Freelancer profile translated to English.

Description

Python Back-End Developer (Django/Flask) with over 4 years of experience in developing robust REST APIs, managing SQL databases, and deploying containerized environments with Docker.

Independent and rigorous, I have worked in Agile environments with CI/CD, Docker, and Cloud (AWS, GCP) and have a strong ability to take over existing projects to improve their structure, performance, and maintainability.

Languages

French
Native or bilingual
English
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

Apiday
Freelance Back-End Developer
November 2025 - Today (7 months)
Environment:
Python 3.13, Django 5, Django REST framework, PostgreSQL,
Docker, Github CI, Sentry, GCP

Achievements:
Design and addition of new API endpoints, compliant with internal standards and product needs.
Improvement and extension of existing endpoints to integrate new business functionalities.
Optimization of backend code to reduce the number of SQL queries and improve the performance of key endpoints.
Implementation and strengthening of unit test coverage.
Addition of performance tests to identify bottlenecks and validate implemented optimizations.
Participation in the improvement of code quality (refactoring, code review, best practices).
Django Django Rest Framework PostgreSQL Python
Karos
Back-End Developer
December 2021 - October 2024 (2 years and 10 months)
Paris, France
Environment:
Python 3.10, Django 4, Django REST framework, MySQL, Docker,
Github CI, Sentry, GCP, GCP Cloud Tasks, GCP Cloud Storage

Achievements:
Improvement and maintenance of a Django REST API used by 500,000 active users across three mobile applications.
Security via reCAPTCHA and addition of a two-factor authentication system.
Implementation of unit tests for existing code and integration of test-driven development (TDD) practices.
Participation in legacy code takeover, modular refactoring, and reduction of response time (from several seconds to less than one second for the most complex requests).
Design and development of new features and endpoints in collaboration with designers and mobile developers.
Integration of a third-party carpooling proof certification service, with creation of PDF documents intended for the government, stored in Cloud Storage.
Implementation of a third-party entity verification service via official documents.
Management of GDPR compliance.
Migration and optimization of SQL databases to improve overall performance.
Django Django Rest Framework MySQL Docker Python
Geneanet
Back-End & Web Scraping Developer
August 2017 - November 2021 (4 years and 3 months)
Paris, France
Environment:
Python 2/3, SQLAlchemy, Flask, MySQL, GitLab CI, AWS, Amazon
SQS, Amazon Cloud Storage S3, NLP

Achievements:
Development of a REST API for a genealogical research service used by tens of thousands of users.
Implementation of a pipeline for receiving, anonymizing, and storing genetic files in S3, in compliance with GDPR.
Integration of an internal genetic analysis system with storage of results in MySQL.
Addition of new features for an internal scraping service feeding a genealogical search engine.
Development of modules for automatic image extraction and categorization.
R&D in NLP applied to genealogical archives (analysis and exploitation of historical texts).
R&D in Machine Learning for the detection of new genealogical relationships from heterogeneous data.
Training of an apprentice.
flask MySQL Python SQLAlchemy