About Us Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces.

Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected.

About The Role As AP/AR Accountant , you will take full ownership of day-to-day supplier and customer accounting operations for our French entities, with exposure to US entities as volumes grow. You will work closely with the Accounting & Reporting Manager and partner with Procurement, FP&A, and operational teams to ensure accurate, timely, and scalable financial data.

This is a hands-on role with real ownership, ideal for someone who enjoys rigor, volume, and continuous process improvement in a fast-growing, industrial environment.

Responsibilities Accounts Payable (Primary focus)

• Process supplier invoices on a daily basis, ensuring accurate booking in compliance with French GAAP
• Allocate invoices correctly across general ledger accounts, subledgers, cost centers, and CAPEX/OPEX
• Manage the accounting inbox and act as the main point of contact for vendor queries and reconciliations
• Prepare and initiate payment batches several times per week via Odoo, with proper controls and documentation
• Perform supplier reconciliations, aging analyses, and resolve discrepancies proactively

Month-End & Controls

• Record and justify AP-related accruals (Invoices Not Received, prepaid expenses, cut-offs)
• Own AP/AR reconciliations and contribute to balance sheet accuracy
• Ensure data quality, completeness, and robustness of accounting records

Accounts Receivable

• Oversee customer invoice recording and AR entries
• Support the automation and scalability of AR processes as volumes increase

Process Improvement

• Actively contribute to the automation of invoice booking, filing, and payment processes in Odoo
• Participate in preparing the company for the French electronic invoicing reform

Candidate Requirements

• Educational Background: Degree in accounting or equivalent (Bac +2 or higher)
• Experience: 3–5 years of experience in Accounts Payable / Accounting. Background in a startup/scale-up or a large industrial company with high invoice volumes. Experience with cost center allocation is a strong plus.
• Technical Knowledge: Strong command of French GAAP. Comfortable with accruals, reconciliations, and balance analyses. ERP experience required (Odoo is a plus). US GAAP exposure is a plus.
• Adaptability & Mobility: Thrives under pressure in a fast-paced, dynamic environment; embraces a “no-task-is-too-small” mentality. Willingness to travel and work flexible schedules (evenings/weekends as needed).
• Communication & Influence: Excellent written and verbal communication, capable of leading diverse principals – from junior members to senior executives.

We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.