Lothaire Epee

Delivered custom web solutions for business and product websites supporting product launches and online sales.

Full Stack Developer on SaaS platforms in the energy sector, supporting product configuration, pricing, and customer self-service applications.

I was responsible for developing backend services (Django/Python, REST APIs) and frontend features (React/TypeScript), including dynamic pricing systems, contract management, and role-based access control (RBAC, OAuth, JWT). I also contributed to performance improvements through asynchronous processing and implemented automated testing (unit and end-to-end).

My work supported production systems handling real-time energy data and customer operations, improving platform reliability and enabling scalable product configuration and pricing workflows.

At the Socio-Political Data Center (CDSP) at Sciences Po, I worked as a Full Stack Developer on WPSS, a web application designed to manage survey panels at a European scale as part of the ESS project .

I was responsible for developing backend (Django/Python) and frontend features, including sample management, email/SMS campaign workflows, and response tracking. I also contributed to integrating external tools (Qualtrics), implementing role-based authentication, and structuring relational data using ORM.

My contributions supported a production platform used by over 10,000 participants across 12 countries, with more than 100,000 messages sent and 15 survey waves successfully managed.