Job Description

Administrative Assistant

100% Onsite | United States | Full-Time

Position Overview

Crown seeks an Administrative Assistant to become part of a team at our Ontario, California office. The successful candidate will perform a variety of administrative duties including answering phones, arranging travel and processing travel expense vouchers, transmitting and receiving messages via email, maintaining electronic calendars, coordinating meetings, escorting visitors, maintaining supplies, and typing memoranda.

Key Responsibilities

Administrative Assistant

• Processes company travel vouchers
• Ensures all receipts are legible and valid expenses
• Ensures that all charges submitted are in compliance with the contract requirements
• Ensures that the client is billed in a timely manner
• Assists with invoices that are sent to the client monthly
• Acts as the liaison between the travel crews and the complexities of the voucher system
• Enforces policy on travel/per-diem, and provides a constant monitoring/auditing of the process for every submission
• Coordinates with the many various companies for materials/lodging/travel and attains the appropriate receipts/invoices in the proper format
• Compiles numerous ad-hoc projects including various statistical reports such as weekly site reports

Qualifications

• Associate’s Degree or equivalent combination of education and experience
• Minimum of 2+ years of administrative support experience
• Proficiency in Microsoft Office Suite, including advanced Excel skills
• Strong organizational and multitasking abilities
• Excellent written and verbal communication skills
• Ability to work independently and collaboratively in a team environment
• Strong attention to detail and problem-solving skills
• Ability to prioritize tasks and manage competing deadlines

Preferred Qualifications:

• Experience supporting government contracts or federal programs
• Familiarity with travel expense processing and invoice management
• Experience with reporting and data tracking tools
• Knowledge of federal compliance requirements is highly desirable

** Schedule & Travel**

Typical schedule is Monday through Thursday, 6:00 AM to 4:30 PM.
Must be able to work non-standard hours depending on site requirements.
This is a 100% Onsite position.

** Compensation**

Hourly Rate Range: $20.00 to $29.47 per hour (W2)

Compensation is determined based on experience, qualifications, geographic location, and internal equity considerations.

Crown complies with all applicable state and local pay transparency laws. The listed compensation range represents the good faith salary range for this position at the time of posting. Actual compensation will be based on experience, qualifications, geographic considerations, and business needs.

Benefits

• 401K with company match
• Comprehensive medical, dental, and vision plans
• Generous PTO

About Us

Crown Innovations is a recognized leader in research, development, and engineering, with deep expertise in air traffic management, survey administration, lifecycle data management for informed decision-making, infrastructure sustainment and modernization, emerging technologies, and National Airspace System (NAS) integration.

For over 30 years, we have supported a diverse portfolio of clients—including the FAA, NASA, the Energy Information Administration (EIA), state and local governments, and commercial organizations such as the Ohio and North Carolina Departments of Transportation.

As a prime contractor on several high-impact federal programs, Crown offers comprehensive capabilities in engineering, strategic planning, data analytics, software development, modeling and simulation, and regulatory compliance.

We are at the forefront of enabling the safe and efficient integration of uncrewed aircraft systems (UAS) and advanced air mobility (AAM) into the NAS, while also supporting infrastructure modernization efforts through robust lifecycle data management solutions. Whether advancing innovative air traffic concepts, enhancing operational performance, or enabling the future of urban air mobility, Crown is committed to shaping a safer, smarter, and more efficient infrastructure landscape.

Crown has consistently been voted one of the best places to work in the Washington, DC area.

Persons unable to complete an online application should contact Crown HR for assistance at (703) 650-0663 ext. 3068.

As a government contractor, most positions require U.S. citizenship.

Crown is a VEVRAA Federal Contractor.
EOE: Vets/Disability

Qualifications

Qualifications

• High school diploma or equivalent required; associate degree preferred

• Minimum 1-2 years of administrative or office support experience

• Proficient in Microsoft Office Suite (Word, Excel, Outlook)

• Strong organizational and time management skills

• Excellent written and verbal communication abilities

• Ability to handle confidential information with discretion

• Detail-oriented and capable of working independently or as part of a team

Additional Information

All your information will be kept confidential according to EEO guidelines.