Applied AI, Use-case, Software Engineer (Harness) at Mistral AI
May no longer be active — verify on the employer site
At a glance
- Company
- Mistral AI
- Location
- London, France
- Work arrangement
- On-site
- Employment type
- Full-time
- Experience
- 5–10 years
- Working hours
- 40 hours
- Visa sponsorship
- Offered, according to the listing
- Posted
- Added to The Stack
✨ The Stack take on this Mistral AI job
- 🏢 Mistral AI has 13 jobs here, 7 with visa sponsorship see all
- 🛂 Visa: Talent passport. EU Blue Card salary: €59,373 a year (1.5 times the average salary) guide
- 💡 No salary shown. Ask Mistral AI if it is above the minimum.
Updated 2026-11-05, from our data and official sources.
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About the role
Responsibilities:
- Build and productionize the cyber harness and service prototype, turning research prototypes into scalable, maintainable client-facing services.
- Orchestrate red-team / blue-team agent loops (discover → patch → redeploy → retest) and implement context engineering for autonomous workflows.
- Create connectors, worker-scaling systems, SDKs and packaging to convert demos into deployable services on container platforms.
- Integrate with Mistral's stack (workflow/temporal-style orchestrator, Vibe) and enable Science to train and evaluate against the infrastructure.
- Ensure robustness, observability, operational readiness and collaborate with security, applied and platform teams during deployments.
Requirements:
- Strong software engineering background with experience shipping production-grade, distributed services and scalable architectures.
- Hands-on experience with Kubernetes/containers, orchestration frameworks, SDK development, and operational tooling (Python or similar).
- Familiarity with agentic/LLM orchestration, context engineering and offensive/defensive security tooling and workflows.
- Track record of delivering testable, maintainable code, and ability to collaborate closely with research and security teams to productionize prototypes.
Responsibilities
Build and productionize a cybersecurity harness by turning research prototypes into scalable, robust services. Orchestrate red-team and blue-team agent loops and integrate these capabilities into Mistral's corporate stack.
Requirements
Requires a strong software engineer with hands-on experience in cybersecurity tooling and distributed systems. Proficiency in agentic LLM orchestration and a track record of shipping production-quality code are essential.
Key skills
- Cybersecurity Product Development — in 1 other listing on The Stack
- LLM Orchestration — in 8 other listings on The Stack
- Distributed Systems — in 342 other listings on The Stack
- Service Architecture — in 2 other listings on The Stack
- Context Engineering — in 12 other listings on The Stack
- Kubernetes — in 585 other listings on The Stack
- Containers — in 9 other listings on The Stack
- Red-teaming — in 1 other listing on The Stack
- Offensive Tooling
- SDK Development
- Temporal
- Python
- Software Engineering
- API Design
- Agentic Workflows
- Productionization
On The Stack (as of 2026-11-05)
Frequently asked questions about Mistral AI
Is this Applied AI, Use-case, Software Engineer (Harness) role still open?
It was posted on 2026-05-28. Listings more than 30 days old may no longer be active, so check Mistral AI's site before applying.
Does Mistral AI offer visa sponsorship?
This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Mistral AI's site.
Where is this role located?
The listing gives the location as London, France. It is marked on-site.
What skills does this role ask for?
The listing names: Cybersecurity Product Development, LLM Orchestration, Distributed Systems, Service Architecture, Context Engineering, Kubernetes, Containers, Red-teaming, Offensive Tooling, SDK Development, Temporal, Python, Software Engineering, API Design, Agentic Workflows, Productionization.