Étienne Lécrivain

Architected and deployed AWS infrastructure for a SaaS platform, ensuring high availability, scalability, and compliance with ethical and security standards of the French legal sector. Designed and automated CI/CD pipelines, securing and streamlining deployment workflows to support reliable, continuous delivery for thousands of daily users. Built secure file-sharing and AI-processing workflows, including OCR pipelines, RAG systems, and sovereign cloud infrastructure under strict privacy and European AI governance requirements. Monitored production systems, investigated incidents, and implemented reliability improvements to reduce downtime.

Developed advanced pixel spectroscopic simulation software for the NISP instrument aboard the ESA Euclid Space Telescope, designed to simulate 1/3 of the observable universe with high accuracy to support dark matter research. Built a spectroscopic pipeline, for rapid validation of performance and scientific accuracy. Improved simulations in alignment with enhanced instrument characterization and the adoption of new models. Collaborated to integrate systems into Euclid’s Scientific Ground Segment, aligning large‑scale simulations with hardware and scientific workflows.

Contributed to the development of a new cutting‑edge global wildfire forecasting, monitoring, and assessment system as part of a 6‑member team. Designed and operated Python‑based data pipelines, efficiently handling large‑scale datasets from multiple satellite constellations, to enhance reliability and improve data refresh rates. Designed and implemented a global live wildfire monitoring system. Developed a near‑real‑time wildfire damage assessment system by integrating high‑resolution satellite imagery with advanced machine learning models. This work is now used by the French government to inform wildfire prevention and response efforts, and later nominated as one of TIME’s Best Inventions of 2025.

I founded, with 2 partners, a free and easy‐to‐use platform to connect volunteers and people in need of help during the COVID‐19 pandemic. Co-llectif is a platform bringing together volunteers and people needing help with their groceries. The service, which is free of charge, is aimed at medical or associated staff, their patients, people at risk and the over-60s. Laureate of the EUvsVirus hackathon organised by the European Commission, in the category ”Protection of isolated & risk groups”. This project was supported by the AWS Activate Startup program, Ouest Industries Creatives and the COVID-19 platform of the European Innovation Council.