Network Engineer Senior (Security) – TS/SCI required

Posted Yesterday
Be an Early Applicant
Fort Belvoir, VA, USA
In-Office
140K-190K Annually
Senior level
Aerospace • Information Technology • Professional Services • Security • Software
The Role
Provide Tier 3 network security engineering for INSCOM: install, configure, and harden network and security infrastructure; troubleshoot switching, routing, VPNs, and Next-Gen firewalls; manage ACLs and firewall policies; configure F5 BIG-IP (LTM/ASM); perform packet analysis; apply STIGs/NIST hardening; collaborate across teams and support enterprise SDLC.
Summary Generated by Built In

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret/SCI

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:

Network Engineering, Network Infrastructures, Networking Hardware

Certifications:

None

Experience:

10 + years of related experience

US Citizenship Required:

Yes

Job Description:

Network Engineer Senior (Security) – TS/SCI required
Transform technology into opportunity as a Network Engineer Senior (Security) at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your career.

MEANINGFUL WORK AND PERSONAL IMPACT

As a Network Engineer Senior (Security), the work you’ll do at GDIT will be impactful to the mission of US Army Intelligence and Security Command (INSCOM ). You will play a crucial role in supporting the INSCOM mission.

  • Install, configure, and maintain customer network infrastructure and security stack as part of a global enterprise.
  • Troubleshoot networking and security protocols/technologies, including switching, routing, and security (e.g., Layer 4-7, firewall, Site-to-Site VPN, DMVPN, etc) to resolve problems on the customer information system.
  • Analyze, plan, and implement access control lists (ACL), firewall policies, and other logical security controls in a multi-vendor security stack.
  • Provide expert-level (Tier 3) network security engineering support for INSCOM activities in the National Capital Area. 
  • Collaborate with teams of various technical discipline to solve enterprise IT problems from a holistic perspective.
  • Configure load balancing and authentication policies on F5 BIG-IP to support web application hosting.

WHAT YOU’LL NEED TO SUCCEED:

  • Education: Bachelor's Degree with 12 years of experience or Master's Degree with 10 years of experience
  • Required Skillset:
    • Excellent attention to detail
    • Excellent communications skills and ability to interact with both clients and teammates
    • Experience with configuring, integrating, and troubleshooting security appliances in a multi-vendor federal enterprise environment
    • Experience with the behavior of routing protocols in Next Generation Firewalls
    • Experience with Network Automation tools, scripting languages, or Infrastructure as Code tools (e.g. NetBrain, Python, PowerShell, APIs, Terraform, Ansible)
    • Intermediate knowledge of F5 BIG-IP deployment and configuration with Local Traffic Manager and Application Security Manager
    • Hardening network devices in accordance with STIGS/NIST and industry best practices
    • Experience with packet analysis tools such as TCPDump and Wireshark
    • Experience working in a large SDLC environment
  • Security Clearance Level: TS/SCI
  • Required Certification(s):
    • DoD 8570/8140 Computing Environment (CE) Certification as determined by the Program Manager is required prior to support on contract
    • Required Security Environment Certification:
      • Cisco Certified Network Professional – Security
      • Cisco Certified Network Professional – Enterprise
      • Palo Alto Networks Certified Network Security Engineer
  • Location: On Customer Site
  • Additional:
    • Candidates must be willing and able to attain a CI Polygraph for certain positions as determined by the contract
    • Position may require lifting of objects (i.e. IT Hardware), reaching/bending/kneeling (i.e. plug in cables) and other moderately strenuous activity
    • Travel may be required to support the mission

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, and 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 you’ll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.

#GDITarmy

#GDITrecruiting

#GDITPriority

#GDITINSCOM

#I2TS4

The likely salary range for this position is $140,250 - $189,750. 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:

10-25%

Telecommuting Options:

Onsite

Work Location:

USA VA Fort Belvoir

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 capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Skills Required

  • Bachelor's Degree with 12 years of experience or Master's Degree with 10 years of experience
  • 10+ years of related network engineering experience
  • US Citizenship
  • Current Top Secret/SCI clearance
  • Ability to obtain Top Secret SCI + Polygraph
  • DoD 8570/8140 Computing Environment (CE) Certification as determined by Program Manager (required prior to support)
  • Cisco Certified Network Professional - Security (CCNP Security)
  • Cisco Certified Network Professional - Enterprise (CCNP Enterprise)
  • Palo Alto Networks Certified Network Security Engineer
  • Experience configuring, integrating, and troubleshooting security appliances in a multi-vendor federal enterprise environment
  • Experience with routing protocol behavior in Next-Generation Firewalls
  • Experience with Network Automation tools or scripting: NetBrain, Python, PowerShell, APIs, Terraform, Ansible
  • Intermediate knowledge of F5 BIG-IP deployment and configuration (LTM and ASM)
  • Hardening network devices in accordance with STIGs/NIST and industry best practices
  • Experience with packet analysis tools such as TCPDump and Wireshark
  • Ability to provide Tier 3 network security engineering support onsite at customer site (Fort Belvoir)
  • Willingness/ability to attain CI Polygraph when required by contract
  • Ability to perform moderate physical tasks (lifting IT hardware, cable work) and travel as required (10-25%)

General Dynamics Information Technology Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about General Dynamics Information Technology and has not been reviewed or approved by General Dynamics Information Technology.

  • Affordable Benefits Pay and benefits are described as good or okay in multiple places, and the overall package is often portrayed as acceptable even when base pay is not viewed as top-tier.
  • Healthcare Strength Medical, dental, and vision plan options are presented as comprehensive, with additional protections like disability and life insurance contributing to a well-rounded health and protection offering.
  • Retirement Support A 401(k) plan with company match is consistently highlighted as part of the total rewards package, supporting longer-term financial planning.

General Dynamics Information Technology Insights

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The Company
HQ: Falls Church, VA
21,625 Employees

What We Do

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

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