Assistant ADV - Apprenticeship

Our growth is driving us to strengthen our Sales Administration (ADV) team to support an increasing volume of client operations and free up time to work on structuring and automation projects. Your mission will be to ensure the smooth and accurate processing of administrative, billing, and financial requests in order to secure revenue flows, support key accounts, and maintain a high level of service for internal teams and clients.

Responsibilities

Process bank transfers, payment allocations, and accounting reconciliations; Manage invoicing, credit notes, commercial gestures, and contract administration; Handle incoming requests via emails, Jira tickets, and internal tools from Sales and Support teams; Upload invoices on customer payment platforms (e.g. Chorus and other client portals); Update client data, orders, and Purchase Orders (PO) in internal systems; Ensure accurate follow-up for B2B, B2C, and key accounts; Contribute to documentation and process updates to improve efficiency and reliability

Requirements

First experience (1–2 years) in Sales Administration, Billing, or similar administrative role; Good knowledge of Purchase Orders (PO) and order management; Familiarity with customer invoicing or payment platforms (e.g. Chorus); Basic accounting knowledge (reconciliation / balance follow-up); Comfortable using Office tools and internal client consoles; Strong communication skills, both written and verbal; Team spirit and ability to collaborate with multiple stakeholders; Excellent organization and attention to detail; Ability to manage stress in a fast-paced, multi-channel environment; High-quality written communication, especially for client-facing exchanges

Benefits

Spacious dynamic offices near public transport with outdoor spaces and bike parking; Meal service at headquarters and breakfast available across all sites; Swile card for lunches for regional sites; Access to gym, daycare places, and discounted caring services; International environment with dozens of nationalities; Internal mobility and opportunities to transition to other Iliad Group entities