Group Financial Controller

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems—across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector—co-creating customized AI systems that they can run on their terms.

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 Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.

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 on .

Role Summary

As Mistral AI’s Group 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.

• Act as a critical partner to the Accounting Ops Lead , ensuring the close process and R2R outputs are robust.

• 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

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What we offer

We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.

For the most up-to-date details on benefits available in your location, please refer to our Benefits page .

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