Freelance - Sales Admin Manager / Gestionnaire ADV - (F/H)

Job Overview

This is a full‑time freelance mission based at our Paris offices (75010), starting in mid‑April and running until the end of July. The role is full‑time on‑site and fully dedicated for the entire duration.

Responsibilities

• Manage the multi‑country client invoicing and factoring process.
• Oversee the full collection process, including legal proceedings when necessary.
• Measure and analyze key financial and operational KPIs.
• Handle and resolve client claims and disputes.
• Contribute to the continuous improvement & automation of financial operations processes.
• Act as the billing referent for other teams and share reliable figures with the finance team.
• Work with the accounting team on monthly and annual closings.

About You

• 2 years of experience as a Sales Admin Manager or in a similar role.
• Highly rigorous, reliable with strong attention to detail and deadlines.
• Proactive, solution‑oriented, automation‑mindset, anticipating issues and driving improvements.
• Curious and business‑mindful, eager to understand the “why” behind the numbers.
• Strong team spirit, collaborative and constructive with Finance and non‑Finance stakeholders.

What We Offer

• Dynamic work environment in a hub of innovation, testing new technologies.
• High impact, with solutions recognized by major market players.
• Cross‑functional collaboration; link between various teams throughout project timelines.