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920 available offers
  • MANAGEMENT ASSISTANT (M/F)
  • Ref: 2026-16403
  • Maison Alfort
  • CDD
  • Today
City
Maison Alfort
Activity
Human safety
Function
Management/ finance/ audit
Contract type
CDD
Working hours
35h00
Compensation

Offer description

Your mission

Onet Security Accueil is looking for a Management Assistant (M/F) on a fixed-term contract to strengthen the finance team during a temporary increase in activity. 


Reporting to the Management Controller, you play a key role in ensuring the reliability of financial data and monitoring performance.

Your main tasks:

  • Management and control of the entire customer billing process (costing, issuing, and tracking invoices)
  • Entering supplier invoices
  • Analytical monitoring (FAE/FNP provisions)
  • Litigation tracking / collection of outstanding debts with customer reminders
  • Financial KPIs to monitor during different closings
  • Assist the branch manager with profitability analysis

Contribution to the performance of the area:

Your role is crucial in ensuring the reliability of accounts, compliance with the budget, and the quality of economic management.

You are a key link in the functioning of the Area Management.

Your assets

With a degree in management, finance, or management control, you have at least two years of experience in a similar position, ideally in a structured environment.

Recognized for your organizational skills, thoroughness, and independence, you enjoy working in a team and know how to manage your priorities effectively.


You are proficient in IT tools and have already worked with Oracle, which is a real asset for quickly succeeding in this position.

Onet has been committed to diversity and disability for many years. Onet recruits and recognizes all talents

Our business

Onet, a French family-owned group founded in 1860, is an international player in engineering and services. Its more than 70,000 employees work every day to help create ever healthier, safer and more reliable environments.
More about Onet
Our 7,000 employees protect numerous industrial, service, transport and event sites in France. We support our customers in the global management of their risks, and deploy teams of safety and security agents, as well as electronic security systems. Onet Security is part of the Onet Group, an international service and engineering group with 80,000 employees.

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