Network Engineer - TS/SCI w/ Poly

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret

SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI +

Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and

Operations Job

Qualifications

• Skills: Cisco ASA Firewall, Local Area Network
• (LAN), Networks, Technical Support Certifications: None Experience: 15 + years
• of related experience US Citizenship Required: Yes

Job Description

The Network

Engineer (SME) is responsible for designing technical solutions for complex

problems. The candidate will provide technical oversight of a project solution,

including requirement interpretation and allocation of requirements to technical

components. The candidate will define processes to support the implementation of

requirements. The candidate will be responsible for ensuring that the technical

solutions leverage industry best practices, designing security and excellence

while minimizing the total cost of ownership. Candidate should be able to define

internal and external customer IT infrastructure architecture needs and then

design solutions to meet those needs to include: capacity planning, systems

configuration and tuning, monitoring backups, and installations of hardware and

software. Candidates will be required to work independently with little

supervision and should be flexible to work and support IT Operations needs as

requested. HOW A NETWORK ENGINEER WILL MAKE AN IMPACT Define, maintain, and

upgrade the overall security posture of the networks Will perform security

audits of events, overall health and implement changes to improve the overall

programs security posture. Manage and allocate network installation and

engineering tasks, configure and maintain communications systems, familiarity

with implementation of LAN and WAN equipment including firewalls, servers,

workstations, routers, switches, hubs, storage devices, A/V equipment and

equipment racks Ability to write and edit “build-to” and “as-built”

documentation, as well as implementation and test plans for physical and logical

installs of IT equipment Able to engage in technical system planning beyond the

network, to include applications and systems that utilize the network being

delivered Provides expert level analysis of voice, video, and/or data

communications networks, including planning, designing, evaluating, selecting,

and upgrading operating systems and protocol suites Able to plan network layouts

and configures systems to user environments May provide technical support and

troubleshooting to users. (Tier I, II, and III) May serve as a technical team

and/or task leader, must be independent and self-motivated WHAT YOU’LL NEED TO

SUCCEED: Required

Qualifications

• Experience allowing voice, video traffic
• across port-based firewall and NGFW Expertise/experience (more than 10)
• deploying Cisco, Palo Alto, or Juniper firewall Manager servers Experience in
• engineering and deploying multi firewall solutions Experience design,
• engineering, and deploying controlled interfaces (10 + years) Experience design,
• engineering, and deploying firewall vendor transitioning plans Experience
• design, engineering, and deploying firewall in a multicast network environment
• Experience IPSec site-to-site VPN utilizing PKI (CA) Experiences Remote access
• VPN 12 +years of experience configuring/maintaining Cisco ASA/Next Generation
• Firewall 10 + years of experience configuring, designing, maintaining, and
• troubleshooting LAN/WAN devices. Thorough understanding of network routing
• concepts (EIGRP, OSPF, BGP, IP MPLS) Basic understanding of QoS concepts
• Experience with network monitoring technologies Ability to take ambiguous
• requirements or problems and convert them into technical solutions Ability to
• partner with systems administrators, storage administrators, and application
• developers to solve complex problems Complex problem management research and
• issue resolution Ability to mentor junior network engineers 15+ years of related
• Network Engineering experience Bachelor’s or Technology degree in Engineering or
• a related specialized area/field, OR equivalent 19 years job-related experience
• TS/SCI with Poly clearance Excellent organizational, coordination, interpersonal
• and team building skills Proven problem-solving skills in complex environments
• Location: At Customer Site – near Tyson Corner Desired

Qualifications

• Experience configuring, designing, and troubleshooting QoS in LAN or WAN devices
• Juniper, Palo Alto, or Cisco Next Generation Firewalls Certifications and hands
• on experience Experience design, engineering, and deploying Muli-Factor
• Authentication solution Experience design, engineering, and deploying Zero-Trust
• solutions GDIT IS YOUR PLACE: 401K with company match Comprehensive health and
• wellness packages Internal mobility team dedicated to helping you own your
• career Professional growth opportunities including paid education and
• certifications Cutting-edge technology you can learn from Rest and recharge with
• paid vacation and holidays #GDITCareers #cjpost #GDITPolyEvent #JET
• #VA_2026Alumni #GDITEnhanced2026 The likely salary range for this position is
• $182,750 - $247,250. This is not, however, a guarantee of compensation or
• salary. Rather, salary will be set based on experience, geographic location and
• possibly contractual requirements and could fall outside of this range.
• Scheduled Weekly Hours: 40 Travel Required: None Telecommuting Options: Onsite
• Work Location: USA VA McLean Additional Work Locations: Total Rewards at GDIT:
• Our benefits package for all US-based employees includes a variety of medical
• plan options, some with Health Savings Accounts, dental plan options, a vision
• plan, and a 401(k) plan offering the ability to contribute both pre and post-tax
• dollars up to the IRS annual limits and receive a company match. To encourage
• work/life balance, GDIT offers employees full flex work weeks where possible and
• a variety of paid time off plans, including vacation, sick and personal time,
• holidays, paid parental, military, bereavement and jury duty leave. To ensure
• our employees are able to protect their income, other offerings such as short
• and long-term disability benefits, life, accidental death and dismemberment,
• personal accident, critical illness and business travel and accident insurance
• are provided or available. We regularly review our Total Rewards package to
• ensure our offerings are competitive and reflect what our employees have told us
• they value most. Our Identity Verification Process: As part of the hiring
• process, we will ask you to complete an identity verification process that
• leverages advanced biometrics and artificial intelligence to ensure authenticity
• and protect against identity fraud. You are expected to be on camera during
• virtual interviews. We reserve the right to take your picture to verify your
• identity and prevent fraud. By proceeding, you authorize the collection,
• processing, and use of your biometric data for identity verification and
• security purposes. About Our Work: We are GDIT. A global technology and
• professional services company that delivers technology solutions and mission
• services to every major agency across the U.S. government, defense and
• intelligence community. Our 26,000 experts extract the power of technology to
• create immediate value and deliver solutions at the edge of innovation. We
• operate across 50+ countries worldwide, offering leading mission-ready
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