Finance Operations & Systems (Internship)

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. Our comprehensive AI platform is designed to meet enterprise as well as personal needs. Our offerings include Le Chat, AI Studio, Mistral Code and Mistral Compute — a suite that brings frontier intelligence to end-users.

We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between France, USA, UK, Germany and Singapore. We are creative, low-ego and team-spirited. Join us to be part of a pioneering company shaping the future of AI.

Together, we can make a meaningful impact. See more about our culture onhttps://mistral.ai/careers.

Role Summary

Join Mistral as a Finance Tech Intern and play a key role in shaping our state-of-the-art Finance Tech stack alongside our Revenue Stack Expert. You’ll stabilize ongoing projects and streamline day-to-day operations, enabling our team to focus on long-term innovation.

This is a unique opportunity to contribute to Mistral’s financial transformation from the ground up, experimenting with cutting-edge AI and data tools in a fast-paced, high-impact environment.

Your work will include standardizing invoice-to-payment processes, creating onboarding resources for new joiners, and designing monitoring tools for billing and ERP integrations.

Enjoy high autonomy and ownership as you collaborate directly with the Finance team to build and deploy new processes.

What you will do

• Help scale the Procure‑to‑Pay operating model post go‑live (hypercare support, issue triage, documentation, and adoption).
• Map and improve Finance workflows across tools such as Payflows (AP), SAP (ERP), Lago (billing), Kyriba (treasury), Anrok (tax), Navan (expenses), and Lucca (HRIS).
• Build clear documentation and runbooks for Finance users (how‑tos, decision trees, “common issues” playbooks).
• Maintain a structured backlog of improvements, bugs, and requests, with crisp problem statements, impact, and next steps.
• Support governance topics such as cost center and approver matrices (alignment, validation checks, rollouts).
• Contribute to monitoring and controls: data reconciliation checks, dashboards, and lightweight
• KPIs to spot issues early.
• Help organize stakeholder routines: meeting preparation, follow‑ups, and action tracking"

Who you are

• We are looking for a candidate from a Tier 1 Engineering School (or dual degree/Business School with technical skills like coding or Python) who thrives in dynamic and cross-functional environments.
• You should be analytical, structured, and comfortable navigating ambiguity, with a knack for identifying root causes and proposing pragmatic solutions.
• Experience in scale-ups or operational roles is essential, along with a strong curiosity for how systems (AP, ERP, billing, treasury) interconnect and drive operational impact.
• Familiarity with ERP/finance tools (SAP, NetSuite), data manipulation (spreadsheets, SQL, BI tools), or process mapping (BPMN, flowcharts) is a plus.
• Above all, we value proactive problem-solvers who are eager to collaborate across teams and stakeholders to build efficient, scalable processes.

What we offer

💰 Competitive cash salary and equity
🥕 Daily lunch vouchers : Swile meal vouchers with 10,83€ per worked day, incl 60% offered by company
🥎 Sport : Enjoy discounted access to gyms and fitness studios through our Wellpass partnership
🚴 Transportation : Monthly contribution to a mobility pass via Betterway
🧑‍⚕️ Health : Full health insurance for you and your family🍼 Parental : Generous parental leave policy
🌎 Visa sponsorship
🤝 Coaching: we offer BetterUp coaching on a voluntary basis