Frontend engineer for startups and teams. I turn messy ideas into fast, polished products with React, Next.js, TypeScript, and React Native — from the first pixel to the last loading state. The goal isn't just a website; it's software people enjoy coming back to.
Clear interfaces, reliable systems, and products people actually enjoy using.
I'm Mary Cynthia Amarachi — a frontend developer who obsesses over the details users notice and the ones they don't. I sit at the intersection of design sensibility and engineering rigor: the person who can polish a component library in the morning and ship a feature by evening.
Over the past few years I've turned designs into production-ready products, solved tricky UI challenges, and built features that make complex workflows feel effortless. From event platforms to crowdfunding apps, I care about software that looks good, works even better, and keeps people coming back without making them think twice.
If you need someone who sweats the small stuff — motion, accessibility, performance, and that one hover state everyone forgets — we should talk.
From first wireframe to production deploy — I care about the experience as much as the code.
Building fast, accessible, pixel-precise interfaces that hold up in production — not just in Figma.
Turning design files into interactive, responsive experiences with motion that earns its place.
Wiring product experiences to LLMs and AI APIs so the intelligence feels native, not bolted on.
Auditing and optimizing for speed, SEO, and WCAG compliance — so nobody gets left behind.
Map the flow before touching a pixel.
Componentized, typed, and version-controlled.
Motion, edge cases, and the details users feel.
Deployed, monitored, and handed off clean.
Opinions held loosely — the stack bends to the product, not the other way around.
A cross-section of product, client, and experiment — from concept to deployment.
Most recent client work ships under NDA. Here's what I can show you publicly.
A personal portfolio built to present my projects and skills in a clean, professional way. Developed with Next.js and React, featuring responsive layouts, smooth animations, and custom interactive sections.
An official website for Feteflex, an event organization and booking platform. Developed with React, TypeScript, and Tailwind CSS to ensure scalability and maintainability.
A web application for a modern hosting platform, built with React.js from the ground up with a mobile-first approach and smooth animations.
A modern e-commerce platform developed with Next.js and TypeScript, featuring secure authentication and a fully functional admin dashboard.
An AI-powered movie discovery platform that helps users explore trending films, search extensive movie data, manage personalized watchlists, and receive intelligent movie recommendations based on their viewing interests.
A modern personal brand website designed to establish a strong digital presence, showcase professional achievements, and position the client as a thought leader.
Roles, impact, and what I learned along the way.
Delivered in-person web development training to higher institution students through weekly sessions, covering core frontend concepts and practical implementation.
Designed and taught structured lessons and hands-on exercises, helping students build functional web interfaces and understand real-world development workflows.
Simplified complex technical concepts into clear, easy-to-understand explanations, strengthening student comprehension and improving learning outcomes.
Built and maintained iPyramid School Assist, a school management platform used by 1,000+ students and teachers across multiple schools, enabling online result upload, PIN/SMS access, and multi-branch administration.
Built responsive, component-based user interfaces using modern frontend practices, collaborating with backend developers to integrate REST APIs and ensure smooth data flow.
Implemented core features such as student and teacher management, exam result upload and viewing, multi-branch administration, and soft-delete with recovery, reducing manual administrative tasks by 40%.
Provided technical support and onboarding for school staff, resolving issues, improving adoption, and assisting with school website setup and ongoing UI maintenance.
Contributed to the development of the FeteFlex Management System (FMS), improving system efficiency by 30% and enhancing user experience.
Played a key role in developing and maintaining the company website, ensuring 100% responsiveness and improving user engagement by 25%.
Enhanced data accuracy by 35% through API integrations, ensuring smooth front-end and back-end communication.
Optimized websites for performance and SEO.
Contributed to 95% on-time project completion through cross-functional collaboration.
Developed a 100% responsive and user-friendly UI, improving user engagement.
Enhanced application functionality by 40% using Redux Toolkit for efficient state management and API integration.
Improved design consistency across the platform by building a reusable component library.
Increased code reliability through rigorous testing, reducing reported bugs by 20%.
Full-time roles, collaborations, and freelance. I typically reply within a day.