Accounts Payable Specialist

01About 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.

02About the Role

As Accounts Payable Specialist, you own the supplier-to-payment cycle for Harmattan AI's entities. You will build and improve AP processes rather than just run them. Working closely with Finance, Procurement and cost center managers, you keep supplier payments reliable and controls strong as the company's volumes and entities grow.

03Responsibilities

• 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.

04Candidate 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.

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