Freelancer profile translated to English.
Back to original languageAbout Nasser
Is your Python backend becoming difficult to maintain?
Are your APIs slowing down or falling behind in production?
Do you want to integrate AI (LLM, RAG) into your product without complicating your architecture?
I step in to build, stabilize, and evolve robust Python backends and APIs, with a focus on performance, maintainability, and production deployment.
Python Backend & APIs:
- Development of REST APIs with Django, Django REST Framework, and FastAPI
- Design of backend architectures (SaaS applications, business APIs)
- Taking over existing code and stabilizing production applications
- Performance optimization (SQL queries, caching, code structuring)
AI Integration:
- LLM integration
- Development of RAG systems
- Automation of business processes with Python
Automation & Scraping:
- Automation of tasks and data collection with Playwright / Selenium
- Extraction of data from dynamic web applications
DevOps & Deployment:
- Containerization with Docker
- Setting up CI/CD pipelines
- Deployment of backend applications in production
Main Stack:
Python, Django, Django REST Framework, FastAPI, PostgreSQL, Docker, LangChain, LLMs, RAG, Playwright, Selenium
Here's my approach:
- Focus on production deployment (not just code, but systems that run)
- Structured, maintainable, and scalable code
- Ability to intervene quickly on an existing backend
Project Examples:
- Development of an e-commerce web application with Django backend + AI integration
- Implementation of a RAG system to automate business processes
- Automation of data collection on complex web interfaces
Availability:
- Development or evolution of REST APIs
- Python / Django / FastAPI backend support
- Performance optimization
- MVP or product evolution
- Automation
Contact me directly on Malt to discuss your project.
French
Native or bilingual
Can work on-site
Besançon (up to 50km), Lyon (up to 50km), Paris (up to 50km)
Experience
- Silence IAFull Stack DeveloperMay 2026 - June 2026 (1 month)Mission Objective:Development of a SaaS platform for analyzing speech for a professional coach, using an existing plugin provided by the client.Achievements:- Complete backend development with FastAPI, applying a modular architecture adhering to SOLID principles.- Design of a secure REST API with JWT authentication, role management (admin/client), and rate limiting.- Implementation of automated tests for business services and critical endpoints.- Rewriting and adapting the client's React plugin to integrate it with the backend and enhance functionalities.- Integration of OpenAI and Anthropic APIs for automatic analysis of speeches (transcription, scoring, personalized feedback).- Implementation of a PostgreSQL database with SQLAlchemy and Repository pattern.- Production deployment with reverse proxy configuration and an API subdomain.- Resolution of multi-browser compatibility issues related to Web Speech and MediaRecorder APIs.Technical Stack:Python, FastAPI, PostgreSQL, SQLAlchemy, JWT, React, Vite, OpenAI, Anthropic Claude, o2switch
- IndépendantPython DeveloperSeptember 2025 - Today (11 months)Mission Objective:Develop a complete e-commerce web application for a client, integrating a conversational artificial intelligence solution.Achievements:- Backend development with Django, chosen for its rapid implementation and reliability in creating an MVP allowing the client to test the market.- Integration of an intelligent chatbot based on LangChain and LLMs, offering personalized assistance to users during their navigation and purchases.- Implementation of a modular and scalable architecture, facilitating maintenance and the addition of new features.- Direct collaboration with the client to adapt the product to their business needs and validate user feedback.Technical Stack:Python, Django, LangChain, LLMs, Generative AI, RAG, PostgreSQL, Faiss.
- ZeiHomeKitchenPython DeveloperFebruary 2025 - March 2025 (1 month)Mission Objective:Develop a web application to facilitate the sharing and consultation of scientific resources for a client in the chemistry field.Achievements:- Backend development with Django, ensuring a solid and secure foundation for data and user management.- Integration of an LLM to automate certain scientific content analysis and processing tasks.- Use of Selenium to automate the collection and updating of data from external sources.- Design of an ETL process to structure, transform, and centralize information in the database.Technical Stack:Python, Django, LLM, Selenium, ETL, PostgreSQL, Git/Github, CI/CD
Reviews
Nicolas
Excellent profil - Silence.
Reviewed on 5/21/2026
Nasser was very professional and followed the mission from start to finish. Well done to him
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Education
- RNCP Level 6 TitleM2i informatique2024Concepteur Développeur d'Application
- Computer programming, specific applicationsAJC Formation2022Programmation informatique, applications spécifiques