Role Overview
Core One is hiring a entry-level Administrative Assistant. This is a full-time role in Sterling. Part of Core One's Security hiring, posted 2 days ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.
Salary Context
Salary is not disclosed in this posting. Market median for Entry-level Security roles is $70k-$98k (based on 10 comparable listings). Many employers share specifics during the interview process or after an initial screen.
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Job description
Join our team at Core One! Our mission is to be at the forefront of devising analytical, operational and technical solutions to our Nation's most complex national security challenges. In order to achieve our mission, Core One values people first! We are committed to recruiting, nurturing, and retaining top talent! We offer a competitive total compensation package that sets us apart from our competition. Core One is a team-oriented, dynamic, and growing company that values exceptional performance!
Core One seeks a Receptionist/ Administrative Assistant who will work from the front desk and present a professional and friendly demeanor while greeting staff and guests while ensuring overall efficiency of the office.
Salary Range: $20Hr - $25Hr
PRIMARY RESPONSIBILITIES
- Provide a high level of customer service over the phone, in person and online while interacting with staff, visitors and customers
- Pick up, drop off, prepare, sort and disperse mail, which may require travel to local USPS, FedEx or UPS facilities
- Check-in and check-out guests including issuance of visitor badges and maintenance of the parking access logs
- Maintain all conference rooms including tracking of calendars, preparing meeting spaces by ensuring supplies are stocked and the rooms are tidied between meetings
- Maintain the office kitchens including ordering and inventory of all kitchen supplies as well as maintenance of the coffee machines
- Oversee and maintain common areas ensuring a clean and welcoming environment
- Manage office supply inventory, to include company swag and coordinate with vendors as appropriate
- Assist with corporate events, including coordination, setup, execution and breakdown
- Assist with general administrative tasks from other departments as time allows
REQUIRED QUALIFICATIONS
- High school diploma
- Minimum 1 year experience in an administrative position
- Ability to multitask and prioritize items effectively
- Flexibility and willingness to help in other departments as needed
- Capable of working in a team environment
- Interpersonal communication skills and computer skills
- Proficient in Microsoft Office 365
- Able to execute tasks with effective follow up
- Excellent business etiquette, work ethics, appearance, verbal and phone communication manners
- Must have own transportation and ability to run general office errands
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About Core One
Core One
coreone.com
45 other open roles at Core One on TryApplyNow.
Frequently Asked Questions
How do I apply for the Administrative Assistant position at Core One?
Use the Apply button above to submit your application directly to Core One. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Administrative Assistant position at Core One located?
This position is based in Sterling. Core One has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Administrative Assistant at Core One earn?
Core One has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Administrative Assistant role at Core One posted?
This role was posted on July 10, 2026 (2 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
Is the Administrative Assistant role at Core One entry-level?
Yes. This is an entry-level position. Strong candidates typically have 0-2 years of relevant work experience, internships, or significant project work. Read the full description for any specific qualification requirements Core One has listed.
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