Software Engineer (Golang), Fleet Delivery

Mistral; Paris; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Healthcare coverage

Parental leave

Retirement plans

Relocation support

Wellness programs

Meal and transportation allowances

Other location-specific perks

Job summary

Mistral is seeking an experienced backend/infrastructure engineer to join our datacenter software team. You will turn arriving hardware into accepted clusters, automate validation and deployment, and drive time-to-acceptance from weeks to hours on European scale.

You will work on Go-based delivery pipelines, deep Linux systems, and hardware-software integration, with hands-on work on datacenter floors and in software architecture. Travel to datacenter sites as needed.

Qualifications

• 5+ years building backend or infrastructure systems.
• Deep Linux understanding and comfortable below the application layer.
• Shipped production systems in Go.
• Willing to travel to datacenter sites when required.
• Hardware fluency: read parts lists and topology diagrams.

Responsibilities

• Build the delivery pipeline in Go: provisioning, configuration, validation, burn-in, network bring-up, software stack install.
• Own time-to-acceptance and drive it down relentlessly — measure it, break it down, kill the slowest step first.
• Work shoulder-to-shoulder with Hardware Design and Fleet Health — reliability starts at delivery.
• Handle GPU fleets at scale: H100 and GB200-class nodes, InfiniBand and RoCE fabrics, and the failure modes they bring.
• Partner with Product Managers and the datacenter org to plan delivery waves against capacity commitments.

Skills

Go production

Deep Linux

Backend/infrastructure

Hardware fluency

Team collaboration

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 TEAM

Mistral is building a sovereign AI cloud for Europe. Our customers in finance, healthcare, and the public sector run frontier models on European-jurisdiction infrastructure, and the Cloud Platform team builds the systems that make that possible — compute orchestration, Kubernetes, bare metal, storage, networking, and the datacenter fleet that runs it all.

European Compute Units let enterprises commit to multi-year capacity on that infrastructure, and we are scaling toward a gigawatt of compute across Europe by 2030. You will design and ship the layer every sovereign AI deployment depends on.

THE ROLE

A datacenter is not a cloud until software makes it one. You will build the software that turns arriving hardware into accepted clusters.

Cabling validation, burn-in, firmware, deployment validation, software stack install — all of it automated, none of it click-ops. Your KPI is time to acceptance: the hours between a rack being physically installed and it serving customer workloads. Across the industry that number is measured in weeks. You will drive it toward days, then hours, as we scale toward a gigawatt of compute across Europe.

This is a hands-on engineering role at the intersection of hardware and software. Most of your time in the code and the architecture, some of it on datacenter floors, because the automation has to survive contact with the machines it runs on.

What You Will Do

• Build the delivery pipeline in Go: provisioning, configuration, validation, burn-in, network bring-up, software stack install.
• Own time-to-acceptance and drive it down relentlessly — measure it, break it down, kill the slowest step first.
• Work shoulder-to-shoulder with Hardware Design and Fleet Health — reliability starts at delivery.
• Handle GPU fleets at scale: H100 and GB200-class nodes, InfiniBand and RoCE fabrics, and the failure modes they bring.
• Partner with Product Managers and the datacenter org to plan delivery waves against capacity commitments.

What We're Looking For

• You have automated bare-metal fleets — you have written the software that turns racks into clusters. If you have done it by hand, you resented it and scripted it.
• Hardware fluency: servers, GPUs, NICs, switches, firmware — you can read a parts list and a topology diagram.
• 5+ years building backend or infrastructure systems.
• Deep Linux: you are comfortable well below the application layer.
• You have shipped production systems in Go. Not dabbled. Shipped.
• Willing to travel to datacenter sites when the work demands it.
• A low-ego, team-first mindset. We care less about your exact domain and more about whether you are the kind of technical force other engineers want to work alongside.

What we offer

• healthcare coverage
• parental leave
• retirement plans
• relocation support
• wellness programs
• meal and transportation allowances
• other location-specific perks

For the most up-to-date details on benefits available in your location, please refer to our Benefits page.

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