Hi, I'm Yassin, a Software Engineer and SEO Expert with 5+ years of experience. I build fast, search-optimized web apps with React, Next.js, and Angular that rank, convert, and grow.
About
I currently work at FoliaTech, where I build responsive web and mobile apps with Angular, Ionic, Capacitor, and TypeScript. I designed a custom PDF generator package that cut document creation time by 67% and set up an error logging system that makes bugs faster to find and fix.
Before that, at Proland, I led the build of an in-house CRM with AI-driven analytics that processed 4,000+ customer interactions every month. I also redesigned the landing pages and ran technical SEO across 12 core service offerings, which lowered bounce rates by 35% and lifted user engagement by 37%.
Earlier, I worked at ITSS France, where I led development of 6 Drupal and 4 Next.js projects, and at Quick Digital Media, where I built e-commerce storefronts with React, Redux Toolkit, and Tailwind CSS that loaded 42% faster.
Outside my full-time role, I take on freelance projects. Recent ones include BookToKids, an online shop for personalised children's story books; a Next.js blog built to grow through SEO and AEO; UYAN, a hoodie store where I cut page load times from 2.8s to 1.2s; and Falcon, a shirt retailer where I reduced data fetch times by 65%.
Technical Skills
JavaScript, TypeScript, React, Next.js, Angular, React Native, Ionic, Capacitor, Redux, Tailwind CSS, SCSS, Framer Motion, Node.js, Express.js, .NET, SignalR, REST APIs, GraphQL, PostgreSQL, SQL, MongoDB, Python, PHP, Shopify, WordPress, Drupal, Git, Docker, CI/CD, VPS & SSH, BrowserStack, Technical SEO, On-Page SEO, E-commerce SEO, SEO Copywriting, AEO, GEO, Content Strategy, Structured Data, Core Web Vitals, Performance Optimization
Work Experience
- FoliaTech — Frontend Developer (2024-Present): Build responsive web and mobile apps with Angular, Ionic, and Capacitor. Designed a custom PDF generator package that cut document creation time by 67%. Built a real-time instant chat over WebSockets with SignalR on a .NET backend. Set up an error logging system that makes bugs faster to find and fix.
- Proland — Fullstack Developer (2022-2024): Led the build of an in-house CRM with AI-driven analytics processing 4,000+ customer interactions a month. Redesigned the landing pages across 12 core service offerings. Ran technical SEO that lowered bounce rates by 35% and lifted engagement by 37%.
- ITSS France — Web Developer (2022): Led development of 6 Drupal and 4 Next.js projects. Managed the full project lifecycle from planning to deployment.
- Quick Digital Media — Frontend Developer (2021): Built e-commerce storefronts with React, Redux Toolkit, and Tailwind CSS. Made client websites load 42% faster.
- Zaychi — Web Developer (2021): Built web applications and digital solutions for clients.
Selected Work
BookToKids — Shopify e-commerce (2026)
Parents want a book where their child is the hero, but personalised print products are slow to order and hard to preview before paying.
Built the store on Shopify with a custom theme, a Node.js backend that powers the AI-assisted personalisation flow (one photo and a name become a cover preview), and a checkout tuned for conversion.
A live store where a parent can preview the cover before checkout and receive a printed hardcover within a week.
Stack: Shopify, Liquid, Node.js, AI integration, SEO
https://booktokids.com/UYAN — E-commerce (2024)
The original store took almost three seconds to become usable on mobile, and shoppers were leaving before the catalogue loaded.
Rebuilt the frontend in Next.js with server components, streamed product data, and image optimisation across the catalogue.
Page load dropped from 2.8s to 1.2s without touching the backend.
Stack: Next.js, React, Framer Motion, Tailwind CSS, Vercel
https://uyan.vercel.app/Tag Everyone — Chrome extension · open source (2025)
Admins of large WhatsApp groups were typing @mentions one name at a time, or paying for bloated marketing tools, just to make sure an announcement reached everyone.
Built a privacy-first Chrome extension that batches mentions so even 4,000-member communities tag in under two seconds, with smart detection that skips duplicates, zero remote calls, and a landing site built to rank for the problem.
4K+ active users and 2M+ groups tagged, free and open source, on every Chromium browser.
Stack: TypeScript, Chrome Extension APIs, Next.js, SEO, Open source
https://www.tageveryone.online/ShadeAndGreen — Publishing platform · SEO, AEO & GEO (2026)
Most content sites bolt SEO on at the end, ignore answer engines entirely, and run on a CMS that fights the writer instead of helping.
Built the platform from scratch in Next.js with SEO best practice at every layer: structured data, llms.txt for AI crawlers, Core Web Vitals in the green, and an AI-assisted admin panel that drafts, optimises, and publishes faster than a traditional CMS.
A live niche site that ranks in search, is structured to be cited by AI answers, and runs on an admin panel I'd put against any CMS.
Stack: Next.js, TypeScript, AI admin panel, Structured data, llms.txt, Core Web Vitals
https://shadeandgreen.com/All Freelance Projects
- BookToKids (personalised children's books) — https://booktokids.com/
- ShadeAndGreen (Next.js publishing platform) — https://shadeandgreen.com/
- Tag Everyone (chrome extension) — https://www.tageveryone.online/
- UYAN — https://uyan.vercel.app/
- Falcon (Still Working on it) — https://falcon-xi.vercel.app/
- LeaFunder
- NewayLimo — https://newaylimo.com/
- Bookmee
- OQVT — https://qvt-app.vercel.app/
- Car Dealer — https://car-dealer-nu.vercel.app/
- Krypt — https://web-3-0-project-five.vercel.app/
Education
- 1337 School — 42 Network (2019-2024) — Peer-to-peer, project-based software engineering. No teachers, no lectures, code reviewed by peers.
- Abdelmalek Essaadi University (2018-2019) — University studies in Tangier, northern Morocco.
