Financial Controller

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    As Mistral AI’s Financial Controller, you will ensure the accuracy, completeness, and compliance of all accounting records and financial statements. This role is purely accounting-focused, with a mission to oversee the review of accounting entries, collaborate with auditors, and enforce rigorous financial controls. You will work closely with the Internal Control department to mitigate risks and uphold the highest standards of financial reporting. You’ll report to the Group accounting director. Location: Paris, or London       What you will do   Conduct detailed reviews of accounting entries (journal entries, accruals, provisions, intercompany transactions, etc.) to ensure accuracy, completeness, and compliance with IFRS and French GAAP.  Implement and enforce financial control frameworks, including segregation of duties, approval workflows, and reconciliation processes. Serve as the primary liaison with external auditors (Big 4 firms) during statutory audits, ensuring timely and accurate delivery of audit requests, explanations, and supporting documentation.  Oversee the preparation of audit-ready financial statements for all Group entities, including consolidated and statutory reporting.  Collaborate with our Tax team to ensure compliance with tax and regulatory obligations (VAT, corporate tax, payroll taxes, etc.)  Review and approve balance sheet reconciliations, P&L analyses, and flux analyses to guarantee the integrity of financial data. Support the design and monitoring of key controls to prevent errors, fraud, or misstatements in financial reporting. Review management reporting packages, including variance analyses, flux explanations, and ad-hoc financial analyses for senior leadership.  Ensure financial data is accurate, consistent, and transparent to support decision-making.     Who you are:   12+ years of experience, including Big4 audit experience, with a strong background in statutory audits, financial due diligence, and accounting reviews. Tech start-up/scale-up experience, with hands-on expertise in high-growth environments (preferably in AI, software, or deep tech). Deep expertise in IFRS, with a focus on financial reporting, consolidation, and compliance. And expertise in FR GAAP is a plus. Strong proficiency in SAP S4 and advanced Excel for financial analysis and reporting. Experience in reviewing and approving accounting entries, reconciliations, and financial statements. Rigorous attention to detail, analytical rigor, and a zero-tolerance policy for errors in financial reporting. Strong collaboration skills, with the ability to work effectively with auditors, internal control teams, and senior leadership. Proactive and solution-oriented, with the ability to identify risks and implement corrective actions.  Fluent in English. French is a plus.     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   🇬🇧 💰 Competitive cash salary and equity 🚑 Health Insurance 🚴 Transportation: Reimburse office parking charges, or 90GBP/month for public transport 🥎 Sport: 90GBP/month allowance for gym membership 🥕 Food : £200 monthly allowance (solution might evolve as we grow bigger)  👴🏻 Pension plan: SmartPension (percentages are 5% Employee & 3% Employer) 🍼 Parental : Generous parental leave policy 🌎 Visa sponsorship     By applying, you agree to our Applicant Privacy Policy.