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Operating Systems Test Engineer

Leidos

Posted today
Secret
Unspecified
25%
Unspecified
IT - QA and Test
Orlando, FL (On-Site/Office)

R-00175539

Description

The Decision Advantage Business Area at Leidos has an opening for an experienced   Operating Systems Test Engineer   to work in our Orlando, FL office. Department of the Air Force (DAF) Battle Network and supporting infrastructure. In this mission we support the Department of the Air Force (DAF) to field and  operate  the customer's Digital Infrastructure. The   Operating Systems Test Engineer   will be involved in day-to-day activities and strategic long-term maturation of complex systems. Details are as follows:    ​ ​   

​Primary Responsibilities:  

  • ​ ​​ The   Test   team   within the Digital Infrastructure Network Integration Lab (DI-NIL)   will   be responsible for   maintaining   the DI-NIL architecture and services. There are levels of support needed throughout to include RHEL , Windows , and other systems and appliances   to include structure and compliance configurations, integration with Active Directory for authentication, as well as day-to-day management and review of the architecture.
  • ​ All systems   destined for operation on the production network will pass through the DI-NIL for V&V testing   from the build through configuration to service delivery .    This position will work with the team to ensure all   operating   systems meet the strict compliance   required by DoD guidance as well as ensuring   all system capabilities are configured for   optimum   performance for the underlying operating system.
  • ​ Full documentation of builds and configurations   utilized   within the environment are mandatory as well as process flow documentation to ensure all required tasks are documented and repeatable.
  • ​ The DI-NIL support effort will also include working with customers to ensure the needed   operating systems are   configured properly and access has been configured to allow a least privilege concept during stakeholder activities within the environment.
  • ​ Additional   duties will include backing up other personnel in support of the DI-NIL effort which is focused on Verification and Validation for the Digital Infrastructure Network.  


   

​Basic Qualifications    

  • ​ Bachelor’s degree and 8+ years of prior relevant experience or   master’s   degree   with 6+ years of prior relevant experience . Additional years will be considered in lieu of degree.
  • Secret clearance with the ability to obtain a TS/SCI clearance.
  • Demonstrable knowledge   of operating systems   concepts and applying these concepts to Department of Defense programs.
  • D emonstrable experience in design review participation and providing customer centric input.
  • ​ Strong written and verbal communication skills to collaborate with customer representatives, domain experts, and other systems engineers in the development of complex DoD systems.
  • ​ Demonstrated ability to   participate   in cross-functional planning, coordination, and task execution situations involving the full spectrum of system integration activities.
  • ​ Ability to work well with people from many different disciplines with varying degrees of technical experience.
  • ​ Mid-level network understanding.
  • ​ Mid-level understanding of government systems security testing (ACAS/Nessus) and remediation – ability to discuss security issues and concerns.
  • ​ Demonstrated ability to brief technical and non-technical customers.

​ ​    

​Preferred Qualifications.     

  • ​ 4 years of   DoD-based   system security testing (ACAS/Nessus) and remediation   with the   ability to discuss security issues and concerns.
  • ​ Prior experience designing and deploy ing   networks.
  • ​ Prior experience with   SAFe   Agile implementation.
  • ​ Demonstrated experience with Agile program execution and using agile tools ( e.g.   Jira and Confluence).
  • ​ Prior experience support Department of the Air Force programs.
  • ​ Previous   experience working on complex multi-domain systems.
  • Experience with design and validation of Cloud and Edge Computing and Network.
  • ​ Demonstrable knowledge   of   test automation and test result analysis.
  • ​ Demonstrable experience in network topologies to   validate   functionality, performance, stability and scalability of features and products.
  • ​ Proven   expertise   in creating test methodologies and writing test specifications.
  • ​ Experience in Integration, test, verification, and validation    


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: February 9, 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 -

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 Us
Leidos is a Fortune 500® technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, civil, and health markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $13.7 billion for the fiscal year ended December 31, 2021. For more information, visit www.Leidos.com.
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Job Category
IT - QA and Test
Clearance Level
Secret
Employer
Leidos