A Systems Engineer creates computer and data communication networks for companies and organizations. Plans and designs layout for a network, determines the hardware needed and placement of computers, servers, cables and routers; determines data storage, system capacity, and speed.
Azure XDR and Sentinel Infrastructure Engineer Location:
Suitland, MD Clearance Required:
Active TS/SCI Leidos is seeking an experienced Azure XDR and Sentinel Infrastructure Engineer to support security operations across the
NAVINTEL
enterprise in Suitland, MD . This role engineers, administers, monitors, and sustains Microsoft Defender (XDR) and Microsoft Sentinel
SIEM/SOAR
environments at enterprise scale.
Primary:
Responsibilities Engineer and maintain Defender and Sentinel integrations, analytics, data connectors, RBAC models, and platform health. Support lifecycle operations including upgrades, troubleshooting, detections, automation, and Tier III incident response. Design Azure cloud architecture supporting Zero Trust tools and secure monitoring pipelines. Develop and maintain diagrams, SOPs, configuration baselines, automation, and operational reports.
Required Qualifications:
BA/BS in CS, IT, IA or related area with 8+ years of experience or a Master's degree with 6+ years of experience. Additional experience may be considered in lieu of a degree. Active TS/SCI security clearance. Extensive experience with cyber infrastructure or security tool engineering. Demonstrated experience supporting Computer Network Defense (CND) operations and technologies. Professional experience designing, developing, integrating, implementing, operating, and analyzing cybersecurity technologies. Experience with Microsoft Sentinel, Defender, Azure cloud services, log ingestion, and automation. Strong understanding of SIEM, SOAR, incident response, RMF, STIG/SRG, and vulnerability remediation.
Required Certifications:
Active IAT or IAM Level
II / III
DoD approved 8570 baseline certification, such as Security+ CE or CASP certification, or the ability to obtain the required certification within 30 days of hire.
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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:
September 8, 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 $107,900.00 - $195,050.00 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.
