AP/AR Accountant

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.

• Commitment: 100% dedication to Harmattan AI’s mission, vision, and ambitious growth plans, ready to go the extra mile to ensure operational excellence.

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