Critical Infrastructure Engineering Lead

Job summary

Responsibilities

Serve as Mistral AI’s senior technical authority for critical electrical, mechanical and life-safety infrastructure across assigned colocation sites. Protect the availability of high-density AI compute by identifying technical risks before they become incidents, challenging infrastructure…

• Participate in design and constructability reviews for expansions, retrofits and new AI deployments; flag operational, maintainability and resilience concerns early.
• Review commissioning and integrated systems testing plans, including power transfers, redundancy scenarios, controls failure modes, cooling recovery and operational readiness…
• Challenge test results and acceptance evidence against defined electrical, thermal and operational requirements; track unresolved technical issues through handover.
• Partner with IT Operations on rack power and thermal limits, direct-to-chip liquid cooling, coolant distribution unit boundaries, leak response and load-restoration dependencies.
• Assess proposed changes to critical infrastructure, including concurrent maintenance, controls updates and brownfield works; recommend safeguards and escalation where exposure is…

What they're looking for

• 5–7+ years in critical facilities engineering, commissioning, data center operations or technical assurance in high-availability environments.
• Strong practical knowledge of critical electrical infrastructure (UPS, generators, MV/LV distribution, switchgear and protection) and mechanical systems (cooling plant, pumps…
• Ability to review single-line diagrams, operating sequences, technical procedures, maintenance plans, commissioning evidence and root-cause analyses.
• Demonstrated experience troubleshooting complex infrastructure incidents and influencing external technical teams without direct line authority.
• Clear written and verbal English communication, sound judgment under pressure and willingness to travel and participate in incident escalation as needed.

Tech stack

• Transformers