Forward Software Engineer (AI)

Location: Paris, France

Company

Mistral AI provides full-stack AI solutions, including frontier models, developer tools, applications, and compute, for enterprise customers in high-stakes industries.

What you will do

• Build AI systems end to end, from prototypes through production.
• Design agent architectures covering orchestration, tool use, memory, retrieval, and system interfaces.
• Develop backend services, APIs, and user interfaces for working with agents.
• Turn customer solutions into reusable patterns and platforms.
• Design for throughput, latency, cost, failure recovery, security, permissions, sandboxing, prompt-injection defenses, and audit trails.
• Build evaluation and tracing loops, and collaborate with researchers, engineers, and customer-facing teams.

Requirements

• 5+ years of production software experience, including at least one agentic or GenAI system shipped to production and operated after launch.
• Ability to ship across the stack with NodeJS frameworks such as NextJS, Express, or Fastify, or Python frameworks such as FastAPI.
• Confidence with TypeScript and React/NextJS or similar technologies.
• Hands-on experience with agent design, including orchestration, tool use, retrieval, evaluation, and real-world failure modes.
• Autonomous ownership of problem definition, technical approach, and outcomes.
• Fluent English and clear communication with technical and non-technical audiences.
• Ability to ship incrementally, prioritize time to value, and apply product judgment based on user needs.

Nice to have

• Open-source contributions, particularly involving agents or LLMs.
• Experience deploying and operating systems with Docker, Kubernetes, Terraform, AWS, GCP, or Azure.
• Security experience in application, cloud, or AI security, including prompt injection, agent security, SBOM, or SLSA.
• Experience with security workflows such as alert triage, threat hunting, investigation agents, SIEM, XDR, or SOAR tooling.

Culture & Benefits

• Applied AI work emphasizes shipped outcomes, autonomy, direct feedback, low ego, and high standards.
• Benefits vary by country and may include healthcare, parental leave, retirement plans, relocation support, wellness programs, and meal and transportation allowances.
• Benefits are location-specific and depend on the candidate's country.