Financial Controller

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

• 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.

• 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. Expertise in French 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.

• Competitive cash salary and equity
• Daily lunch vouchers:
  Swile meal vouchers with €10.83 per worked day, including 60% offered by company
• Sport:
  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 Better Up coaching on a voluntary basis
• Health Insurance (UK)
• Transportation:
  Reimburse office parking charges, or £90/month for public transport
• Sport: £90/month allowance for gym membership
• Food: £200 monthly allowance
• Pension plan:
  Smart Pension (5% Employee & 3% Employer)