Engineering Manager, Secure Sandbox & Cloud Compute

Mistral; Greater London; On-site; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Healthcare coverage

Parental leave

Relocation support

Retirement plans

Wellness programs

Job summary

Mistral is building a sovereign AI cloud for Europe. We design secure, scalable infrastructure for frontier models, with a focus on isolation, performance, and reliability.

As a team lead, you will hire and mentor engineers, own architecture decisions, and ship primitives that empower AI agents at scale. You’ll work closely with product managers to turn research into deployable systems.

Qualifications

• 3+ years of people leadership, managing engineers, hiring, coaching, and giving honest feedback.
• 8+ years building backend or infrastructure systems.
• Shipped production systems in Go; not just dabbling.
• Deep Linux internals: namespaces, cgroups, seccomp, virtualization.
• Experience with network isolation at the packet level.
• Strong performance profiling and systems optimization skills.
• Partnered with product, design, and business teams to ship software to real users.

Responsibilities

• Build the isolation layer: microVMs or containers, namespaces, cgroups, seccomp, snapshot and restore.
• Own the security boundary to ensure customers run code safely.
• Scale to fleets: manage creation latency, density, and lifecycle for thousands of environments.
• Design and build architecture with your team and guide the hardest implementation decisions.
• Grow engineers and set a standard for ownership and feedback.
• Own people management for the team: hiring, performance, growth paths, and honest feedback.
• Partner with Product Managers to turn frontier research needs into shippable primitives.

Skills

People leadership

Backend architecture

Linux internals

Network isolation

Performance profiling

Go backend

Tools

Go

Firecracker

Kubernetes

Job description

Mistral is building a sovereign AI cloud for Europe. We design secure, scalable infrastructure for frontier models, with a focus on isolation, performance, and reliability.

As a team lead, you will hire and mentor engineers, own architecture decisions, and ship primitives that empower AI agents at scale. You’ll work closely with product managers to turn research into deployable systems.