We are looking for an Administrative Assistant to support a busy nonprofit team in Greenwood Village, Colorado. This part-time, on-site opportunity offers 20 hours per week with flexible scheduling and is a contract position with the potential to become permanent for someone who thrives in a collaborative, service-focused environment. The role centers on membership support, office coordination, data accuracy, and event preparation, making it ideal for a dependable individual who can work independently while staying highly organized. Responsibilities: • Provide day-to-day administrative support for office operations, including general clerical tasks and responsive assistance with incoming questions. • Manage membership-related activities such as responding to inquiries, processing payments, updating records, distributing dues notices, and supporting event registrations. • Maintain and improve the accuracy of membership and contact information across a large database, including data cleanup for thousands of individual records. • Prepare correspondence, mailings, and electronic communications using Microsoft Office tools, including document formatting and mail merge activities. • Assist with planning and coordination for conferences and events by organizing materials, gathering member-contributed items, and helping with logistics as needed. • Support a major event that may require travel in October, including on-site coordination and preparation before and after the program. • Handle data entry and office documentation with a high level of accuracy while helping reduce workload across the team. • Provide administrative support for periodic financial or operational tasks, including assisting with annual check distribution for an affiliated nonprofit organization.

• At least 1 year of experience in an administrative, office support, receptionist, or customer service role. • Proficiency with Microsoft Word, Excel, and PowerPoint, with the ability to create documents, manage spreadsheets, and support presentations. • Experience with data entry and database maintenance; familiarity with membership databases is preferred. • Strong written and verbal communication skills with a detail-oriented, member-focused approach to service. • Ability to work independently, stay organized, and make sound decisions without frequent oversight. • Dependable and trustworthy work style with the ability to manage responsibilities consistently in an on-site office setting. • Comfortable supporting event-related activities and occasional travel when needed.

<h3 class="rh-display-3--rich-text">TalentMatch®</h3> Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. <a href="https://www.roberthalf.com/us/en/mobile-app" target="_blank">Download the Robert Half app</a> and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit <a href="https://roberthalf.gobenefits.net/" target="_blank">roberthalf.gobenefits.net</a> for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s <a href="https://www.roberthalf.com/us/en/terms">Terms of Use</a> and <a href="https://www.roberthalf.com/us/en/privacy">Privacy Notice</a>.

Centennial, CO
onsite
Temporary to Hire
22 - 25 USD / Hourly
We are looking for an Administrative Assistant to support a busy nonprofit team in Greenwood Village, Colorado. This part-time, on-site opportunity offers 20 hours per week with flexible scheduling and is a contract position with the potential to become permanent for someone who thrives in a collaborative, service-focused environment. The role centers on membership support, office coordination, data accuracy, and event preparation, making it ideal for a dependable individual who can work independently while staying highly organized. Responsibilities: • Provide day-to-day administrative support for office operations, including general clerical tasks and responsive assistance with incoming questions. • Manage membership-related activities such as responding to inquiries, processing payments, updating records, distributing dues notices, and supporting event registrations. • Maintain and improve the accuracy of membership and contact information across a large database, including data cleanup for thousands of individual records. • Prepare correspondence, mailings, and electronic communications using Microsoft Office tools, including document formatting and mail merge activities. • Assist with planning and coordination for conferences and events by organizing materials, gathering member-contributed items, and helping with logistics as needed. • Support a major event that may require travel in October, including on-site coordination and preparation before and after the program. • Handle data entry and office documentation with a high level of accuracy while helping reduce workload across the team. • Provide administrative support for periodic financial or operational tasks, including assisting with annual check distribution for an affiliated nonprofit organization.
2026-08-10T00:00:00Z