Software Engineer, Backend

Mistral AI

Backend Engineer contributing to core systems for Mistral's AI platform. Building reliable APIs to enhance user and developer experience across multiple products.

Posted 4/20/2026full-timeNew York City • New York • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

CloudDistributed SystemsDockerGoGrafanaKotlinKubernetesPrometheusPythonTerraform

About the role

Key responsibilities & impact

Design, develop and maintain scalable, robust backend features and APIs using modern frameworks.
Ensure high performance and reliability across our distributed systems.
Contribute to systems powering inference, billing, AI tooling, observability, and developer experience.
Design and implement efficient, secure and scalable architectures that support our fast-growing products.
Collaborate with infrastructure teams on deployment, monitoring, and performance optimization.
Write clean, maintainable and well-documented code.
Participate in code reviews and contribute to technical standards and best practices.
Collaborate with product managers, platform engineers, and AI/ML teams to design, build, and deliver scalable model-as-a-service solutions for developers and enterprise users.
Partner with teams across AI Studio, Le Chat & Mistral Code to ensure consistent platform-wide experience.
Tackle complex engineering challenges, from distributed systems to AI product integration.
Stay up-to-date with new technologies (e.g., AI/LLM integration, observability, or backend frameworks) and bring them into production when relevant.

Requirements

What you’ll need

Degree in Computer Science, Software Engineering, or equivalent practical experience.
Proficiency in Python or another backend language (Golang, Kotlin, C#). Engineers are assessed in their preferred language during a live coding session.
Strong understanding of backend fundamentals: APIs, databases, caching, messaging systems and distributed architectures.
Strong problem-solving abilities and attention to detail.
Ownership mindset capable of shipping end-to-end features with minimal oversight.
Excellent communication skills and collaborative attitude.
Team-oriented, low-ego mindset and curiosity for learning.
Now, it would be ideal if you had experience with:
Full-stack exposure
Working closely with an API & developer ecosystem
Deploying software to a diverse set of environments (cloud, on-premises, etc.)
Infrastructure management (Docker, CI/CD, Kubernetes, Helm, Terraform...)
AI/ML engineering
Observability and monitoring tools (Prometheus, Grafana, Datadog…).
UX and product-centric mindset.

Benefits

Comp & perks

💰 Competitive salary and equity
🚑 Healthcare: Medical/Dental/Vision covered for you and your family
👴🏻 401K : 6% matching
🏝️ PTO : 18 days
🚗 Transportation: Reimburse office parking charges, or $120/month for public transport
🏀 Sport: $120/month reimbursement for gym membership
🥕 Meal stipend: $400 monthly allowance for meals
🌎 Visa sponsorship
🤝 Coaching: we offer BetterUp coaching on a voluntary basis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonGolangKotlinC#APIsdatabasescachingmessaging systemsdistributed architecturesAI/ML engineering

Soft Skills

problem-solvingattention to detailownership mindsetexcellent communicationcollaborative attitudeteam-orientedlow-ego mindsetcuriosity for learning

Certifications

Degree in Computer ScienceDegree in Software Engineering