F5 Systems Engineer – TS/SCI w/Polygraph

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

Benefits offered by this job

401K with company match

Health and wellness packages

Internal mobility team

Professional growth opportunities

Cutting-edge technology

Paid vacation and holidays

Job summary

General Dynamics Information Technology (GDIT) seeks an experienced F5 Systems Engineer to secure and optimize government networks. You’ll manage F5 LTM/ASM/BIG-IQ/APM, implement QoS and load balancing, and document procedures for cross-data-center deployments in Sterling, VA or Annapolis Junction, MD.

The role requires DoD 8570 IAT II credentials, active TS/SCI with polygraph, and 7+ years of F5 expertise. Join a mission-focused team delivering secure infrastructure solutions.

Qualifications

• Active TS/SCI clearance with polygraph.
• DoD 8570 IAT II: Security+ CE, CND, SSCP, GSEC, GICSP, CySA+, or CCNA Security.
• F5 Certified Administrator certification (or within 3 months of hire).
• Targeted F5 module certification (LTM, DNS, ASM, or APM) within an additional 90 days.
• Bachelor of Science Degree or equivalent.
• 7+ years of F5 experience with LTM/ASM/BIG-IQ/APM administration.
• Broad knowledge across storage, virtualization, networking, data center migration and DR.
• Experience with TCP/IP, MPLS, OSPF, BGP, SDN, 802.1x; DNS/DHCP/IPAM/NTP.
• Knowledge of risk and controls landscape.

Responsibilities

• Manages configuration on multiple physical and virtual F5 across data centers.
• Develops and supports customer technical requirements.
• Plans, designs, implements, and operates F5 products (LTM, ASM, BIG-IQ, APM).
• Provides technical documentation and procedures for issues identified and addressed.
• Proposes system enhancements to improve performance and reliability.
• Monitors and troubleshoots platform and OS network security issues.
• Performs launch testing for new software releases and features.
• Collaborates with technology towers to meet common goals.
• Applies capacity planning changes as needed.
• Addresses performance, scalability, and service architecture issues.
• Coordinates equipment orders and upgrades.

Skills

Complex Systems

F5

Technical Troubleshooting

Education

Bachelor of Science Degree or related technical discipline

Tools

F5 LTM

F5 ASM

BIG-IQ

APM

Job description

Req ID: RQ226717

Type of Requisition: Regular

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

Experience:

7 + years of related experience

US Citizenship Required:

Yes

Job Description:

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.

HOW A F5 SYSTEMS ENGINEER WILL MAKE AN IMPACT :

• 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 TO SUCCEED:

• Active TS/SCI clearance with polygraph
• Certifications Needed:
• Must meet DoD 8570 IAT Level II requirements including one of the following: Security+ CE, CND, SSCP, GSEC, GICSP, CySA+, or CCNA Security.
• Must have the F5 Certified Administrator certification or obtain the certification within 3 months of hire date
• Obtain one targeted F5 module certification (LTM, DNS, ASM, or APM) within an additional 90 days
• Education: Bachelor of Science Degree, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
• 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:

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you build your skills and 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 10 company-paid holidays

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.

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 https://gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans