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F5 Load Balance Network Engineer

Job in Alexandria, Fairfax County, Virginia, 22350, USA
Listing for: Leidos Inc
Full Time position
Listed on 2026-01-27
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity, IT Support
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below

Description

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

If this sounds like the kind of environment where you can thrive, keep reading!

The Digital Modernization Sector brings together our digital transformation and IT programs, allowing us to better serve our customers through scale and repeatability. Your greatest work is ahead!

Leidos is seeking a F5 Load Balance Network Engineer to support a large enterprise IT contract for the DOD. This role is responsible for implementation, operations, and maintenance of load balancer technologies in a global enterprise across multiple networks. Duties include updating to new technologies, tuning performance, and implementation of critical system patches. This infrastructure may include on-premises and cloud resources.

This individual will work in a team environment to ensure mission needs are met for internal and external customers.

This position is now available in multiple locations and offers the opportunity to work from any of our key sites in Alexandria, VA, Reston, VA;
Tampa, FL; MD (undisclosed), Omaha, NE; or Millington, TN.

Primary Tasks
  • Ensure Secure Socket Layer/Transport Layer Security (SSL/TLS) offloading and brokering PKI authentication features provided by the F5 appliance is operational at all times.
  • Ensure load balancing configurations and PKI certificates are backed up in accordance with customer policies.
  • Alert load balancing and reverse proxy customers prior to PKI certificate expiration and assist with certificate renewals as necessary.
  • Create, manage, and troubleshoot load balanced IP address spaces.
  • Develop and implement technical solutions in collaboration with engineers and architects.
  • Provide after-hours support to 24/7/365 IT Operations Center personnel to assist with troubleshooting service outages.
  • Develop and update technical solutions, operating procedures and other documentation for 24/7/365 IT Operations Center personnel to assist with initial troubleshooting and triage efforts.
Qualifications
  • Experienced in administering and managing F5 load balancer appliances in an enterprise environment.
  • Knowledge of standards, concepts, and tools to be able to complete technology monitoring and management of F5 appliances.
  • Technical knowledge backing up PKI certificates and appliance configurations.
  • Expertise creating, managing, and troubleshooting load balanced IP address spaces.
  • Experience working independently in support of customer requirements.
  • Experience interfacing with team members on requirements and solutions.
  • Familiar with IT Service Management products such as Service Now.
Certifications
  • DoD 8140.03 (formerly DoD 8570) IT System Admin Intermediate certification requirements (Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher)
  • F5 Certified Administrator (201) or higher
Education
  • Bachelor's degree; candidates without higher education may be considered with additional relevant F5 experience or an F5 certification.
Security Clearance
  • US Citizenship is required due to government contracts.
  • TS/SCI with Poly required for the position or TS/SCI with willingness to obtain and maintain a polygraph.
To be considered for the following levels
  • T2 Level: Bachelor's degree with 2+ years of relevant experience, Associate's with 4+ years, High School Diploma with 6+ years, or Master's with < 2 years.
  • T3 Level: Bachelor's degree with 4+ years, Associate's with 6+ years, High School Diploma with 8+ years, or Master's with 2 years.
  • T4 Level: Bachelor's degree with 8+ years, Associate's with 10+ years, High School Diploma with 12+ years, or Master's with 6 years.
About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos has a history of strong performance. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. Compensation packages include Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask for payment-related information during the application process. If you suspect a scam, contact  or your local law enforcement.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or…

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