Freelancer profile translated to English.

Description

Python Developer | FastAPI | RabbitMQ

Do you need areliable backendthat is performant and scalable without technical debt? Too many backend projects become difficult to maintain, slow to evolve, or fragile in production. My role is to build a clear and robust technical foundation, designed to last and support your product's growth.

I am abackend developerspecializing in **Python**, focused on creating APIs with **FastAPI**. I assist startups, SMEs, and product teams with backend projects from scratch or by taking over existing ones. My approach is pragmatic: understand your business challenges, design a simple architecture, and deliver a usable backend quickly.

I have worked on production-readyREST APIsfor web applications and internal tools. I implement synchronous and asynchronous architectures, including business process management with **RabbitMQ**, to ensure reliable processes, improve performance, and decouple services.

I handle the entire backend scope: architecture design, development, business logic, data access, testing, and production deployment. I also work on improving existing backends: refactoring, optimization, security, and adding new features.

On the deployment side, I useDockerto ensure consistent environments and implementCI/CD pipelinesto automate testing and deployments. This leads to long-term reliability, speed, and peace of mind.

If you are looking for aPython backend developerwho can secure your technical foundation and support your product goals, let's talk.

Ready to collaborate on your Python project?

I offer an initial video call to define your needs and respond quickly. Contact me to get your project started under the best conditions.

Industry field of expertise

Languages

English
Fluent
French
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km), Lille (up to 50km)

ACTEE
Lead Backend & DevOps Developer
PUBLIC SECTOR
July 2025 - Today (1 year and 1 month)
Paris, France
Lead Backend & DevOps Developer — Lauréat V2 (Public Grant Platform)

Lead Developer forLauréat V2**, a national platform enabling local authorities to submit and manage **grant applications for the energy renovation of public buildings**, as part of the **ACTEEprogram, sponsored by **FNCCR**.

Key Responsibilities & Achievements:
• Design andfrom-scratchdevelopment of the backend API (**FastAPI** / **PostgreSQL**), the platform's core business logic.
• Comprehensive structuring of the backend architecture: security, performance, scalability, and maintainability.
• Implementation of acomplete GitLab CI/CD pipelinewith automated deployment onScalingo(linting, testing, security scans, deployment).
• Implementation of arobust testing strategy(unit & functional) with **85% code coverage**.
• Deployment of isolatedReview Appsper merge request (frontend, backend, database) to expedite reviews and secure production deployments.
• Automation of dependency management viaRenovate(frontend & backend).
• Integration ofTrivyfor continuous vulnerability detection on Docker images and code.
• Leading technical workshops andupskilling teamson backend and DevOps best practices.

Technical Environment:
Python · FastAPI · PostgreSQL · Docker · GitLab CI/CD · Scalingo · Trivy · Renovate · pytest · Scrum · Playwright
FastAPI PostgreSQL Docker DevOps Tech Lead
Payplug
Senior Python Developer
BANKING AND INSURANCE
June 2024 - July 2025 (1 year and 1 month)
Paris, France
Senior Python Developer — Payplug (BPCE Group) — Paris

Senior Python Developer at **Payplug**, a fintech specializing in payment services and a major player in online payments in France, part of the BPCE group.

Key Responsibilities & Achievements:
• **Unification of Payment Systems**: Key contribution to integrating payment operations into a new internal solution aimed at merging two historical information systems.
• **Distributed Processing of Critical Transactions**: Design, development, and optimization of a Python worker responsible for managing payment flows in a distributed environment with high business criticality.
• **Scalability & High Performance**: Management of system resilience and load capacity, capable of processing ~75,000 messages per hour with low latency and high availability.
• **Reliability & Robustness**: Continuous improvement of payment processing stability in a context of high financial and regulatory stakes.
• **Real-time Observability & Monitoring**: Implementation and operation of monitoring tools (Datadog, Prometheus, ELK, Grafana, Sentry) for performance tracking and proactive incident detection.
• **Agile Work Environment**: Close collaboration with product and technical teams within a Scrum framework, with a high standard for quality and security.

Technical Environment:
Python · RabbitMQ · PostgreSQL · Docker · GitLab CI · pytest · mock · Prometheus · Grafana · ELK · Datadog · Sentry · Scrum · Jira
Python PostgreSQL RabbitMQ Docker Backend Development
Axione
Python Lead Developer
TELECOMMUNICATIONS
January 2022 - March 2024 (2 years and 2 months)
Malakoff, France
Lead developer in a team created upon my arrival. 1 Product Owner, 2 developers, and myself to build a team for migrating old projects (legacy) from various languages to Python microservices.

I recruited 2 developers to join the team to help us achieve our goals. I was responsible for recruitment and candidate qualification. We created new projects, CI/CD, while ensuring development quality through unit tests (code coverage > 97%).

I also organized various team events, such as pair programming and tech-share sessions (thirty-minute presentations on technical topics).
FastAPI Apache Kafka Tech Lead Lead Developer Docker