Pierre Chaisy
Senior Backend Developer at TagHeuer
Fleury-les-Aubrais, Centre-Val de Loire, France
Summary
👤
Senior🎓
Top SchoolPierre Chaisy is a Senior Backend Developer with 10 years of experience building high-performance, secure web infrastructures and leading teams through large migrations and modernizations. Based in Centre-Val de Loire, France, he has driven platform consolidations and microservices architectures (gRPC, GraphQL) while orchestrating language migrations from Python to Go at scale. He combines hands-on backend expertise—especially in Python, Flask, Postgres, Redis and Kubernetes—with technical leadership as a former CTO who managed security, GDPR and R&D tax credit processes. Pierre has a track record of improving maintainability and reducing technical debt through extensive refactoring, CI practices and observability. An active open-source contributor, he enhanced the flask-rest-jsonapi library with SQLAlchemy pagination, Marshmallow helpers and query filtering, reflecting a focus on robust API design. Pragmatic and quality-driven, he builds solutions that balance fast performance with long-term operability.
9 years of coding experience
13 years of employment as a software developer
DEUG informatique, Information Technology, DEUG informatique, Information Technology at Université Blaise Pascal (Clermont-II) - Clermont-FerrandManager de système d'information et d'infrastructure, Information Technology, Manager de système d'information et d'infrastructure, Information Technology at cs2i Bourgogne - Ecole Supérieure d'Informatique
Github Skills (14)
api-rest10
rest-api10
json-api10
sqlalchemy10
marshmallow10
python10
api-design10
flask10
restful-api10
flask-ask10
pagination9
filter9
sorting9
filtering9
Programming languages (3)
Github contributions (5)
miLibris/flask-rest-jsonapi
Oct 2016 - Feb 2021
Flask extension to build REST APIs around JSONAPI 1.0 specification.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 releases, 4 reviews, 607 commits in 4 years 4 months
Contributions summary:Pierre primarily focused on enhancing the functionality of the Flask-REST-JSONAPI library. They implemented SQLAlchemy utilities for pagination and sorting queries, improved the querystring module, and added a filter feature. The user also incorporated Marshmallow helpers for managing data serialization and relationships within the API and implemented additional hooks for custom logic.
jsonapiapipythonsqlalchemyspecification
akira-dev/json-api
Dec 2016 - Mar 2017
Contributions:2 pushes in 3 months
apispecificationjson-apisjson-schemajson
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