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Office Manager

Mathys-Potestio, LLC
United States, Colorado, Longmont
Sep 15, 2025

Job Title: Site Office Manager

Location: Longmont, Colorado

Schedule: Full-time, Standard Hours (8:00-5:00)

About the Role

We're seeking a highly organized and people-focused Office Manager to support day-to-day operations at our Longmont site. This role is a 50/50 blend of event coordination and administrative responsibilities, serving as the go-to resource for employees, leadership, and visitors.

What You'll Do




  • Provide administrative support to site leadership and cross-functional teams.



  • Plan and execute employee events - from weekly activities to annual site-wide gatherings.



  • Oversee budgets, expenses, and vendor management.



  • Manage onboarding, HR coordination, and new-hire support.



  • Serve as the face of the site for executives, partners, and guests.



  • Maintain office communications, digital signage, and newsletters.




What We're Looking For




  • 5+ years of relevant experience in office management, administration, or event planning.



  • Strong communication and interpersonal skills.



  • Ability to manage multiple priorities and adapt to weekly needs.



  • High school diploma required; additional education a plus.



  • Strong organizational skills and attention to detail.



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