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Network Engineer - TS/SCI w/ Poly

Usa Va Mcleanmid

Network EngineerInfrastructure & Cloud

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Quick Summary

Key Responsibilities

The position requires an ACTIVE TS/SCI with Polygraph clearance Bachelor’s or Technology degree in Engineering or a related specialized area/field,

Requirements Summary

Skills:Cisco ASA Firewall, Local Area Network (LAN), Networks,

Technical Tools

Network EngineerInfrastructure & Cloud

Regular

Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

None

Job Family:

IT Infrastructure and Operations

Requirements

~1 min read

Cisco ASA Firewall, Local Area Network (LAN), Networks, Technical Support

None

10 + years of related experience

Yes

Job Description:

The Network Engineer 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.

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)

Bachelor’s or Technology degree in Engineering or a related specialized area/field, OR equivalent 14 years job-related experience

10+ years of related Network Engineering experience

8+ years of experience configuring/maintaining Cisco ASA/Next Generation Firewall

7 + years of experience configuring, designing, maintaining, and troubleshooting LAN/WAN devices. Thorough understanding of network routing concepts (EIGRP, OSPF, BGP, IP MPLS)

Experience design, engineering, and deploying controlled interfaces (10 + years)

Expertise/experience (more than 10) deploying Cisco, Palo Alto, or Juniper firewall Manager servers

Experience allowing voice, video traffic across port-based firewall and NGFW

Experience in engineering and deploying multi firewall solutions

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

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

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

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

#GDITPolyEvent

#VA_2026Alumni

#GDITEnhanced2026

#MissionPoly2026

#CJPost

#Jet

The likely salary range for this position is $153,000 - $207,000. 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:

None

Onsite

Work Location:

USA VA McLean

Additional Work Locations:

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.

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.

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 capabilities in AI, cloud, cyber and software development.

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Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans