Accounts Payable Specialist

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 Accounts Payable Specialist, you own the supplier-to-payment cycle for Harmattan AI's entities.

Responsibilities

• Own the full supplier-to-payment cycle, from invoice receipt and coding to approval and payment.
• Perform three-way matching and resolve mismatches with Procurement and Operations.
• Prepare and validate payment runs (SEPA and international) in line with due dates and cash planning.
• Reconcile supplier accounts and investigate discrepancies or unallocated payments.
• Answer supplier queries on payment status and disputes, verifying bank detail changes before any update.
• Improve invoice capture, approval workflows and reporting, and drive AP automation.
• Strengthen internal controls and fraud prevention across the AP process.
• Keep AP records and procedures documented to support audits and French accounting compliance.

Candidate Requirements

• 2 to 4 years of experience in accounts payable, ideally in an industrial or high-growth environment.
• Solid command of the full AP cycle, including invoice processing, matching, payment runs and supplier reconciliations.
• Good knowledge of French accounting rules and VAT, including intra-EU and import transactions.
• Proficiency with an ERP or accounting system; advanced Excel and familiarity with AP automation tools are a plus.
• Experience with multi-entity and multi-currency accounting is a plus.
• Rigor and accuracy, with a strong sense of internal control and organization under tight deadlines.
• Autonomy and a process mindset: you spot inefficiencies, document procedures and propose improvements.
• Collaborative, service-oriented approach with buyers, cost center managers and suppliers.
• Fluent French and professional English.

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