F5 Systems Engineer – TS/SCI w/Polygraph

General Dynamics Information Technology; Sterling (VA); On-site; USD 149,000 - 201,000; Full time

Benefits offered by this job

401K with company match

Paid time off

Competitive benefits

Job summary

General Dynamics Information Technology is seeking an experienced F5 Engineer to support Government activities in Sterling, VA or Annapolis Junction, MD. The role focuses on traffic management, Local/GlobalTraffic, and TcL scripting across data centers.

You will manage F5 LTM/ASM/BIG-IQ/APM, contribute to secure network infrastructure, and work within a TS/SCI clearance with polygraph. This position requires DoD 8570 IAT Level II compliant certification and 7+ years of F5 experience.

Qualifications

• Bachelor of Science Degree or equivalent combination of education and training.
• F5 201 certification required or within 3 months of hire.
• DoD 8570 IAT Level II requirements (Security+ CE, CND, SSCP, GSEC, GICSP, CySA+, CCNA Security).
• 7+ years of relevant F5 experience with LTM/ASM/BIG-IQ/APM.
• Knowledge across Storage, Virtualization, Networking, Data Center Migration, and Disaster Recovery.
• Experience with TCP/IP, MPLS, OSPF, BGP, SDN, 802.1x; DNS/DHCP/IPAM/NTP in large multi-site env.

Responsibilities

• Manage configuration on multiple physical and virtual F5 devices across data centers.
• Develop and support customer technical requirements.
• Plan, design, implement, and operate F5 products (LTM, ASM, BIG-IQ, APM).
• Provide clear technical documentation and procedures.
• Propose system enhancements to improve performance and reliability.
• Monitor and troubleshoot network security infrastructure and connectivity issues.
• Perform launch testing for new software releases and features.
• Collaborate with technology towers to achieve goals.
• Apply capacity planning configuration changes as needed.
• Address performance, scalability, and service-architecture issues.
• Coordinate equipment orders and upgrades for appliances and virtualization.

Skills

Complex Systems

F5

Technical Troubleshooting

Education

Bachelor of Science Degree

Tools

F5 LTM

F5 ASM

F5 BIG-IQ

F5 APM

Job description

Job Qualifications:

Complex Systems, F5, Technical Troubleshooting

Job Description:

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

Skills:

Complex Systems, F5, Technical Troubleshooting

Certifications:

None

Experience:

7+ years of related experience

US Citizenship Required:

Yes

GDIT is your place. Make it your own by discovering new ways to apply the latest technologies securely and expertly. By owning your opportunity at GDIT, you’ll become a critical part in how we successfully solve our clients’ biggest challenges, deliver on promise, and innovate the client’s physical/virtual infrastructure for the future. Our work depends on an F5 Engineer joining our team to support Government activities in Sterling, VA or Annapolis Junction, MD.

At GDIT, we foster a people-focused and customer-centric environment in delivering Network Engineering Services.

As an F5 Engineer supporting the Government, you will be responsible for traffic management, F5 Local Traffic Manager, F5 Global Traffic, Tool Command Language (TcL), and more.

In This Role, a Typical Day Will Include:

• Manages the configuration on multiple physical and virtual F5 across multiple data centers
• Participates in the development and support of customer technical requirements
• Plans, designs, develops, implements, and operates F5 products such as LTM, ASM, BIG-IQ, and APM
• Provides clear technical documentation and written procedures for issues identified and addressed
• Proposes and implements system enhancements that improves the performance and reliability of the network security infrastructure
• Monitors and troubleshoots platform and OS based problems: network security infrastructure, and connectivity issues
• Performs launch testing for new software releases and the introduction of new features
• Collaborates with different technology towers to achieve common goals
• Applies capacity planning configuration changes as needed
• Addresses performance, scalability, and service architecture administration issues
• Coordinates equipment orders including physical or virtual appliances, as well as upgrading, monitoring, testing, and servicing the systems as needed

What You’ll Need:

• Active TS/SCI clearance with polygraph
• Education: Bachelor of Science Degree, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
• Must have the F5 201 certification or obtain the certification within 3 months of hire date
• Must meet DoD 8570 IAT Level II requirements including one of the following: Security+ CE, CND, SSCP, GSEC, GICSP, CySA+, or CCNA Security.
• 7+ years of relevant F5 experience with F5 LTM, ASM, BIG-IQ, and/or APM administration and life cycle management including experience with advanced iRule creation and troubleshooting
• Demonstrates knowledge of a broad range of technology towers i.e.: Storage, Virtualization, Intel, Networking, Data Center Migration and Disaster Recovery
• Experience deploying, managing, and troubleshooting network systems, switching, and routing protocol standards such as: TCP/IP, MPLS, OSPF, BGP, SDN, and 802.1x.
• Experience managing and troubleshooting DNS, DHCP, IPAM, and NTP in a large multi-site environment
• Knowledge of risk and controls landscape, ensuring company-wide standards are met

GDIT IS YOUR PLACE

• 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 an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

#VA_2026Alumni

#MD_2026Alumni

#GDITCareers

#WeAreGDIT

#JET

The likely salary range for this position is $148,750 - $201,250. 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 Sterling

Additional Work Locations:

USA MD Annapolis Junction

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