Data Center Hardware Engineer

Mistral.ai

Bessé-sur-Braye

On-site

EUR 60,000 - 90,000

Full time

3 days ago

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Benefits offered by this job

Healthcare coverage

Parental leave

Retirement plans

Relocation support

Wellness programs

Meal allowances

Transportation allowances

Job summary

Mistral.ai in France seeks a Data Center Hardware Engineer to keep GPU/CPU clusters healthy, safe and growing—hands-on, in the data center, at the intersection of HPC and physical infrastructure.

You’ll diagnose and repair server hardware, manage parts, and contribute scripts to improve monitoring and SOPs while collaborating with a small on-site team.

Qualifications

Hands-on comfort in data centres or server hardware.
Ability to work in a 24/7 operation with on-call rotation.
Basic Linux knowledge; scripting is a plus.
Physically able to work in racks in a data centre environment and lift/mount as needed.
Driver's license (B) for travel between sites.

Responsibilities

Diagnose & repair server and cluster hardware: CPUs, memory, drives, NICs, GPUs, PSUs, and interconnect problems.
Manage parts: receive, label, and track inventory; run RMAs and coordinate with vendors.
Feed recurring anomalies into monitoring, alerts and SOPs; contribute small scripts.

Skills

Data center hardware

Linux basics

Python scripting

Bash scripting

On-call rotation

Driver's license

Tools

Jira

ServiceNow

Job description

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector, co-creating customized AI systems that they can run on their terms. We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.

The mission

You will work every day on the racks that power one of France's largest AI clusters. Mistral's compute footprint is our single largest investment and the foundation of our AI research and engineering. We're hiring Data Center Hardware Engineers to keep our GPU/CPU clusters healthy, safe and growing - hand-on, in the data center, at the intersection of high-performance computing and physical infrastructure. You'll join a small, senior team working at a scale few engineers get to experience: GPU-dense racks (H100/H200-class and next-generation platforms), high-speed interconnects, liquid-cooled systems - with new sites under development in France and beyond. Hardware here is not someone else's problem. As part of a small on-site team, you carry responsibility for it end to end.

Location

On-site at one of our data center in Bessé-sur-Braye, Pays de la Loire.

What you'll do

Diagnose & repair server and cluster hardware: CPUs, memory, drives, NICs, GPUs, PSUs, and interconnect problems (switches, cables, transceivers; Ethernet/InfiniBand). Intervene safely - power-off/lockout, ESD discipline, pre/post-work checklists, tidy and safe work areas. Capture everything - photos, serials, test results; open, update and close tickets with notes the next engineer can act on. Manage parts - receive, label and track inventory; run RMAs and coordinate with vendors. Help us get better - feed recurring anomalies into monitoring, alerts and SOPs; contribute small scripts (Python/Bash) if you have those skills. Be a good teammate - clear status updates, honest handovers, and respect for the people depending on the cluster.

About you

Hands-on comfort in data centres or server hardware - you can (or will quickly learn to) work cleanly in racks: rails, cabling, labeling, mounting. Disciplined and meticulous: checklists aren't bureaucracy to you, they're craftsmanship. Practical electrical basics: power-off procedures, PPE, short-circuit risk awareness. Basic Linux (boot checks, logs) - scripting is a plus, not a requirement. Physically able to work in racks (lift, mount, maneuver) in a data centre environment. Comfortable in a 24/7 operation, including a rotating on-call with emergency response expectations. Driver's licence (B) for travel between our sites. Even if you don't match every criterion Many of our best hardware engineers came from research labs, telecoms, IT services or the military. If you are rigorous, curious and genuinely motivated by hardware at scale, we would be glad to hear from you - we assess demonstrated scope rather than keyword matching.

Nice to have

HPC/AI/cloud production experience at scale; large-fleet server install and maintenance. Networking fundamentals (Ethernet/InfiniBand) beyond basics. Vendor/RMA tooling, ticketing (Jira/ServiceNow), inventory systems. Python/Bash automation for checks, capture, inventory or reporting.

What We Offer

We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.

Benefits