Onsite Office Manager: Operations & Exec Support Centennial

Addison Group; Centennial (CO); On-site; USD 52,000 - 70,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k)

Job summary

Addison Group is seeking an experienced Office Manager to support day-to-day business operations in a fast-paced corporate environment. This onsite role in Centennial, CO emphasizes calendar management, meeting coordination, and preparing business documents to keep teams running efficiently.

The ideal candidate is proactive, highly organized, and excited to leverage modern workplace tools—including AI-powered technology—to improve productivity and support executive operations.

Qualifications

• 5+ years of administrative, office coordination, or executive support experience.
• Strong office management and organizational skills.
• Excellent written and verbal communication skills.
• 100% onsite in Centennial, CO.
• Monday-Friday, 8:00 AM-4:30 PM.

Responsibilities

• Provide administrative support to multiple departments and business leaders.
• Coordinate calendars, meetings, appointments, and scheduling priorities.
• Prepare presentations, reports, spreadsheets, correspondence, and other business documents.
• Organize meeting logistics, prepare materials, document meeting notes, and track follow-up items.
• Coordinate business travel, accommodations, and expense reporting.
• Plan and support office meetings, team events, and onsite activities.
• Maintain organized electronic and physical filing systems.
• Track project timelines, action items, and deliverables to keep work moving forward.
• Develop and improve administrative processes, tracking tools, and documentation.
• Support office operations, including conference room setup, office supply management, and general office organization.
• Partner with employees across multiple departments to support daily business operations.
• Provide backup support to the Executive Assistant and assist senior leadership when needed.
• Complete special projects and additional administrative duties as assigned.

Skills

Administrative experience

Organizational skills

Communication skills

On-site coordination

Job description

Addison Group is seeking an experienced Office Manager to support day-to-day business operations in a fast-paced corporate environment. This onsite role in Centennial, CO emphasizes calendar management, meeting coordination, and preparing business documents to keep teams running efficiently.

The ideal candidate is proactive, highly organized, and excited to leverage modern workplace tools—including AI-powered technology—to improve productivity and support executive operations.