Mistral AI

Software Engineer, DevEx

Mistral AI
onsite senior full-time Paris
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First indexed 17 Apr 2026

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 contextualize, gauge risks, and get 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.
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.lever.co/mistral/c9e16eb0-0cb9-423d-8495-a96d10782622