Job Opening: DSN (Nominative Social Declarations) Coordinator (M/F) – Permanent Position

Based at the Onet Group’s headquarters in Marseille (9th arrondissement) and reporting to the Social Security Reporting and Compliance Department, you will work on a complex portfolio (55 entities, 400 locations, 75,000 monthly payrolls, multiple collective bargaining agreements).

In this context, your responsibilities will focus on two main areas:

Payroll Closing and DSN Management:

Analyze issues related to the DSN and make recommendations for correcting the settings
Work with HRIS teams to resolve identified issues
Ensure effective management of data flows with third-party organizations (mutual insurance companies, pension funds, URSSAF, etc.)
Verify the calculation of social security contributions using verification queries and unit-by-unit checks
Participate in the acceptance testing phases and track incidents until they are resolved

Point person for projects related to social security reporting and the DSN:

Oversee the implementation of regulatory changes and new payroll items
Improve the reliability of DSNs, particularly through the use of substitute DSNs, and participate in the project related to the triggering event as well as any other projects related to reporting obligations
Monitor regulatory developments regarding the DSN and related requirements
Ensure the quality and compliance of data integrated into the DSN

Your assets

You hold a college degree and have at least five years of experience in a similar role, gained at a large corporation or a payroll software provider. You have a thorough understanding of payroll regulations, particularly social security contributions and the specifics of the DSN, and are comfortable working in complex environments (involving multiple collective bargaining agreements and multiple companies).

You have participated in large-scale projects related to data reporting, particularly regarding DSN configuration or the development of functional recommendations within structured organizations.

You are comfortable working with numbers and are proficient in office software, particularly Excel (VLOOKUP and pivot tables). Knowledge of HR Access and Business Objects (or another BI tool) would be a plus.

With strong interpersonal skills and excellent communication skills, you know how to interact effectively with the various stakeholders in the organizational chain.

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

Onet, a French family-owned group founded in 1860, is an international player in the engineering and services sectors. Our diversified offering (cleaning, security, reception, logistics, airport services, engineering and nuclear services, technical building maintenance) spans several countries and is based on the expertise of our 80,000 employees, representing €2.4 billion in revenue. Our mission is to deploy our energies and resources to help create ever healthier, safer, and more reliable environments. Our ambition is to strengthen our impact to become a mission-driven company.

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