Software Engineer, QA

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About Mistral

At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high‑performance, optimized, open‑source, and cutting‑edge models, products and solutions to meet enterprise needs in on‑premises or cloud environments. Our offerings include the AI assistant for life and work. Join us to be part of a pioneering company shaping the future of AI.

Role Summary

We are seeking a skilled and proactive QA Engineer to ensure the reliability, accuracy, and robustness of our AI‑powered products. You will design and execute test strategies for applications, APIs, and machine learning models, working closely with cross‑functional teams to deliver seamless, high‑quality user experiences.

What you will do

• Develop automated test suites to validate app features, APIs, and model integrations, ensuring end‑to‑end reliability.
• Collaborate with PMs and stakeholders to identify and rigorously test edge cases, improving robustness of platform features and models.
• Contribute to building tools and frameworks that enable more efficient and scalable quality testing processes across the organization.
• Implement pre‑release quality gates to validate models, APIs, and platform updates, providing a green light for production releases.
• Design and lead comprehensive QA campaigns, including functional, stress, and performance testing to proactively identify potential issues.

About You

• You have proven ability to create and execute comprehensive test strategies covering functional, regression, and exploratory testing for AI products.
• You are proficient in QA tools like Playwright, Postman, or similar platforms for API and functional testing.
• You’re skilled in identifying, documenting, and collaborating with developers to resolve issues efficiently.
• You are autonomous, a self‑starter, and a proactive problem‑solver with a continuous improvement mindset.
• You are proficient in Python or Typescript.

Preferred Experience

• Experience testing Machine Learning models.
• Understanding of the Machine Learning lifecycle.
• Experience in performance, load, accessibility, or other testing types.
• Strong debugging skills.

Hiring Process

• Recruiter Screening (45 min)
• Hiring Manager Interview (30 min)
• Take‑home test
• Live‑Coding (Scripting) (60 min)
• Culture‑fit discussion (30 min)

Location & Remote

The position is based in our Paris HQ offices with a flexible remote policy. Employees are expected to maintain regular communication with their teams and be available during core working hours.

What we offer

• Competitive salary and equity package
• Health insurance
• Transportation allowance
• Sport allowance
• Meal vouchers
• Private pension plan
• Generous parental leave policy

Seniority level

Not Applicable

Employment type

Full‑time

Job function

Engineering and Information Technology

Industries

Technology, Information and Internet