Software Engineer, Compute Infrastructure

Mistral AI; City Of London; Hybrid; GBP 60,000 - 85,000; Full time

Job summary

An innovative AI company based in London is seeking a Software Engineer to develop and manage a scalable Infrastructure. The ideal candidate should have proficiency in Golang, significant experience with Kubernetes, and strong problem-solving skills. This role offers a competitive salary, equity, and health benefits while promoting a flexible work environment with both remote and in-office collaboration.

Benefits

Competitive salary and equity

Health insurance

Transportation allowance

Sport allowance

Meal vouchers

Private pension plan

Generous parental leave policy

Visa sponsorship

Qualifications

• Strong proficiency in software development (preferably Golang).
• Successful experience in an Infrastructure Engineering role.
• Deep understanding of Kubernetes internals.
• Familiarity with infrastructure-as-code tools.
• Knowledge of monitoring and observability tools.

Responsibilities

• Design and operate a scalable Kubernetes-based platform.
• Own the full lifecycle of cluster management.
• Drive infrastructure innovation with optimized workflows.
• Champion a zero-trust security model for platform safety.
• Develop user-centric features for smoother operations.

Skills

Software development proficiency (Golang)

Infrastructure Engineering experience

Understanding of Kubernetes internals

Containerization tools knowledge (Docker, Kubernetes)

Infrastructure-as-code tools familiarity (Terraform, CloudFormation)

Monitoring and observability tools knowledge

Distributed systems experience

Problem-solving skills

Communication skills

Self-motivation

Tools

Kubernetes

Docker

Terraform

Prometheus

Grafana

Job description

About Mistral

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 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 in every form factor they may need — from bare-metal servers to fully-managed PaaS. As a Software 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 customer platform.

Reporting line: VP, Mistral Compute

What you will do

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

Key Responsibilities:

• Design, build, and operate a scalable Kubernetes-based platform to host large-scale AI and HPC workloads, ensuring high performance, reliability, and security.
• Own the full lifecycle of cluster management, from bootstrapping and provisioning to global operations, by integrating and developing the necessary software components—including automation, monitoring, and orchestration tools.
• Drive infrastructure innovation by designing workflows, tooling (scripts, APIs, dashboards), and CI/CD pipelines to optimize system reliability, availability, and observability.
• Champion a zero-trust security model, strengthening IAM, networking (VPC), and access controls to safeguard the platform.
• Develop user-centric features that simplify operations for both sysadmins and end customers, reducing friction in daily workflows.
• Lead incident resolution with rigorous root-cause analysis to prevent recurrence and improve system resilience.

About you

• Strong proficiency in software development (preferably Golang) and knowledge of software development best practices
• Successful experience in an Infrastructure Engineering role (SWE, DevOps, SRE, Platform...)
• Deep understanding of Kubernetes internals and hands-on experience with containerization and orchestration tools (Docker, Kubernetes, Openstack...)
• Familiarity with infrastructure-as-code tools like Terraform or CloudFormation
• Knowledge of monitoring, logging, alerting and observability tools (Prometheus, Grafana, ELK, Datadog...)
• Exposure to highly available distributed systems and site reliability issues in critical environments (issue root cause analysis, in-production troubleshooting, on-call rotations...)
• Experience working against reliability KPIs (observability, alerting, SLAs)
• Excellent problem-solving and communication skills
• Self-motivation and ability to thrive in a fast-paced startup environment
• Now, it would be ideal if you also had:
• Experience with HPC workload managers (Slurm) and distributed storage systems (Lustre, Ceph)
• Demonstrated history of contributing to open-source projects (e.g., code, documentation, bug fixes, feature development, or community support).

Location & Remote

This role is primarily based in one of our European offices — Paris, France and London, UK. We will prioritize candidates who either reside there or are open to relocating. We strongly believe in the value of in-person collaboration to foster strong relationships and seamless communication within our team. Our remote work policy is designed to offer flexibility, enhance work-life balance, and boost productivity. The number of remote workdays is determined by each manager, taking into account individual autonomy and specific circumstances—such as increased flexibility during the summer months. Regardless of the arrangement, we expect all employees to maintain open lines of communication with their teams and be available during core working hours.

We will also consider remote candidates based in one of the countries listed in this job posting (currently France, UK, Germany, Netherlands, Spain and Italy) in certain specific situations. In that case, we ask all new hires to visit our Paris HQ office:

• for the first two weeks of their onboarding (accommodation and travelling covered)
• then at least 3 days per month

What we offer

• 💰 Competitive salary and equity
• 🧑⚕️ Health insurance
• 🚴 Transportation allowance
• 🥎 Sport allowance
• 🥕 Meal vouchers
• 💰 Private pension plan
• 🍼 Parental : Generous parental leave policy
• 🌎 Visa sponsorship