F5 Systems Engineer – TS/SCI

Company: GD Information Technology
Location: Sterling
Posted on: April 1, 2026

Job Description:

Type of Requisition: Pipeline 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: Complex Systems, Information Technology (IT), Systems Design Certifications: None Experience: 8 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. 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 and ability to obtain and maintain a CI poly 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 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 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 The likely salary range for this position is $128,039 - $173,229. 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 T elecommuting 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. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 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 capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. 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

Keywords: GD Information Technology, Harrisonburg , F5 Systems Engineer – TS/SCI, IT / Software / Systems , Sterling, Virginia