Full-Time

Software Engineer, DevEx at Mistral AI

Company Mistral AI
Location Paris
How You'll Work onsite
Level senior
Sector Technology
Posted Posted on March 10, 2026

Job Description

We are seeking an experienced Software Engineer, Developer Experience to own and foster a collaborative, automated, and efficient software development lifecycle. In this role, you will collaborate closely with product engineering teams to ensure consistent code health, accelerate development velocity through well-maintained CI pipelines, faster builds, and secure release processes.

Your mission is to empower our software engineering team with seamless workflows while securing our production environments.

Responsibilities:

  • Build, monitor, and enhance CI/CD pipelines to streamline development workflows and accelerate deployments.
  • Design, operate and maintain scalable, reliable and secure multi-cloud infrastructures
  • Identify areas for improvement and create innovative solutions that enable high developer velocity

Team Collaboration & Advocacy:

  • Standardize DevOps practices to ensure consistency across all engineering teams.
  • Establish measurable KPIs for security performance, reliability, and compliance adherence.
  • Partner with development and operations teams to embed security into daily workflows.
  • Lead training initiatives to upskill teams on secure coding, threat modeling, and incident response.
  • Champion a security-first mindset, driving cultural adoption of DevSecOps principles across the organization.

About you:

  • 5+ years of successful experience in a similar role (DevOps, Developer Experience, Platform Engineer, Internal tooling engineer, SRE…)
  • Strong proficiency in scripting languages (Go, Python…) and software development best practices.
  • Developer experience engineering: developer workflow optimization, tooling and automation for productivity, real-time developer support and escalation paths
  • Site Reliability Engineering: CI/CD, containerization, orchestration, infra-as-code, monitoring, logging, alerting, observability…
  • Exposure to multi-cloud infrastructures (AWS / GCP / Azure or On-Prem)
  • Security Tools & Approaches: OWASP, SAST, DAST, SCA, vulnerability scanners

Proven problem-solving and communication skills — ability to contextualizing, gauging risks and getting buy-in for high stakes and impactful solutions.

Ownership, high agency and desire to improve things for others.

Autonomy, self-drive and ability to work well in a fast-paced startup environment.

Low ego and team spirit mindset.

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