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Network Services Subject Matter Expert
Company: General Dynamics IT
Location: Falls Church, VA
Employment Type: Full Time
Date Posted: 01/16/2026
Job Categories: Engineering, Information Technology
Job Description
Network Services Subject Matter Expert

We areGDIT. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. At GDIT, we ensure today is safe and tomorrow is smarter. Our work has meaning, making an impact on both the world around us and ourselves.This is your placeto embrace autonomy, seize opportunity, and deliver your best every day.

GDIT has an opening for aNetwork Services Subject Matter Expertin support of theArmy National Guard (ARNG)located inFalls Church, VA. Join us on a pivotalIT Service Management (ITSM)contract that drives the modernization, expansion, and evolution of the ARNGs global IT services. The programs focus includes IT infrastructure, WAN, authentication, directory services, cybersecurity, application hosting, and more, leveraging theITIL frameworkto deliver excellence in IT services to the ARNG.

How a Senior Network Services Subject Matter Expert Will Make an Impact:

As aNetwork Services SME, you will:

  • Strategize and Innovate:Support the network services team in developing complex solutions to meet ARNG strategic projects and initiatives.

  • Implement Advanced Network Solutions:Configure, manage, and maintain physical and virtual infrastructures, including: Cisco routers, Layer 3 switches, Firewalls, Palo Alto IDS/IPS.

  • Ensure Operational Excellence: Perform required maintenance during off-hours. Provide support for 24x7 operations of a large enterprise infrastructure. Adhere to established schedules and best practices.

  • Maintain Compliance: Implement and maintainDISA STIGsbaselines in accordance with quarterly releases. SupportCORA inspectionsrequired to maintainAuthority to Operate (ATO).

  • Develop and Document SOPs:Create and maintain standard operating procedures.

  • Analyze customer requirements and provide technical solutions for complex problems.

  • Conduct maintenance and upgrades for network devices, including servers, routers, switches, firewalls, and remote access systems.

  • Create and defend system change requests.

  • Develop, maintain, and implement a proactive capacity planning model to enhance business decision-making.

  • Maintain network integrity and connectivity by ensuring compliance with organizational policies.

  • Coordinate acquisition of hardware, software, and subcontractor services as needed.

  • Plan and configure systems for data communication networks to meet ARNG needs.

  • Design and build hardware and software components for complex computer or telecommunications networks.

  • Evaluate emerging communications technologies to enhance network capabilities.

  • Maintain current knowledge of relevant and emerging technologies to ensure consistent technical performance.

  • Proactive, solution-oriented mindset, Familiarity with ITIL processes, Proven ability to communicate effectively with cross-functional teams, Strong problem-solving and analytical skills with attention to detail.

WHAT YOULL NEED TO SUCCEED:

Education: Bachelors degree in IT preferred. High School Diploma; AA/AS/BA/BS preferred or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience (10+ years of relevant experience as an Information Technology professional).

Experience: 10+ years of experience with Cisco and Palo Alto Routing, Switching, IDS/IPS, and Firewall technologies.

Required Technical Skills: Strong understanding of: Routing protocols:BGP, OSPF, MPLS(Multiprotocol Label Switching), Multi-VRF appliances, Firewall and IDS/IPSconfigurations and concepts.

Certifications: Must meet DoD IAT Level II IA Computing Environment (CE) certification at state date: (i.e. Cisco, Palo Alto, etc.). Require Cisco Certified Network Associate (CCNA) or higher. Desired Cisco Certified Network Professional (CCNP)

Security Clearance Level: Active SECRET security clearance required and must be maintained.

Location: Falls Church, VA.Three (3) days of onsite with up to two (2) days telework. Onboarding/transition in period requires on-site support up to 60 days. Work schedules are subject to change on direction by mission requirements from GDIT or USG leadership.

GDIT IS YOUR PLACE: At GDIT, the mission is our purpose, and our people are at the center of everything we do.

  • Growth: AI-powered career tool that identifies career steps and learning opportunities

  • Support: An internal mobility team focused on helping you achieve your career goals

  • Rewards: Comprehensive benefits and wellness packages, 401K with company match, competitive pay and paid time off

  • Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY
Explore a career in program management at GDIT and youll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.

#GECOS #GDITPriority

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