Freelancer profile translated to English.
Back to original languageAbout Romain
Python Backend Expert | Django, API & AI Integration
Are you looking for aPython backend expertcapable of building a scalable architecture, integrating your AI pipelines, and eliminating your technical debt?
During the growth phase, a poorly architected backend or one that cannot absorb new features hinders your product's evolution. I assistVSEs**, **SMEs**, and **agenciesin building sound technical foundations or rectifying existing ones. My goal: to make your backend a reliable growth engine.
My expertise at your service:
- **MVP Creation**: Design and development of your product from the first line of code to production.
- **Refactoring**: Stabilizing unstable backends, optimizing performance, and managing technical debt.
- **AI Integration**: Industrializing AI pipelines (RAG, asynchronous processing) to integrate them into your business workflows.
- **Technical Partnership**: Global support, from architectural thinking to Cloud deployment.
With over 5 years of experience, I have designed and secured backends in very different environments (cybersecurity, web development agencies, biotechnology). My approach is service-oriented: I decouple business logic from the framework to ensure code that is **easy to test, maintain, and evolve**.
My tech stack:
- Python:Django**, **Django REST Framework (DRF)**, **Channels**, **Celery**, **Pydantic
- Data/Cache:Pandas**, **PostgreSQL**, **Redis
- Frontend:DaisyUI**, **HTMX**, **Alpine.js
- DevOps/Infra:Docker**, **AWS**, **Ansible**, **CI/CD
Do you have a new project to launch or an existing infrastructure to stabilize?
Send me a brief overview of your current challenges. I willrespond within the hourto propose an initial technical approach aligned with your objectives.
French
Native or bilingual
English
Fluent
Can work on-site
Lorient (up to 50km), Vannes (up to 50km), Rennes (up to 10km), Quimper (up to 50km)
Experience
- Agence de développement Web et MobilePython/Django Backend DeveloperSOFTWARE PUBLISHINGApril 2026 - April 2026Lorient, France→ Mission: From-scratch backend development of a solution integrating **AI processing pipelines**.→ Achievements:
- Design and development of REST APIs withDjangoand **DRF**, bringing strong expertise in architectural choices.
- Implementation of a secure authentication system usingJWTtokens, integrating standard login flows and Google SSO.
- Integration and orchestration of an asynchronous pipeline for AI file processing, ensuring task scalability viaCeleryand **Redis**.
- Active participation in code reviews and maintaining a high level of technical rigor (strict static typing with Mypy, advanced linting) to ensure robust and maintainable code.
→ Tech stack: Python, Django, DRF, Celery, Redis, PostgreSQL, Docker, Mypy - Solabia GroupFullstack DeveloperBIOTECHSeptember 2024 - January 2026 (1 year and 4 months)Paris, France→ Mission: Design, develop, and deploy aweb applicationfor counting Escherichia coli and intestinal enterococci in water quality control.→ Achievements:
- Complete backend design withDjangoand frontend withDaisyUI**, **HTMX**, and **Alpine.js(authentication, business logic, results management, automatic email).
- Setup ofAWSinfrastructure andCI/CDautomation.
- Operational and security maintenance of the platform (monitoring, security updates).
→ Tech stack: Python, Django, Celery, Redis, Linux (Debian), Ansible, Docker, AWS, HTMX - SATT Ouest ValorisationTech Lead / Python Backend DeveloperSOFTWARE PUBLISHINGJuly 2024 - January 2026 (1 year and 6 months)Lorient, France→ Mission: Technical leadership of a Deeptech platform in cybersecurity for embedded systems.→ Achievements:
- Technical reference for architecture, development best practices, and team support.
- Design of a modular and resilient backend withDjangoand use ofCeleryfor asynchronous analysis task processing.
- Implementation of aCI/CDpipeline integrating automated security tests.
→ Tech stack: Python, Django, DRF, Celery, Redis, PostgreSQL, Docker, Ansible, Linux (Debian)
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Education
- Master in Complex Systems EngineeringUniversité Bretagne Sud2020Master Ingénierie des Systèmes Complexes
- Bachelor's Degree in Computer ScienceLa Rochelle Université2018Licence Informatique