Senior Administrative Assistant

First Onsite - US; Monroe Township (NJ); On-site; USD 50,000 - 70,000; Full time

Job summary

Join a dynamic team as a Senior Administrative Assistant at a leading company in Monroe Township, where you'll play a crucial role in supporting leadership operations. Bring your organizational skills and adaptability to manage a variety of tasks ranging from calendar coordination to project documentation and vendor relations.

Qualifications

• Highly organized and tech-savvy individual.
• Ability to thrive in a fast-paced, team-oriented environment.

Responsibilities

• Manage calendar coordination and meeting prep for senior leaders.
• Handle travel bookings, vendors for equipment maintenance, and onboarding.
• Support job file updates and assist with trade show logistics.

Skills

Organization

Adaptability

Communication

Resourcefulness

Technical Savvy

Job description

As a Senior Administrative Assistant at First Onsite, you're the trusted right hand to our leadership team-keeping operations running smoothly, projects on track, and communication flowing. Every day, you bring organization, resourcefulness, and a service-first mindset to support both day-to-day tasks and big-picture initiatives.

Your day may begin with calendar coordination and meeting prep for senior leaders, followed by managing incoming mail and FedEx deliveries, booking travel, and arranging catering for an internal event. You'll handle contract uploads, assist with project documentation, and help onboard new employees and subcontractors with confidence and professionalism.

Throughout the day, you might jump into a production meeting, support job file updates, send out client correspondence, or coordinate with vendors for equipment maintenance. You stay ahead of the curve-proactively managing priorities, juggling multiple responsibilities, and communicating clearly with internal teams and external partners alike.

Whether it's processing expense reports, assisting with trade show logistics, or supporting licensing and safety certifications, you bring the polish and precision that keeps everything running seamlessly behind the scenes.

If you're a highly organized, adaptable, and tech-savvy administrative professional who thrives in a fast-paced, team-oriented environment-this is your opportunity to make a meaningful impact at First Onsite.

First Onsite provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

First Onsite (and its Companies) participates in E-Verify. We will provide the U.S. Social Security Administration (SSA) and, if necessary, the U.S. Department of Homeland Security (DHS) with information from each new employer's Form I-9 to confirm work authorization.

This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Third party resume submissions are not accepted. Any resume submitted will be considered the property of THE COMPANY, and THE COMPANY will not be held liable to pay a placement fee.

Subject to Federal, State and Local laws, regulations and/or ordinances, applicant must be able to pass Background Check and Pre-employment Drug Screen.