Front-End Engineer
Who Am I ?
Hi, I'm
As a passionate JavaScript Developer focused on React ecosystems, I bring deep experience with Design Systems, Web Accessibility, and Serverless solutions on Google Cloud. I thrive in Agile environments, delivering scalable front-end architectures that evolve with product needs.
I continue to hone my craft through Next.js development, building fast and resilient experiences. I also integrate payment gateways such as Barclays, Google Pay, and Apple Pay to ensure seamless checkouts and trustworthy user journeys.
What I Do ?
Developing modern, scalable, and maintainable front-end architectures using React, Next.js, and TypeScript. I focus on performance, reusability, and clean code practices that enhance both user experience and developer productivity.
Architecting production-grade SaaS platforms with Next.js (App Router), leveraging the BFF (Backend-for-Frontend) pattern, multi-tenant subdomains, dynamic theming, and localization for global audiences.
Designing and implementing cohesive dashboards and scalable design systems with MUI, ShadCN, and TailwindCSS — empowering teams to ship features faster while maintaining brand and UX consistency.
Building pixel-perfect, responsive, and accessible UIs that adapt beautifully to any device — ensuring WCAG compliance, smooth interactions, and consistent experiences across platforms.
Seamless integration of payment gateways such as Barclays, Paymob, Google Pay and Apple Pay— implementing secure token-based flows, refunds, and webhook handling for a reliable and frictionless checkout experience.
Enhancing app performance and developer experience through advanced caching strategies, code-splitting, and build-time optimizations. I ensure fast-loading, SEO-friendly, and highly maintainable applications with measurable Core Web Vitals improvements.
What I Did ?
Landing page for the Guilherme Ferreira Design company.
Visit site: Guilherme Ferreira Design
Available for work
Always feel free to reach out — I'm open to freelance and consulting roles.
Five-star reviews from Upwork clients.
Excellent and fast React js work, will hire again
Nate Welling
it was a pleasure to work with Ahmed, he delivered exactly what I requested. I appreciated the fact he asks me things when are not clear, and I appreciated the suggested solutions. hope to work again with him, highly recommended.
Matteo Croci
Strongly recommended Ahmed. One of the best upwork freelancer. Ahmed delivered perfect work on this Angular development project and I enjoyed working with him.
Nuttawuth Chainilphan
I recommend Ahmed. He executed the work before the deadline with great quality of work.
Thomas Bosc
Ahmed was awesome. One of the best freelancers I hired in Upwork. I really recommend this guy for any code development work!
Guilherme Ferreira
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