Ensures the smooth running of administrative processes in the Human Resources field within their area of competence (terminations, contracts, modifications, transfers/company transfers, geographical mobility, illness, maternity, disputes, maintaining confidential files, etc.) Performs non-standardized operations reserved for them or requiring specific knowledge of the file. Ensures that the operations of the various parties involved are carried out on time and with the required quality; performs necessary checks, analyzes discrepancies, and informs partners of any anomalies found. Anticipates employee life events (end of fixed-term contract, return from absence, probation period, retirement, etc.) together with partners. Provides partners with data and/or performs analyses of personal data. Provides technical/administrative operational support for the implementation and application of programs, processes, and tools (e.g., changes in the time management system (GTA), personnel management system (inTouch), etc.).