On-Site Administrative Assistant

Are you organized, people-focused, and energized by a fast-paced, hands-on environment? This is an entry-level position-no prior experience required. We are willing to train anyone who brings the right attitude, strong work ethic, and the ability to thrive in a high-volume setting.


Join our team as an Onsite Staffing Assistant in Brookville, PA, where you’ll serve as a key support partner to our Onsite Account Manager and a direct connection to our client’s daily operations. In this role, you’ll help with administrative tasks, employee engagement, and overall operational efficiency-all while working directly at the client site.


Why You’ll Love This Role
•Be at the heart of day-to-day workforce operations
•Collaborate closely with clients and internal teams
•Help onboard new hires and support employee success
•Make an immediate impact on attendance, communication, and compliance


What You’ll Do
•Greet and check in temporary staff daily
•Support onboarding: distribute badges, collect paperwork, and facilitate orientations
•Monitor and track employee attendance and timekeeping
•Act as the first point of contact for employee questions and workplace issues
•Escalate more complex matters to the Onsite Manager
•Maintain accurate employee records and rosters
•Communicate shift updates, changes, and announcements clearly to employees and clients
•Assist with interview coordination, hiring, and compliance tasks
•Provide general administrative support (filing, data entry, reporting, travel coordination including booking and maintaining travel records)
•Uphold safety standards and ensure policy compliance


This is full-time work. Schedule is Monday-Friday from 8am-5pm. The pay rate is $18/hour.


Apply now!


• High school education or GED is desirable for this position. Some college courses in business-related field helpful.
• Proficient with basic computer systems, including timekeeping and reporting platforms and Microsoft Suites.
• Experience with CRM tools preferred.


Trillium has been recruiting and placing professionals for over 30 years. From Fortune 100 companies to small businesses, our philosophy remains the same: to achieve excellence by providing quality employees and an uncompromising level of service. We believe in honesty, integrity, and a simple philosophy of providing value to our customers and our employees. We strive to be unsurpassed in the recruitment and placement of quality and skilled professionals. Trillium is an Equal Opportunity Employer.