Systems Engineer Security Clearance

Position: Systems Engineer with Security Clearance
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- Description The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for a Systems Engineer in Fort Meade, MD.  The Engineer will perform sustainment, maintenance, Problem and Change management services to help ensure secure, reliable, and uninterrupted availability of the Department of Defense IP networks. Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations.

This position directly supports the DISA-provided capabilities and services.

Primary Responsibilities:

* Work with the program leadership team to define program-level architecture and engineering needs.
* Define system requirements for new capabilities.
* Define scope and high-level design of new capabilities.
* Apply system knowledge and engineering methodologies to design new capabilities and enhancements to the operational baseline.
* Create/update requirements and use case documentation.
* Create/update end user documentation such as user guides.
* Create/update architecture diagrams, flowcharts, graphics, and other documentation.

Basic Qualifications:

* Requires BS in Engineering (or a related discipline) and 4+ years of prior relevant experience or a Masters with 2+ years of prior relevant experience in lieu of a degree additional years of may be accepted.
* Experience with systems engineering methodologies.
* Experience with architecture diagrams.
* General knowledge of IP voice telephony concepts.
* Experience performing requirements analysis.
* Self-starter with the ability to work independently and in a team environment.
* Strong written and oral communication skills.
* Strong customer relation skills.
* DoD Top Secret clearance required.
* Security+ Certification or other DOD 8570 IAT Lvl II Certification - Security+ Certification will need to be obtained within a reasonable timeframe after starting if the selected candidate does not already possess one when hired.

Preferred Qualifications:

* Experience with network layered encryption topologies and methodologies.
* Experience with HAIPE devices.
* Experience with ITIL service delivery concepts and best practices.
* Experience with change, configuration and performance management Net Ops concepts.
* Experience with system security, design, and architecture. 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 26, 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 $87,100.00 - $ 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  . 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…