Six Figure Work

Systems Engineer, Expert

Core One

Company websitecoreone.com (Core One, opens in new tab)

Base salary $110K  to $215K

Employer-published annual base salary, USD. Advertised base range in McLean, VA

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  • LocationMcLean, VA
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (1 h ago) · observed since

About this job

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!

*This position requires TS/SCI w/ Polygraph* 

Responsibilities:

  • Provide systems engineering and technical leadership for complex mission systems and communications capabilities.
  • Integrate, administer, and maintain communications, beaconing, tracking, and ATAK-based solutions.
  • Configure and support mobile devices, cloud infrastructure, networks, VPNs, encryption technologies, and associated systems.
  • Gather, analyze, and validate technical requirements and identify solutions and constraints supporting mission and training needs.
  • Support system Assessment & Authorization (A&A) activities and ensure compliance with applicable security and data-handling requirements.
  • Troubleshoot and maintain integrated systems to maximize availability, reliability, and mission effectiveness.
  • Coordinate with technical teams, end users, and Sponsor stakeholders to implement and sustain technical solutions.
  • Develop technical documentation, procedures, and knowledge-sharing practices to support continuity of operations.

Qualifications:

  • Demonstrated experience configuring, set up, monitoring, maintaining, and troubleshooting LAN equipment such as, but not limited to, firewalls, switches, and routers.
  • Demonstrated experience managing physical and virtual beacon and communications servers, applications, and equipment, ensuring maximum reliability of tracking solutions for training course attendees.
  • Demonstrated experience delivering hands-on and lecture-based training sessions using a variety of teaching methods and techniques.
  • Demonstrated experience creating, changing, adding, removing, and maintaining user accounts, via script and coding, of the beacon and communication servers, applications and equipment.
  • Demonstrated experience maintaining maximum system uptime and stability.

Desired Qualifications:

  • Demonstrated experience with Sponsor’s Assessment and Authorization (A&A) processes.
  • Demonstrated strong interpersonal and communication skills with all levels of Sponsor personnel.
  • Demonstrated experience using communication tools including push-to-talk technology.
  • Demonstrated experience using map imagery applications.
  • Demonstrated experience utilizing Microsoft cloud-based tools including Office 365, Azure, Entra, and Teams.

Security Clearance:

  • TS/SCI w/ Polygraph

Levels:

  • Developmental: <3 YOE
  • Full Performance: 3 YOE
  • Senior: 6 YOE
  • Expert: 11 YOE
  • Manager: 16 YOE
  • SME: 16 YOE

Salary Range: $110,000 - $215,000; dependent on level

The pay range reflected above is a general guideline for this position and labor category and is not a guarantee of a specific salary or offer. Final compensation is determined based on factors including, but not limited to, relevant experience, education, certifications, security clearance level, contract requirements, geographic location, and internal pay equity, and may reflect market data specific to the awarded contract. 

Core One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

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Source: Core One on Greenhouse · View original posting (opens in new tab)

Pay in context

This role's base floor ($110,000) is above 10% of the 522 Software Engineering roles in Virginia listed on this site; 1 other lists the same floor. Their median floor is $159,500; the middle half runs from $131,300 to $179,400.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.

This range next to 6 other live Core One roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Core One roles with the nearest advertised base floor
RolePublished base
Systems Engineer, Expert (this listing)$110K - $215K
IT Program Manager L1-6$110K - $215K
Software Developer L1-6$110K - $215K
Systems Integrator L1-6$110K - $215K
Data Scientist / Technical Targeter$110K - $215K
Systems Engineers L1-6$110K - $215K
Senior Cyber Security Analyst$110K - $215K

Same $100K to $400K scale as every card. All Core One roles · How to read the bar

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-08-19
Where this pay comes from

Location as the employer wrote it: Mclean, Virginia

Salary Range: $110,000 - $215,000; dependent on level

Method
Employer text, read with fixed rules and re-verified
Checked
Rule set
us-base-v2

The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.