Nicolas Cellier

Cross-functional technical lead for MotionSign’s internal systems and R&D tools, spanning infrastructure, applications and data pipelines.

• Designed, operated and evolved internal and cloud Kubernetes platforms managed through GitOps with FluxCD.
• Operated data services including PostgreSQL, CloudNativePG, object and persistent storage, backups and restore procedures.
• Developed and maintained business applications in Python, TypeScript/SvelteKit and Rust/Tauri.
• Designed and hardened ingestion, synchronization, video-processing, animation and inference pipelines.
• Managed technical access, application identity, private networking, DNS, TLS and OAuth/OIDC integrations.
• Turned R&D prototypes into observable, deployable, migratable and production-ready solutions.
• Diagnosed incidents across the full chain: application, database, storage, networking and infrastructure.
• Made architecture decisions based on robustness, simplicity, cost and delivery timelines.

• Managed statistical-analysis needs: infrastructure, ETL pipeline development and automation, BI dashboards, and a decision-support tool for sizing and operating an accessible telephone platform for deaf and hard-of-hearing users.
• Explored and prototyped Data Science solutions for R&D work alongside production tools.

• Research Engineer dedicated to the ACDC project: improving call center scheduling for deaf and hard of hearing populations
• Data collection, time series prediction, discrete event simulation, scheduling

• Development of models and numerical resolution tools for two parallel projects:
• ANR FRAISE: Heat and mass transfer through a falling film.
• European OPTIWIND Project: Simulation of flow and icing of droplets on aircraft windshields