Core One
Government & Public SectorDirect Greenhouse career site

Field Engineer

Location
Sterling, VA · On-site
Job type
Full-time
Level
Mid-level
Experience
3+ years
Education
Associate degree
Listed
30 days ago

Skills & highlights for this role

  • Top Secret clearance
  • US citizenship
  • router and switch configuration
  • Windows and Linux administration
  • virtualization
  • firewall troubleshooting

Also useful

  • CCNA
  • Security+
  • Network+

About the role

Sterling, VA (Washington, DC Metro Area) - Frequent travel required, up to 75% during active deployments

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 is a hands-on field role for someone comfortable being the only technical presence on site and diagnosing issues independently. The Field Engineer deploys, configures, and sustains network and systems infrastructure at customer and program sites across the United States, pairing systems-engineer-level technical depth with the customer-facing judgment and adaptability needed to work in unfamiliar environments under schedule pressure. The role sits within the Strategic Services Division's Engineering Capabilities Group, reporting to the Deputy Program Manager - Technical.

*This position requires an active Top Secret (TS) clearance*

*This position may require extended on-site assignments of up to 4-6 weeks*

Roles & Responsibilities

  • Travel to customer and program sites nationwide to perform installations, deployments, and infrastructure build-outs, including site surveys, rack-and-cable work, and customer handoff and acceptance testing
  • Configure and troubleshoot routers, switches, firewalls, and wireless infrastructure to established program baselines, including VPN tunnels, circuit turn-up, and remote access
  • Install, configure, and maintain Windows and Linux servers, workstations, and virtualization hosts, including account provisioning, patching, and backup verification
  • Support end users on site and remotely, resolving hardware, software, mobile device, and peripheral issues, and deploy imaging and endpoint management tooling
  • Apply security baselines and hardening standards to deployed systems, maintain accountability for equipment and sensitive material in transit, and follow established change control procedures
  • Produce as-built documentation, site records, network diagrams, and trip reports, and coordinate with Systems Engineers, Network Engineers, and program management to align field execution with technical design

Required Qualifications

  • Associate's degree in Information Technology, Computer Science, or a related field, or 4+ additional years of relevant experience in lieu of education
  • 3+ years of relevant experience in field operations, IT infrastructure, or systems and network administration
  • Hands-on experience configuring and troubleshooting network hardware, including routers, switches, and firewalls
  • Working knowledge of Windows and Linux administration and virtualization platforms
  • Demonstrated ability to work independently at remote sites with limited supervision or on-site support
  • Willingness and ability to travel frequently to field locations throughout the United States, including extended on-site assignments; valid driver's license and ability to obtain and maintain a passport
  • Must be a U.S. Citizen and hold an active Top Secret (TS) clearance

Desired Qualifications

  • Bachelor's degree in Information Technology, Computer Science, or a related field
  • Certifications such as CCNA, Security+, or Network+
  • Experience with multi-site deployments or distributed infrastructure programs
  • Experience with air-gapped, isolated, or closed network environments in secure settings
  • Experience supporting secure communications and VTC infrastructure
  • Familiarity with structured cabling, power distribution, and rack layout practices

Physical Requirements

Ability to lift and move equipment weighing up to 50 pounds, work in equipment rooms and confined spaces, use ladders and hand tools, and remain on foot for extended periods during installation activity.

Salary Range: $95,000 - $125,000

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.

Security Clearance

Active Top Secret (TS) clearance required.

Read the original posting

From Core One's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the Field Engineer job at Core One located?

This Field Engineer position at Core One is located in Sterling, VA (On-site). Always check Core One's application page for specific state eligibility or relocation policies.

What qualifications are required for Field Engineer at Core One?

For the Field Engineer role, Core One highlights 3+ years of relevant experience; a associate degree; experience with router and switch configuration, Windows and Linux administration, virtualization, firewall troubleshooting. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Field Engineer position at Core One?

This listing links directly to Core One's Greenhouse application page. You can apply directly on Core One's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Greenhouse application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.