Youssef H.
Rating
Language proficiency level
CV
I’m a Full Stack Web Developer with hands-on experience building scalable, secure, and high-performance web applications from concept to production. I work confidently across the entire development lifecycle, delivering solutions that are reliable, maintainable, and business-ready.
🎨 Frontend Development
I create modern, responsive, and performance-optimized interfaces using
React • Next.js • Vue • Nuxt • Angular • Svelte • TypeScript • Tailwind CSS • Sass/SCSS • Bootstrap • Material UI • ShadCN UI • Redux • Vite • Webpack.
My focus is on clean UI, smooth UX, accessibility (WCAG), and component-driven architecture that works flawlessly across all devices and browsers.
⚙️ Backend & APIs
On the backend, I build robust systems and RESTful/GraphQL APIs using
Node.js (Express, NestJS) • PHP (Laravel, Symfony) • Python (FastAPI, Django) • Go (Gin/Fiber) • REST • GraphQL • WebSockets .
I handle authentication (JWT, OAuth, SSO), business logic, background jobs, queues, and third-party integrations with a strong emphasis on security, scalability, and observability.
🗄 Databases & Performance
Experienced with MySQL • PostgreSQL • MongoDB • SQLite • Supabase • Firebase.
I design efficient schemas, indexing strategies, caching layers, and optimized queries, ensuring high availability, data integrity, and long-term performance at scale.
🔄 Workflow, DevOps & Quality
I follow professional workflows with Git • GitHub/GitLab • CI/CD (GitHub Actions, GitLab CI) • Docker • Docker Compose • Nginx • Cloud (AWS, Vercel, Cloudflare) .
I emphasize clean architecture, testing Playwright code quality, documentation, and maintainable delivery pipelines.
🚀 Additional Expertise
Performance optimization • SEO • SSR/SSG • PWA • Internationalization (i18n) • API integrations (Stripe, PayPal, Twilio, Telegram, Google APIs, Resend) • Real-time apps • SaaS architecture • Multi-tenant systems.
Skills and abilities
Programming
Services
Outsourcing & consulting
Translation
Portfolio
- All works 12
- 3D Modeling 1
- Online Stores & E-commerce 3
- Gaming Apps 1
- Website Development 2
- Web Programming 2
- Desktop Apps 1
- App Development for Android 1
- Website SEO Audit 1
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Online Pool Game.
Gaming AppsDeveloped an online billiards gaming platform that allows players to compete against real opponents in real time. The system provides matchmaking, competitive game rooms, and a realistic physics engine that simulates real pool gameplay. Users can register quickly, deposit balance via PIX, and join multiplayer matches to test their skills against other players across the platform. The website is fully responsive and optimized for smooth gameplay on desktop and mobile browsers.
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Shopify eCommerce Website for Gourmet Meal Delivery
Online Stores & E-commerceThis project involved the development and optimization of an online food delivery and gifting platform. The website allows customers to order chef-prepared meals and send them as gifts for various life events such as recovery, celebrations, or support during difficult times.
The platform provides an intuitive shopping experience where users can browse meal packages, choose portion sizes, select delivery dates, and send personalized gifts directly to recipients.
… The website focuses on user-friendly navigation, smooth checkout experience, and clear product presentation, helping customers easily choose meaningful food gifts.
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3D Metal Building Configurator Website (Interactive 3D Builder)
3D ModelingThis project is an advanced 3D metal building configurator platform that allows customers to design custom structures directly on the website.
Users can modify building parameters such as dimensions, roof styles, colors, doors, and windows while viewing a real-time 3D model and price calculation. The goal of the platform is to simplify the purchasing process and provide customers with a clear visualization of their future building.
… The website provides an intuitive interface and dynamic design tools that improve user engagement and increase conversion rates for metal building businesses.
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Fleet Management system
Web ProgrammingBuilt Truckly, a fleet and logistics coordination SaaS for gypsum transport from quarry to port. Designed and developed the full platform using Next.js with a scalable backend supporting real-time scheduling, truck assignment, and tracking. Implemented a smart scheduling engine with AI-powered fair load distribution, automated SMS notifications, and arrival verification. Delivered analytics dashboards and multi-tenant architecture to support 500+ trucks, improving coordination speed, fairness, and on-time delivery performance.
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Allegro seller fox platform
Website DevelopmentAlegro Seller Central analytics
Keyword ranking tracking
Search Query Performance Report (SQPR) analysis
Listing event monitoring
… Product and competitor KPI tracking
Exportable reports and dashboards
Agency/workspace management
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Website Responsive Design
Website DevelopmentI design and develop fully responsive websites that adapt seamlessly across mobile, tablet, and desktop devices. My work focuses on clean layouts, flexible grids, optimized images, and consistent UI/UX to ensure fast performance, accessibility, and smooth user experience on every screen size.
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CRM and Business management System
Web ProgrammingBuilt an all-in-one analytics-driven management platform for fitness and healthcare studios, centralizing bookings, scheduling, memberships, staff management, and payments. Developed a high-performance Next.js frontend with SEO optimization and responsive UX. Implemented a scalable Supabase backend with secure APIs and optimized data models. Integrated Clerk for authentication and role-based access, Stripe for subscriptions and billing automation, and real-time email, SMS, and push notifications. Delivered a production-ready SaaS improving efficiency, retention, and recurring revenue.
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Multi platfrom reading app
App Development for AndroidMobile app developer specializing in Kotlin Multiplatform, building cross-platform applications for iOS and Android. Developed an Islamic companion app that helps Muslims stay connected to their daily religious practices through Quran study, prayer tools, memorization tracking, and spiritual productivity features.
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Smart Pdf Annotating Tool
Desktop AppsApplication developer contributing to a cross-platform document productivity platform focused on advanced PDF annotation and real-time collaboration. The application enables teams to edit, annotate, share, and manage documents efficiently with form-filling, content conversion, and collaborative workflow features.
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Organic Traffic Improvement in SEMRUSH
Website SEO AuditImplemented a full-cycle SEO growth strategy using SEMrush, including in-depth keyword research, competitor and gap analysis, technical SEO improvements, site structure optimization, content strategy, on-page SEO, and high-authority link building. This resulted in sustained growth in organic rankings, domain authority, search visibility, and monthly traffic.
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Jewelry E-Commerce
Online Stores & E-commerceI worked as a Frontend & Shopify Developer, building the store from the ground up — custom theme, layout, product pages, collections, typography, and animations. The goal was simple: make the jewelry feel as beautiful online as it does in person.
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Fashion Jewelry Online Store
Online Stores & E-commerceFrench jewelry brand selling fantasy jewelry — necklaces, bracelets, earrings, and rings — with a 5-year quality guarantee, shipped across Europe. I worked as a freelance Frontend & Shopify Developer, building the store's theme and layout, product and collection pages, brand typography, and animations to give the store a clean, elegant feel that matched the brand's premium-yet-accessible identity.
Reviews and compliments on completed projects 6 1
21 May
22 USD
Bugfixing and code review
Well done work, according to the guidelines, on time. Great contact!
7 May
100 USD
We need to create a website on WP.
To be honest, I thought it would work out, but in the end, the person provided low-quality work. The margins are all crooked. The fonts are not installed. The animations do not match. We decided that we would just part ways.
24 March
137 USD
Website programming
I would like to express my very positive opinion about working with this developer. What truly stands out is their professionalism, reliability, and clear communication throughout every stage of the project. They not only understand the client’s needs very well, but also suggest practical and modern solutions that significantly improve the final product.
The code they deliver is clean, well-optimized, and aligned with current best practices. They also pay great attention to detail and show a strong commitment to continuous improvement. When quick action is required, they respond efficiently and effectively.
I can confidently recommend working with this developer — a dependable professional you can truly rely on.
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14 March
55 USD
Website programming
The best programmer. I recommend him.
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3 March
178 USD
Website programming
This is real freelancer. Works very fast, also his projects are precisive, because he pays much attention to technicalities.
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26 February
69 USD
Programming website in wordpress (amendments)
Very good programmer and professionally approached contractor. Always in contact.
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20 February
55 USD
Programming a website in WordPress on Android (fixes)
He was very excellent. He quickly identified the core of the problem and respected my opinions to complete the project perfectly. I'm proud to have worked with this developer and highly recommend him.
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Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Improve the website menu and HTML pages
100 USD
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Development of a photo book and photo frame constructor website
800 USD
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Full-stack development
2200 USD
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UI/UX of the mobile version of the bookstore website
523 USD
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Full-Stack Developer (Next.js & Supabase) — Part-Time
1600 USD
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Otomoto Parser
356 USD
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Create a client card (form) service
1371 USD
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Development of a language web application with learning logic, tests, and an admin panel
3021 USD
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E-Shop Build
1500 USD
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Integration of the website on Shopify with the Allegro marketplace
1394 USD
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