Administrative Assistant

Administrative Assistant Opportunity

IDR is seeking a talented and experienced Administrative Assistant to join one of our top clients in Boulder and Denver, CO. This role is ideal for a detail-oriented professional with a passion for organization, communication, and supporting a fast-paced operational environment. If you thrive in a collaborative setting and enjoy ensuring the smooth day-to-day functioning of a division, apply today! Contract role through end of October 2025. Position begins onsite in Boulder for first half of contract and then ends in Denver for second half of contract.

Position Overview / Responsibilities for the Administrative Assistant :

Provide daily office support to the General Superintendent and team

Greet visitors, answer and screen phone calls, respond to inquiries, and take detailed messages

Develop and compose routine correspondence, reports, charts, graphs, training materials, spreadsheets, and other documentation

Manage calendars, schedule meetings, coordinate travel arrangements, and prepare agendas and minutes

Receive and distribute incoming mail and requests to appropriate personnel

Arrange courier and delivery services; occasionally deliver documents as needed

Create and maintain project files and records, ensuring proper document control

Order office supplies, manage inventory, and coordinate maintenance of office equipment

Review and process travel requests, expense reports, and check requests in compliance with policies

Approve vendor invoices and maintain strong customer service relationships

Maintain grievance tracking and ensure correspondence aligns with collective bargaining agreement (CBA) deadlines

Required Skills for the Administrative Assistant :

Excellent organizational and time management skills

Proficiency with Microsoft Office Suite (Word, Excel, PowerPoint, Outlook)

Strong written and verbal communication abilities

High attention to detail and commitment to accuracy

Experience creating and managing documents, reports, and spreadsheets

Ability to handle sensitive information with discretion

Customer service mindset and ability to build rapport with internal and external stakeholders

Familiarity with administrative procedures and office logistics

Preferred Qualifications :

Prior administrative or office coordination experience in a transportation or government setting

Experience supporting unionized environments or familiarity with CBA processes

Knowledge of data entry and tracking systems

Interest in operational logistics or public service

What's in it for you?

Competitive compensation package

Full benefits : Medical, Vision, Dental, and more!

Opportunity to support a high-impact, mission-driven initiative

Collaborative and professional team culture

Why IDR?

25+ Years of Proven Industry Experience in 4 major markets

Employee Stock Ownership Program

Medical, Dental, Vision, and Life Insurance

ClearlyRated's Best of Staffing Client and Talent Award winner 11 years in a row

Pay transparency : 23-25 / hr. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. IDR is subject to certain governmental recordkeeping and reporting requirements for the administration of civil rights laws and regulations. In order to comply with these laws, we invite employees to voluntarily self-identify their race or ethnicity, gender, and veteran status (if applicable). Submission of this information is voluntary and refusal to provide it will not subject you to any adverse treatment. The information obtained will be kept confidential and may only be used in accordance with the provisions of applicable laws, executive orders, and regulations, including those that require the information to be summarized and reported to the federal government for civil rights enforcement.