Yassine ElHana
Fullstack Developer & QA Automation
Salaire / Taux journalier
Paris, France
Mobilité : Paris, Lyon, ...
Freelance
Peut venir sur site
Expertises
Langues
À propos
Introduction
Full-Stack Developer and QA Automation Engineer with experience building modern, reliable, and scalable web applications. I combine software engineering with a strong quality-driven mindset, enabling teams to ship stable features faster and with higher confidence. I’ve contributed to end-to-end product development, from frontend and backend engineering to automated testing, CI/CD, and performance optimization. I enjoy designing systems that are robust, maintainable, and aligned with real produc
Expérience de travail
SaaS Developer
Mosaïque
juin 2025 - oct. 2025
5 mois
À distance
Complete SaaS application for QR code generation and management with Stripe subscription system, advanced analytics, user management and high-level security. 🎯 Key Achievements • Built a full SaaS platform with QR code generation and customization • Implemented a Stripe-first subscription & billing system • Developed advanced analytics with geolocation tracking • Designed distributed rate limiting using Redis • Delivered a complete admin dashboard with secure role management • Built and secured a REST API with Zod validation • End-to-end architecture: frontend, backend, database, caching, security & monitoring 🛠 Tech Stack Next.js 15 • React 19 • TypeScript • Prisma ORM • PostgreSQL (AWS RDS) • Redis (Upstash) • Stripe • TailwindCSS • Zod 🏗 Architecture Frontend: Next.js 15 + Tailwind 4.0 Backend: API Routes + Prisma ORM Database: PostgreSQL (AWS RDS) Cache: Redis (Upstash) with rate limiting Monitoring: Real-time Discord alerts 🔐 Security & OpSec • Redis-based rate limiting on all endpoints • Systematic Zod schema validation • Secure headers + CSRF protection • Real-time production monitoring
Quality Assurance Analyst
Le Collectionist
oct. 2023 - oct. 2024
1 an 1 mois
Paris, France
Deployed QA processes to ensure release stability. Developed Python web app with REST API for backend testing and frontend automation with Cypress. 🎯 Key Achievements: • QA Processes: Release stability implementation • Python App: Web app + REST API for backend tests • Automation: Frontend tests with Cypress • Agile: Sprint participation & daily stand-ups
Development intern
Opinaka
déc. 2020 - déc. 2020
1 mois
Montpellier, France
Developed interactive web components for WordPress using SvelteJS, enabling dynamic UI modules integrated into existing pages and client sites. Worked on reusable component design, data integration and visual optimization, ensuring consistency with the platform’s UX. Collaborated with the team to implement lightweight front-end features and improve rendering performance. Key Contributions • Built custom SvelteJS modules integrated into WordPress • Implemented reusable and responsive UI components • Connected components with dynamic data sources • Optimized visual rendering and user experience • Worked closely with designers and developers to ensure consistency
Formation
CESI
Bachelor's degree, Computer Science
2023 - 2024
1 an 1 mois
Ifide supformation
Higher National Diploma (HND/BTS), Computer Science
2019 - 2021
1 an 11 mois