Senior Administrative Assistant
Aston Carter
Senior Administrative Assistant
The Senior Administrative Assistant provides high-level administrative and operational support to leadership, with a strong focus on expense management, payroll coordination, and travel logistics. This role requires exceptional organization, attention to detail, and the ability to manage multiple priorities in a fast-paced environment while maintaining confidentiality and professionalism.
Key Responsibilities
Expense Management
- Prepare, review, and reconcile employee expense reports for accuracy and policy compliance
- Track corporate expenses and assist with budgeting and reporting
- Partner with finance to resolve discrepancies and ensure timely processing
Payroll Support
- Assist with payroll preparation, including collecting and verifying timesheets and employee data
- Coordinate with HR and payroll vendors to ensure timely and accurate payroll processing
- Maintain and update employee records related to compensation and deductions
Travel Coordination
- Arrange domestic and international travel, including flights, accommodations, transportation, and itineraries
- Manage calendar scheduling around travel and business priorities
- Handle travel-related changes, cancellations, and expense tracking
Administrative & Operational Support
- Provide day-to-day administrative support to leadership and/or departments
- Manage calendars, meetings, and communications
- Maintain organized filing systems and ensure document accuracy
- Support cross-functional coordination across departments
- Handle confidential information with discretion
Qualifications
- 3+ years of administrative experience, preferably in a Senior or executive support role
- Experience supporting expense reporting, payroll processes, and travel coordination
- Strong proficiency in Microsoft Office (Excel, Outlook, Word) and expense/HRIS systems
- Excellent organizational, multitasking, and time management skills
- Strong attention to detail and problem-solving abilities
- Effective communication and interpersonal skills
- Ability to work independently and handle sensitive information with discretion
Job Type & Location
This is a Contract to Hire position based out of New Berlin, WI.
Pay and Benefits
The pay range for this position is $27.00 - $30.00/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
- Medical, dental & vision
- Critical Illness, Accident, and Hospital
- 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
- Life Insurance (Voluntary Life & AD&D for the employee and dependents)
- Short and long-term disability
- Health Spending Account (HSA)
- Transportation benefits
- Employee Assistance Program
- Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in New Berlin,WI.
Application Deadline
This position is anticipated to close on Jun 16, 2026.
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