & Snowball), budget vs. actual tracking, and AI-generated monthly report cards — architected and shipped solo.
React + TypeScript design system built from scratch with Storybook. Adopted across 3+ product lines at Nigeria's #1 payment company.
Cross-platform React Native payments app integrating Interswitch & Paystack for Africa's largest bank — 50M+ customers.
Full-stack platform handling 10,000+ applications annually. React/TypeScript SPA migration that cut load times by 50%.
Open to senior frontend, full-stack, or design system roles. Also available for AI-native product consulting.