Senior Frontend Engineer
Sovereign AI infrastructure company designing, building and operating AI factories and GPU cloud services across Europe.
About Sesterce
Sesterce (Sesterce SAS, Paris) builds sovereign AI factories end to end: clean energy under long-term PPAs, Tier III+ direct-to-chip liquid-cooled facilities, NVIDIA GB300/H200/B200 silicon, non-blocking 800 Gb/s InfiniBand fabric, and the Slurm/Kubernetes-native Sesterce OS. It also offers an on-demand GPU cloud and AI inference endpoints, including a EUR 450M AI data center in Valence and a 1 GW Bosquel campus developed with SoftBank Group.
Skills
About the Role
You will build and operate sovereign AI infrastructure for production customers across Europe. You will own high-impact work across product surfaces, fleet dashboards, customer workflows, and operational user experience. You will improve reliability, delivery speed, and operational clarity across sites while partnering with engineering, infrastructure, operations, and customer teams.
Requirements
- Strong experience in frontend engineering or an adjacent technical field
- Clear written communication and comfort working with infrastructure teams
- Pragmatic judgment in production environments where reliability matters
Responsibilities
- Own high-impact work across Sesterce OS product surfaces, fleet dashboards, customer workflows, and operational UX
- Partner with engineering, infrastructure, operations, and customer teams
- Improve reliability, delivery speed, and operational clarity across Sesterce sites
