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Junior Systems Administrator​/System Engineer

Job in San Diego, San Diego County, California, 92108, USA
Listing for: Leidos
Full Time position
Listed on 2026-06-27
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity, Systems Administrator, IT Support
Job Description & How to Apply Below
** Description*
* ** Junior Systems Administrator/System Engineer*
* ** Leidos
* * has a new and exciting opportunity for a  
** Junior Systems Administrator/System Engineer
** in our  
** Intel Sector's Cyber & Analytics Business Area (CABA)** . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At  
** Leidos** , we offer  
** competitive benefits** , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.  
** Join us and make a difference in National Security!*
* ** Job Summary*
* Leidos is seeking a  
** Junior Systems Administrator/System Engineer
** to join a high-impact, multi-agency program serving the United States Space Force (USSF) / Space Systems Command (SSC), the United States Air Force (USAF), and other critical mission stakeholders. The selected individual will play key role in enhancing, testing, and deploying a large-scale Satellite Communications (SATCOM) system to an existing infrastructure. The ideal candidate brings deep expertise in public key infrastructure (PKI) and key management, excels at complex problem solving, and has a strong record of delivering results as part of a high-performing team in a fast-paced Agile Development environment.

This position offers a unique opportunity to enhance the resilience and cybersecurity of mission-critical communications that protect our nation.

+  _This position is based near Columbia, Maryland, with possible alternative duty locations in San Diego, California, Englewood, Colorado, or Huntsville, Alabama. Relocation assistance may be available for qualified candidates._

*
* Primary Responsibilities:

*
* + Provide lifecycle system support, including integration and deployment activities.

+ Support integration of large-scale systems and system components within a complex, geographically distributed network environment.

+ Support system and network vulnerability assessments and the implementation of security best practices and hardening measures.

+ Perform hands-on system administration tasks such as deployment of software, vendor firmware, COTS, and FOSS solutions.

+ Maintain and enhance internal system functionality and performance, including interoperability with external systems and protection of critical data sets.

+ Collaborate closely with cross-functional technical teams (systems, software, test, etc.) in an Agile environment to integrate and deliver system capabilities.

+ Administer and support Linux and/or Windows-based components in a large high-performance computing environment.

+ Troubleshoot hardware and software issues by analyzing root causes of abnormal system behavior.

+ Support development and production environments by applying software builds, updating application versions, deploying security patches, and adjusting configuration settings as required.

+ Provide support for deployment activities, including software and hardware installation and integration.

+ Coordinate with internal Leads to define acceptable outage windows and execute maintenance activities with minimal impact to operations.

+ Create and maintain system documentation, including deployment procedures, configuration baselines, and system configuration guides.

+ Leverage current automation technologies and scripting to streamline system administration, configuration management, and monitoring tasks.

*
* Basic Qualifications:

*
* + Bachelor's Degree in Computer Science, System Engineering, or a related field and at least 2 years of related experience. Additional experience may be substituted for a Degree.

+ Must have experience working on large-scale hardware and software systems.

+ Must have experience with or familiarity with virtualization via any industry standard hypervisor.

+ Experience deploying application software, including application servers.

+

Experience with system analysis, risk analysis, and/or vulnerability assessments.

+ Must have experience developing creative solutions to technical issues that arise in real time.

+ Must have experience thoroughly tracking and documenting technical issues.

+ Ability to plan and prioritize tasking based on mission and team needs in a fast-moving environment.

+ Demonstrated ability to work independently and as part of a team while delivering high-quality results.

+ Strong verbal and written communication skills, with the ability to communicate technical information clearly and effectively.

+ Ability to work extended hours when necessary to support uptime on high-visibility production systems.

+ Ability to travel on occasion to non-hostile locations.

+  
*
* Clearance Required:

Must have an active or current TS/SCI with Polygraph.*
* *
* Preferred Qualifications:

*
* + Experience deploying application software including…
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