Part-Time Office & Admin Assistant — In-Office

Oneatlas; Lakewood (CO); On-site; USD 30,000 - 37,000; Part time

Benefits offered by this job

Health & Wellness

Time Off & Family Support

401(k) with company match

Insurance: Life, Disability

Job summary

Atlas is seeking an organized, dependable Office Assistant at our Denver Tech Center location. This part-time, in-office role supports a 10-12 person in-office team with duties from ordering supplies to coordinating meetings and travel.

You’ll report to the Executive Business Partner and work 15-20 hours weekly, Monday through Thursday. The ideal candidate brings strong organization, customer-service mindset, and discretion to ensure a smooth, professional workplace.

Qualifications

• High school diploma or equivalent required.
• 1–2 years of office/administrative or customer-service experience.
• Strong organizational skills and attention to detail; multi-tasking ability.
• Proficiency with Microsoft 365 (Outlook, Word, Excel, Teams).
• Clear, friendly communication with colleagues and vendors.
• Discretion with confidential information and reliable attendance.

Responsibilities

• Office operations including welcome guests, badge distribution and scheduling.
• Order, receive and stock office, kitchen, and breakroom supplies; track inventory.
• Maintain cleanliness and organization of the office and meeting spaces.
• Coordinate with the building manager and report maintenance issues.
• Manage mail, deliveries, courier shipments and outgoing mail.
• Prepare workspaces for new hires and assist IT with equipment setup.
• Coordinate meetings and events, book rooms and arrange AV needs.
• Assist with travel arrangements and expense reporting.
• Support executive leadership as needed with special projects.

Skills

Organizational skills

Communication

Attention to detail

Discretion

Reliability

Microsoft 365 proficiency

Education

High school diploma or equivalent

1–2 years of office/administrative experience

Tools

Microsoft 365

Office productivity tools

Job description

Atlas is seeking an organized, dependable Office Assistant at our Denver Tech Center location. This part-time, in-office role supports a 10-12 person in-office team with duties from ordering supplies to coordinating meetings and travel.

You’ll report to the Executive Business Partner and work 15-20 hours weekly, Monday through Thursday. The ideal candidate brings strong organization, customer-service mindset, and discretion to ensure a smooth, professional workplace.