Information Security Analyst jobs in United Kingdom

The Defense & Intelligence Group of Leidos has an opening for the Navy’s Service Management, Integration and Transport (SMIT) Outside Continental United States (OCONUS) IT Specialist in Diego Garcia. The SMIT contract will provide secure end-to-end Information Technology (IT) services to more than 400,000 hardware devices and 600,000+ users at over 1,600 Continental United States (CONUS) sites and over 82 OCONUS site across Asia, Europe, and the Middle East; constituting one of the largest combined networks in the world.

Under the OCONUS Piers portion of the contract, the Leidos team will provide pier side connect/disconnect service, network administration, and fiber optic cable repair supporting U.S. Navy vessels arriving and departing from piers in Europe, the Middle East and Asia. This position will be responsible for monitoring and maintaining the network infrastructure providing connectivity services to vessels in port. This will require the completion of daily checks, performing vulnerability scans, monitoring network connections, resolving, and reporting outages, and maintaining the lifecycle replacement of network equipment. The NetOps specialist may also assist in the connect/disconnect process for vessels arriving or departing from piers at their location. The ideal candidate will have prior experience in network administration and ideally experience operating and maintaining Navy networks.

• Responsible for day-to-day activities of Network Operations.
• Advise on distributed network computing issues.
• Ensures effective and efficient operation of network systems, architecture, and topology.
• Assist the Cyber Team employ approved defense-in-depth principles and practices (e.g., defense-in-multiple places, layered defenses, and security robustness). Assist with the collection of intrusion artifacts (e.g., source code, malware, and trojans) and use discovered data to enable mitigation of potential computer network defense (CND) incidents within the enterprise.
• Assist in the Development and Update of standard operating procedures (SOPs) for connect/disconnect services, fiber optic cable testing, and fiber optic cable repair for the assigned region.
• Operate tools and equipment (including necessary protective equipment) that are required to repair and maintain UCA fiber optic cables.
• Conduct testing of UCA cables at required intervals to ensure the necessary supply of available fully operational UCAs is maintained.
• Update UCA status in the UCA tracker for the assigned region.
• Track planned arrival and departure of vessels at assigned piers and respond within the required service target to provide connect/disconnect service.
• Track daily activities in the approved ticketing system.
• Conduct inventory, maintenance and repair of UCA cables.
• Perform other related duties as assigned.

• Requires a Bachelors’ Degree in a relevant field and 2-4 years of prior relevant experience (in the Network and Infrastructure field), or a Masters’ Degree with less than 2 years of relevant experience.
• Must be a US Citizen and have an active Secret Clearance.
• Must possess an IAT II level certification (CompTIA Security+, etc.).
• Must possess a Network Certification (CompTIA Network+, CCNA, etc.).
• Willing to provide On-Site/ On-call support. 24/7 365 days a year.

• Possess a Microsoft Systems Certification (MCSA, MAAA, MDAA, etc.).
• Demonstrated hands‑on expertise in networking technologies and data centers.
• Previous experience either in the military or as a contractor supporting pier side connect/disconnect service using either UCA or WPCS solutions.
• Hands‑on Experience in working with DoD networks, including NIPR and SIPR.
• ACAS experience.
• Experience with ISP/OSP Fiber Cabling.
• Experience with Computer Hardware and Troubleshooting.
• Possess knowledge of troubleshooting point to point connections.

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.

September 18, 2025

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.

$55,250.00-$85,000.00

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.

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 reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment‑related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment‑related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.