Leidos is seeking an experienced Principal Cloud Systems Engineer to join our Defense Enclave Services (DES) team, who will support an extensive digital modernization program critical to Defense Information Systems Agency (DISA) and Department of Defense (DoD) Fourth Estate Agencies. A Systems Engineer with a focus on Distributed Systems and understands how cloud infrastructure is built and maintained.
The position will support multiple engineering projects modernizing the DoD Environment, including the migration of applications and services from on-premise to the cloud for zero-trust network initiatives. These engineering efforts will include design, deployment, test, and migration of the network solutions the candidate develops.
PROGRAM Link: www.leidos.com/des
JOB LOCATION: Remote
CLEARANCE REQUIREMENT: Must possess an Active SECRET or above DoD clearance to be considered. (US Citizenship required)
Primary Responsibilities
Leverage experience in Systems Engineering and Architecture to design zero-trust network solutions for a hybrid on-premise and Azure enclave
Demonstrate an understanding of system Virtualization and Design by ensuring network modernization efforts properly address security requirements and can be implemented without affecting operations.
Support Cloud Deployment of modernized network services
Develop modern and secure network solutions by demonstrating experience with Virtual switches, VPC's, and Virtual Firewalls
Provide inputs to the design of the enterprise's cloud and mission architecture
Evaluate and support application architectures across platforms to ensure alignment to cloud and application modernization strategies, capabilities and requirements
Continually identify opportunities for improvement, including innovations aimed at improving the user experience, improving efficiencies, and lowering sustainment costs
Enforce security best practices and guidelines, leveraging knowledge of security policies, network security, and data security
Basic Qualifications
Bachelor's degree or equivalent experience and 12+ years of prior relevant experience
Expertise designing, deploying, and operating solutions built on Azure, AWS or GCP
Experience with Virtual switches, VPC's, and Virtual Firewalls
Experience with Identity Access Management (IDAM), AzureAD, and CyberArk, Okta or other modern ICAM solutions.
Understanding of Federal Government application, server, and network security requirements such as NIST, FedRAMP, and FISMA
Ability to work effectively within a distributed technical team, aided by strong written and verbal communication skills
Current IAT Level II (or higher) Certification such as Security + or CISSP
Preferred Qualifications
Recognized cloud certification, such as Microsoft Azure Associate Administrator
Familiarity with the Atlassian suite, including Jira and Confluence
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: November 2, 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 $131,300.00 - $237,350.00
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.
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 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
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.
Securing Your Data
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.
Commitment to Non-Discrimination
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.
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About the role
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Company description (from The Muse): Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health.
size: Large Size; industries: Information Technology; locations on The Muse: Reston, VA.
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What is the Principal Cloud Systems Engineer job at Leidos?
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