Support Engineer (L3), HPC Services

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.

About Mistral 

 

At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life.

 

We democratize AI through high-performance, optimized, open-source and cutting-edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise needs, whether on-premises or in cloud environments. Our offerings include le Chat, the AI assistant for life and work.

 

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 France, USA, UK, Germany and Singapore. We are creative, low-ego and team-spirited.

 

Join us to be part of a pioneering company shaping the future of AI. Together, we can make a meaningful impact. See more about our culture on https://mistral.ai/careers.

 

Role Summary 

 

We are building one of Europe’s largest AI infrastructure offering that will provide our customers a private and integrated stack (GPUs, orchestration, APIs, products and services) in every form factor they may need — from bare-metal servers to fully-managed PaaS.

 

As a Software / DevOps Engineer, you will join a fast growing team to help building, scaling and automating our computing management stack. You will be responsible for building fault-tolerant and reliable infrastructure to support both our internal processes and our customer platform.

 

Location: France 🇫🇷 (remote flexible policy)

Reporting line: HPC Software Architect

  

What you will do

 

As a Software Engineer in the HPC services team, your primary responsibility will be to engineer robust and dependable infrastructure that supports both our internal operations and customer-facing platforms.

 

Key Responsibilities:

 

• Engineer, develop, and sustain automated systems for deploying Kubernetes control planes on bare-metal infrastructure.

• Utilize programming languages such as Python, Golang, and Bash to build tools and Kubernetes operators.

• Conduct lifecycle management and ongoing maintenance for operational clusters.

• Detect vulnerabilities and implement resilient architectural solutions.

• Enhance system reliability through the Grafana ecosystem.

• Develop automated testing protocols to ensure build integrity and system stability.

• Engage in an on-call rotation every two months, acting as the primary contact for critical issues.

If you have a keen interest in GitOps, KubeOps, DevOps, and all facets of operational excellence, this position is tailor-made for you!

 

Aymeric

- Automate the full lifecycle of compute nodes, from bootstrapping to decommissioning.

- Integrate and validate new GPU hardware, switches, and storage systems (VAST, Weka, DDN).

- Design and maintain infra-level CI/CD pipelines (GitLab CI, ArgoCD, etc.).

- Deploy observability systems (logs, metrics, traces, runbooks) to ensure platform health.

- Collaborate closely with Researchers to streamline build systems and scale testing workflows.

 

Old Devops JD

Design, build, and maintain scalable, highly available and fault-tolerant infrastructures

Make sure our platform, inference and model training environments are always highly available and enable seamless replication of work environments across several HPC clusters

Operate systems and troubleshoot issues in production environments (interrupts, on-call responses, users admin, data extraction, infrastructure scaling, etc.)

Implement and improve monitoring, alerting, and incident response systems to ensure optimal system performance and minimize downtime

Implement and maintain workflows and tools (CI/CD, containerization, orchestration, monitoring, logging and alerting systems) for both our client-facing APIs and large training runs

Participate occasionally in on-call rotations to respond to incidents and perform root cause analysis to prevent future occurrences

Drive continuous improvement in infrastructure automation, deployment, and orchestration using tools like Kubernetes, Flux, Terraform

Design and develop new workflows and tooling to improve to the reliability, availability and performance of our systems (automation scripts, refactoring, new API-based features, web apps, dashboards, etc.)

Collaborate with the security team to ensure infrastructure adheres to best security practices and compliance requirements

 

About you

 

• Master’s degree in Computer Science, Engineering or a related field

• 7+ years of experience in a DevOps/SRE role

• Strong experience with cloud computing and highly available distributed systems

• Exposure to site reliability issues in critical environments (issue root cause analysis, in-production troubleshooting, on-call rotations...)

• Experience working against reliability KPIs (observability, alerting, SLAs)

• Hands-on experience with CI/CD, containerization and orchestration tools (Docker, Kubernetes...)

• Knowledge of monitoring, logging, alerting and observability tools (Prometheus, Grafana, ELK Stack, Datadog...)

• Familiarity with infrastructure-as-code tools like Terraform or CloudFormation

• Proficiency in scripting languages (Python, Go, Bash...) and knowledge of software development best practices

• Strong understanding of networking, security, and system administration concepts

• Excellent problem-solving and communication skills

• Self-motivated and able to work well in a fast-paced startup environment

  

Coreweave

Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, Kubeception, Kubespray, or similar

Demonstrated ability debugging complex kubernetes cluster issues and carrying out upgrades

Proficiency in Golang, Bash, and Python

Advanced Linux OS troubleshooting skills

Extensive experience with Ansible

Advanced DevOps experience (e.g., GitLab CI, GitHub Actions)

Demonstrated ability to collaborate effectively on shared codebases

Excellent documentation skills and high attention to detail

Strong analytical and problem-solving abilities

Experience participating in an on-call rotation to support production services

 

Your application will be all the more interesting if you also have:

• experience in an AI/ML environment

• experience of high-performance computing (HPC) systems and workload managers (Slurm)

• worked with modern AI-oriented solutions (Fluidstack, Coreweave, Vast...)

 

Location & Remote

 

The position is based in our Paris HQ offices and we encourage going to the office as much as we can (at least 3 days per week) to create bonds and smooth communication. Our remote policy aims to provide flexibility, improve work-life balance and increase productivity. Each manager can decide the amount of days worked remotely based on autonomy and a specific context (e.g. more flexibility can occur during summer). In any case, employees are expected to maintain regular communication with their teams and be available during core working hours.

 

What we offer

 

💰 Competitive salary and equity package

🧑‍⚕️ Health insurance

🚴 Transportation allowance

🥎 Sport allowance

🥕 Meal vouchers

💰 Private pension plan

🍼 Generous parental leave policy

 

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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.

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

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