Freelancer profile translated to English.
Back to original languageAbout Taha
Hello 👋🏼 I'm Taha, a freelance Full-Stack developer specializing in TypeScript, React, Node.js, and NestJS.
I help startups and SMEs build MVPs, SaaS applications, or refactor existing solutions, with an approach focused on quality, efficiency, and user experience.
💡 What I Offer
- Front-End Development:Modern, responsive, and fluid interfaces.
- Robust & Secure Back-End:Reliable and performant architecture to manage your data and users.
- MVP & SaaS Design:From idea to production, with an architecture designed to scale.
- API Integration:Seamless connection with third-party services to enhance your application.
- UI/UX Design:Creation of mockups and interfaces consistent with your visual identity.
- Consulting & Support:Assistance with functional scoping, technical choices, and project organization.
🛠️ Stack & Tools
- Languages & Frameworks:TypeScript, JavaScript, React, NestJS, NodeJs
- Databases:PostgreSQL, Prisma, MongoDB
- DevOps Tools:Git, Docker, Vercel, GitHub Actions
- Design & UI:Figma, TailwindCSS
🔁 My 4-Step Methodology
- Kick-Off:Understanding your needs, challenges, and constraints.
- Scoping & Design:Developing mockups, specifications, and technical choices.
- Agile Development:Short sprints, regular deliverables, continuous feedback.
- Deployment & Monitoring:Optimized delivery, post-launch support, potential evolutions.
🎯Why Collaborate With Me?
- Comprehensive approach: development, product, design, and DevOps.
- Fluid and responsive communication.
- Clear, results-oriented methodology.
- Experience on diverse projects: sports, tech, education, SaaS.
📩 Have a project to realize or an app to evolve?
Let's discuss it!
French
Native or bilingual
English
Fluent
Korean
Basic
Spanish
Conversational
Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Toulouse (up to 50km), Marseille (up to 50km)
Experience
- Hellio SolutionsFullstack DeveloperENVIRONMENTALMay 2026 - Today (3 months)Clichy, FranceFull-Stack Developer at Hellio, a player in the energy transition. I work on the B2B platforms for the Energy division: customer portals, billing tools, and internal business applications, from design to production.My Missions:Full-Stack Development:
- Design and development of REST APIs with NestJS and TypeScript, in a modular architecture (controllers, services, DTOs, typed and internationalized error handling).
- PostgreSQL database modeling and evolution with Prisma.
- Development of React interfaces (Vite, TypeScript, Ant Design, TanStack Query): filterable tables, complex forms, document imports and exports.
- Participation in architectural decisions and code reviews.
Integration & Interoperability:- Integration of Salesforce CRM as the business data source (SOQL queries, standard and custom objects, secure incoming webhooks).
- Optimization of third-party service access: caching, parallelization, and call grouping.
- Integration of transactional emailing and application monitoring services.
Billing & Document Generation:- Development of a compliant energy invoice generation pipeline, from structured data flow to PDF (headless rendering engine, templates, regulated tariff breakdown).
- Sequential legal numbering and secure document lifecycle against concurrent processing.
Security & Authentication:- JWT authentication in httpOnly cookie, sliding sessions, rate limiting.
- Account activation and password reset flows.
- Delegated access between systems via signed tokens, data partitioning by user.
Quality & Deployment:- Unit and end-to-end tests (Jest, Supertest) with high coverage requirements.
- Docker containerization and GitHub Actions CI/CD pipelines, continuous deployment on Docker Swarm.
- LegalNovaFullstack DeveloperLEGALNovember 2025 - Today (9 months)Paris, FranceAs a Full-Stack Developer on LegalNova, I participated in the design and development of a LegalTech SaaS platform allowing entrepreneurs to create and manage their legal files in collaboration with accountants and legal professionals.My Missions:Full-Stack Development:
- Modern Architecture: Design of a complete web application with Next.js 16 (React 19) on the frontend and NestJS on the backend, all typed with TypeScript to ensure code robustness.
- Database: Modeling and implementation of a PostgreSQL relational schema with Prisma ORM, managing legal files, companies, documents, and multi-step workflows.
- REST API: Development of an API documented with Swagger, integrating JWT authentication, role management (Client, Accountant, Admin), and endpoint security.
Business Features:- Legal File Management: Implementation of a complete system for company creation (SARL, SARL-AU), trademark registration, statutory modifications, and contract drafting with real-time progress tracking.
- PDF Document Generation: Development of a legal statutes generation engine with Puppeteer and Handlebars templates, automating the creation of official documents.
- Collaboration System: Creation of an exchange space between clients and accountants with document upload (Cloudinary), internal/public notes, and trademark availability checks.
Automation & Communication:- Email Notifications: Setup of 13+ HTML email templates (Nodemailer) for confirmations, status updates, and document alerts.
- CI/CD: Configuration of a GitHub Actions pipeline with code verification (Prettier, ESLint), Jest tests, and automated builds.
- Big Bear Boxing GymFullstack DeveloperSPORTSMarch 2025 - Today (1 year and 5 months)Séoul, South KoreaAs a Full-Stack Developer at BigBearBoxing, I led the creation of a mobile application for boxing enthusiasts in South Korea. This project allowed me to develop a complete mobile solution, from initial design to production, considering the cultural and functional specificities of the local market.My Missions:Complete Mobile Development:
- User Interface Creation:Design of an intuitive and responsive UI, tailored for the South Korean audience's usage habits.
- Key Features:Integration of modules for training tracking, user profile management, and a personalized calendar synchronized with user preferences.
Secure Back-End Architecture:- API and Database:Implementation of a robust, secure, and scalable back-end to manage user data (training, accounts, settings).
- Authentication & Local GDPR:Implementation of a secure authentication system, compliant with local best practices.
Deployment and Post-Launch Monitoring:- App Store Publishing:Deployment on Android and iOS platforms with build optimization and pre-release testing.
- User Feedback:Collection of user feedback and continuous improvement of the application through rapid iterations.
Reviews
Recommendations
+8
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Education
- Software Engineering Expert (Master's Degree)Epitech Paris- Cursus BAC +5 - Pédagogie par projet - Gestion de projet & projets de groupe - Méthode agile & TDD - Langages: - C - C++ - Python - Docker - Javascript - Node js - TypeScript - React - React Native - Jenkins - Postgres - Git
- Bachelor in Information Technology (Bac +3)Epitech Paris2024Développement C - Développement C++ - Développement JS (React, Next, Node) et Typescript - Développement Python - Développement PHP
Certifications
- Bachelor in Information Technology (Bac +3)Epitech2024
- Scientific Baccalaureate with SIN Option (Digital Information Systems)Éducation Nationale2021