Assistant ADV – Billing (M/F)

About the role

We are looking for a Billing Assistant (Assistant ADV – facturation) to support a temporary surge in invoicing activity at our client’s site in Saint‑Étienne‑du‑Rouvray. The role is full‑time and will work closely with the existing ADV team to ensure smooth order processing and invoice management.

Key responsibilities

• Answer first‑level client phone calls, qualify requests and route them appropriately.
• Send reminders to clients for missing documents or information.
• Identify invoice anomalies such as duplicate entries, incorrect allocations or blocked invoices.
• Open and follow up incident tickets.
• Perform corrections and re‑assignments in the ERP system.
• Enter and monitor administrative order data.

Required profile

• Bac+2 qualification in ADV, order management or customer relations.
• At least one relevant professional experience.
• Strong numerical aptitude and ability to work autonomously.
• Organised, rigorous and good interpersonal skills.

Required skills

• Proficiency in Microsoft Excel.
• Experience using an ERP system.

What we offer

• Monthly gross salary between €2 153 and €2 400 (38 h/week).
• End‑of‑mission indemnity and paid‑leave bonus adding up to a total gross of up to €2 904.
• 13th‑month salary, meal vouchers, various bonuses and access to a career‑development app.