Senior Associate, Administrative Assistant – GMSA Oncology TA

MSD

Senior Associate Administrative Assistant providing support within GMSA Oncology at Merck. Managing calendars, coordinating travel and liaising with senior leadership.

Posted 7/10/2026full-timeRahway • New Jersey, Pennsylvania • 🇺🇸 United StatesSenior💰 $82,700 - $130,200 per yearWebsite

Tech Stack

Tools & technologies

ERP

About the role

Key responsibilities & impact

Manages complex calendars, prepares correspondence and reports, and reliably handles confidential and politically sensitive issues.
Often serves as an initial point of contact for and liaison to outside visitors, clients and vendors.
Coordinates and performs multiple tasks while understanding the project principles and technical skills related to own work assignments.
Prioritizes work activities with little supervision.
Supports the use of Team Sites.
Schedules interviews.
Coordinates hiring and on-boarding of new hires.
Also handle resignations/off-boarding.
Systems, Applications and Products in Data Processing (SAP) experience processing purchase orders, payment requests, and vendor add forms, as well as ability to run reports within SAP.
Concur experience for processing expense reports.
Communicates and interacts effectively with our company executives and internal/external clients both onsite and remotely to maintain workflow.
Coordinates special projects within the division or area.
Consistently demonstrates company leadership behaviors; able to deal with difficult situations and people diplomatically and effectively.
Schedules complex travel arrangements, including multi-leg domestic and international travel.
Handles visa and passport processing.
Handles and prioritizes many simultaneous assignments.
Performs some event planning and coordination.
Exhibits extraordinary attention to detail.
Demonstrates outstanding communication and people skills.
Manages financial and budget tasks.
Proactively takes initiative.

Requirements

What you’ll need

At least 8 years of administrative experience.
At least 3 years supporting senior leadership roles.
Advanced analytical ability, independent judgment, creativity, and problem-solving capabilities.
Advanced proficiency in MS Office Suite (Outlook, Word, Excel, PowerPoint) and collaboration tools; ability to create executive-ready materials.
Experience scheduling complex, multi-leg domestic and international travel.
Experience working across international time zones and across cultures.
Demonstrated experience processing visa and passport applications.
SAP or equivalent ERP experience processing expense reports and basic financial tasks.
Exceptional communication skills to interact effectively with executives and internal/external stakeholders, both onsite and remotely.
Extraordinary attention to detail.
Proactive, self-directed, comfortable making decisions with incomplete information, and a well-developed sense of when to seek executive alignment.
Strong organizational skills and ability to handle and prioritize simultaneous assignments.

Benefits

Comp & perks

medical, dental, vision healthcare and other insurance benefits (for employee and family)
retirement benefits, including 401(k)
paid holidays
vacation
compassionate and sick days

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Calendar ManagementExpense Report ProcessingVisa And Passport ProcessingEvent PlanningAnalytical AbilityProblem-Solving CapabilitiesFinancial ManagementProject CoordinationMulti-TaskingExecutive Material Preparation

Soft Skills

Attention To DetailProactive InitiativeDiplomatic CommunicationSelf-DirectionInterpersonal Skills