Software Engineer, New Grad

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, democratizing AI through high‑performance, open‑source models, products, and solutions that meet enterprise needs whether on‑premises or in the cloud. Our offerings include Le Chat, the AI assistant for life and work, and a comprehensive AI platform designed to transform society. We are a dynamic, collaborative team distributed across France, the USA, the UK, Germany, and Singapore.

Role Summary

We are seeking early‑career software engineers (new graduates or up to 1–2 years of experience) to join our software engineering teams. As a Software Engineer, you will help build and improve the core systems powering our products (AI Studio, Applications), our operations (SRE, data, security), and shape how users and developers interact with our AI platform at scale. You will work closely with experienced engineers who support your growth.

What You Will Do

Backend development

• Contribute to the design and implementation of backend features and APIs using modern frameworks
• Help maintain and improve the performance, reliability and scalability of our services
• Support the development of systems powering authentication, billing, AI tooling, observability, connectors, search, and developer experience

Frontend development

• Design, develop, and maintain scalable and robust user‑facing features (using TypeScript, React, Next.js) ensuring seamless integration between front‑end and back‑end systems
• Prioritize user experience and ensure that our products meet the needs and expectations of our user base

System architecture & infrastructure

• Learn how to design efficient, secure and scalable architectures under senior guidance
• Collaborate with infrastructure teams on deployment, monitoring and performance optimization
• Gain exposure to distributed systems and cloud‑native concepts in a production environment

Code quality & best practices

• Write clean, readable and well‑tested code
• Participate in code reviews, learning from feedback and contributing to team standards over time
• Help improve internal tools, documentation and developer workflows

Cross‑functional collaboration

• Work with product managers, front‑end engineers, designers and data/AI engineers to deliver end‑to‑end features
• Partner with teams across AI Studio, Le Chat and Mistral Code to ensure a consistent platform‑wide experience
• Communicate clearly about progress, trade‑offs and technical constraints

Problem‑solving & learning

• Tackle real‑world engineering problems, from performance bottlenecks to integrating new AI capabilities
• Stay curious about new technologies (AI/LLM integration, observability, backend frameworks) and experiment with them when relevant
• Take ownership of your learning path with support from mentors and peers

About You

• You are about to graduate or recently graduated with a degree in Computer Science, Software Engineering or a related field, or you have equivalent hands‑on experience
• You are proficient with at least one programming language such as Python, JavaScript/TypeScript, C++, Golang, etc.
• You have a solid understanding of core computer science and system architecture fundamentals
• You have built software projects through internships, personal projects, open‑source contributions or university work, and can discuss the design choices you made
• You enjoy solving problems, pay attention to detail and care about building reliable systems
• You are proactive, curious and willing to take ownership of small features end‑to‑end with guidance
• You communicate clearly, ask good questions and enjoy working in a collaborative, low‑ego environment

Preferred & Nice‑to‑Have Interests

• Infrastructure topics (Docker, CI/CD, Kubernetes, Helm, Terraform)
• AI/ML engineering or working with LLMs and related tooling
• Observability and monitoring tools (Prometheus, Grafana, Datadog)
• UX and product‑centric thinking: you care about how your work impacts users and developers

Hiring Process

• Online coding assessment – 60 minutes
• Introduction call – 30 minutes
• Live Coding Interview – 30 minutes
• Hiring Manager Interview – 30 minutes
• Technical Deep Dive – 30 minutes
• Culture‑fit discussion – 30 minutes

Location & Remote

The position is based in our Paris HQ offices, and we encourage going to the office at least three days per week to create bonds and smooth communication. Our remote policy provides flexibility to improve work‑life balance and productivity. Each manager can decide the amount of remote days based on autonomy and specific context. 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

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