Job description

Looking for an opportunity to make an impact? 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 a mission you want to be a part of, keep reading! 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 upgrading 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, 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. Basic 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. Experience 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 ServiceNow. Certifications Candidate must, at a minimum, meet DoDM 8140.03 (previously DoD 8570) – IT System Admin Intermediate certification requirements (Cloud , GICSP, SSCP, Security CE, GSEC, or higher). Candidate must possess an F5 Certified Administrator (201) or higher certification. Education High School Diploma with 8 years of relevant experience, Associate’s with 6 years of experience, Bachelor’s degree with a minimum of 4 years of relevant experience, or Master’s degree with 2 years of experience. Security Clearance Due to the nature of the government contracts we support, US Citizenship is required. TS/SCI with Poly required for Position or TS/SCI and willingness to get a poly. If you re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We re not hiring followers. We re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We re already at step 30 — and moving faster than anyone else dares. Original Posting: October 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $73,450.00 - $132,775.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Requirements

Must-haves

Looking for an opportunity to make an impact?
If this sounds like a mission you want to be a part of, keep reading!
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.
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.
Experience 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 ServiceNow.
Certifications
Candidate must, at a minimum, meet DoDM 8140.03 (previously DoD 8570) – IT System Admin Intermediate certification requirements (Cloud , GICSP, SSCP, Security CE, GSEC, or higher).
Candidate must possess an F5 Certified Administrator (201) or higher certification.
High School Diploma with 8 years of relevant experience, Associate’s with 6 years of experience, Bachelor’s degree with a minimum of 4 years of relevant experience, or Master’s degree with 2 years of experience.
Security Clearance
Due to the nature of the government contracts we support, US Citizenship is required.
TS/SCI with Poly required for Position or TS/SCI and willingness to get a poly.
Original Posting: October 21, 2026

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Platform: workday
Effort: long

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