Accounts Payable Specialist: Optimize Payments & Controls

Harmattan AI; Paris; On-site; EUR 38,000 - 54,000; Full time

Job summary

Harmattan AI, a fast-growing defense technology company in Paris, seeks an Accounts Payable Specialist to own and optimize the supplier-to-payment cycle across multiple entities and currencies. You will collaborate with Finance, Procurement and cost center managers to ensure timely payments, strong controls, and scalable AP processes.

You will drive process improvements, automate invoice capture and approvals, and support audits with well-documented procedures in a high-growth, high-velocity

Qualifications

• 2 to 4 years of experience in accounts payable.
• 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.

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.

Skills

Accounts Payable

Invoice Processing

Vendor Reconciliation

Tools

ERP software

Excel

Job description

Harmattan AI, a fast-growing defense technology company in Paris, seeks an Accounts Payable Specialist to own and optimize the supplier-to-payment cycle across multiple entities and currencies. You will collaborate with Finance, Procurement and cost center managers to ensure timely payments, strong controls, and scalable AP processes.

You will drive process improvements, automate invoice capture and approvals, and support audits with well-documented procedures in a high-growth, high-velocity