Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

System Administrator - Junior

$50.7k - $91.65k

Dormont Manufacturing Co

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our mission, vision, and values guide the way we do business. If this sounds like the kind of environment where you can thrive, keep reading! The Intel Security Sector delivers technology-enabled services and mission software capabilities for defense and intel customers in the areas of cyber, logistics, security operations, and decision analytics. Your greatest work is ahead! This position will be located at one of our customer sites in Bethesda, MD; Reston, VA; or Joint Base Anacostia-Bolling, DC. We are seeking a Systems Administrator. Your job will be to bring together systems administration, systems maintenance, and systems performance optimization. As an integral member of the team, you will work closely with other infrastructure, network engineers, and system engineers on the following key tasks: Perform builds, installs, configuration, administration, and troubleshooting in virtual and physical environments, including base configuration, security, and system patching. Provide OS hardening and system patching. Develop scripts to support patching, configuration, and other infrastructure team tasks. Set up administrator and service accounts, maintain system documentation, tune system performance, install system wide software, validate and implement system patches, including critical security patches. Ideal candidates are motivated by mission impact, comfortable operating in complex stakeholder environments, and interested in building deep domain expertise while delivering capabilities with real-world national security outcomes. Successful candidates will work on projects to design, develop, and deploy software applications to support DIA/NDOC OSINT production on behalf of the Defense Intelligence Enterprise (DIE). Responsibilities Include: Monitoring system health, network configuration and performing preventive maintenance. Working with more senior technicians in identifying, troubleshooting, and correcting hardware and software issues including network connectivity. Providing technical assistance to companion work groups in support of overlapping projects and maintaining good inter-departmental relations. Communicating with users and publishing status of any system outages, as needed. Proactively contacting customers when infrastructure processes are significantly delayed or may impact their ability to complete a business function on time. Participating in the creation and ongoing maintenance of documentation to ensure clear, concise, and accurate information is readily available to assist with incident resolution. Undertaking project work and providing support for implementing IT enhancements. Clearance Required: Active TS/SCI clearance with the ability to obtain and maintain TS/SCI with Polygraph. Required Experience, Skills, and Education: Bachelor's degree and less than 2 years of Systems Administration experience, including internships. Additional years of experience in lieu of degree are acceptable. Active TS/SCI clearance with the ability to obtain and maintain TS/SCI with Polygraph. US Citizenship is required. Experience working in an Agile project management environment. Experience documenting test results for corrective actions, reporting and audits. Experience with Windows Server (2016, 2019, 2022) and Windows Desktop (10/11). Experience with Windows Patching and Package management. Experience with Windows Server builds: virtual and physical. Experience with Group Policy Objects, Active Directory, Windows PKI infrastructure, Storage, Remote Access Server, DNS, DHCP and User Profile Management. Strong verbal and written communication skills. Enthusiastic with the ability to work well on a team and a self-starter who can work on their own. Preferred Experience, Skills, and Education: Bachelor’s degree in Computer Science, Data Science, Engineering, Information Systems, or related technical discipline. An additional 4 years of experience, for a total of 7 years of experience may be substituted for a Bachelor’s degree. Three years of experience in the field with at least a portion of the experience within the last two years. A significant share of your data analytics experience in direct support of military or intelligence community customers, demonstrating progressive technical development and mission-focused outcomes. Significant experience dealing with at least two of the following data classes: open source, publicly available information (PAI); forensic media (i.e., DOMEX); measurement and signatures intelligence (MASINT); or cybersecurity and cyber forensics. Experience or familiarity with security standards, software architectures, and/or network security technologies (Multiple Domain, PKI, SSP, Vulnerability Assessment, etc.). Experience supporting a software configuration management and development environment. Experience with data engineering tools such as Kubernetes/Rancher, Cloudera. Experience with Configuration Management Chef and IaC tools such as Salt or Ansible. Experience with scripting languages, CI/CD tools, Elasticsearch, or Gitlab. Experience working in air-gapped environments. Pay Range: Pay Range $50,700.00 - $91,650.00 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. Original Posting: April 30, 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. #J-18808-Ljbffr Dormont Manufacturing Co

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the System Administrator - Junior in Reston, VA vacancy
  •  ...The Junior Systems Administrator is responsible for the day-to-day administration, maintenance, and support of Windows-based information systems, cloud services, and end-user computing environments. Working under the guidance of senior technical staff, the Junior Systems... 
    Junior
    Local area
    Remote work

    Paragone Solutions Inc

    McLean, VA
    3 days ago
  • $7.5k

     ...Job Brief System Administration; Help Desk Job Description RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. They... 
    Junior
    Work experience placement
    Immediate start
    Flexible hours

    RealmOne

    Chantilly, Loudoun County, VA
    4 days ago
  •  ...POSITION OVERVIEW The Senior Systems Administrator ensures the stable operation of Customer's computer software systems and network connections in support of the DoD. This role is responsible for planning, installing, configuring, maintaining, and optimizing network software... 
    Suggested
    Contract work
    Local area
    Remote work

    BaseCamp Consulting & Solutions

    Reston, VA
    5 days ago
  •  ...established in 2006 to provide computing and consulting services for government and commercial entities. Our services improve Information System networking performance and compliance and protect electronic assets from loss and compromise. We welcome your application to... 
    Suggested
    Local area
    Immediate start

    J5 Consulting

    Reston, VA
    3 days ago
  •  ...POSITION TITLE: Systems Administrator POSITION SUMMARY: IMRI is seeking an experienced Systems Administrator to support and maintain secure, high-performing IT environments across on‑premises and Azure cloud systems. This role focuses on managing servers, identity services... 
    Suggested

    Information Management Resources Inc

    Reston, VA
    3 days ago
  • $145k - $165k

     ...Overview Systems Administrator Herndon, VA TS/SCI with Poly At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because... 

    Bridge Core

    Herndon, VA
    3 days ago
  •  ...important IT assets and invest in the long-term career development of every employee! We are currently looking for the next Cloud Systems Administrator to join our team of experts! Position Description Seeking an experienced Cloud Systems Administrator to join our team... 
    Full time
    Flexible hours
    Weekend work

    Mantis Security Corporation

    Reston, VA
    2 days ago
  • $87k - $116k

     ...technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is powered by Lattice OS, an AI-powered operating system that turns... 
    Full time
    Work experience placement

    anduril

    Reston, VA
    5 days ago
  •  ...Systems Administrator Why This is an Exciting Role: The Boeing Defense, Space & Security (BDS) organization, Intelligence Systems portfolio, seeks a DevOps Developer to join our Mission Operations team in Herndon, VA. Our team focuses on delivering complex solutions in... 
    Work experience placement
    Remote work

    RPMGlobal

    Herndon, VA
    5 days ago
  • $168k - $206k

     ...Senior Systems Administrator Location: Herndon, VA. Responsibilities Monitoring system performance, troubleshooting issues, and performing regular maintenance tasks such as applying updates, patches, and security fixes. Assist Network Engineers with configuring and managing... 
    Work experience placement
    Remote work
    Flexible hours

    Boeing

    Herndon, VA
    3 days ago
  •  ...Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team. Job Title: Systems Administrator II Location: Reston, VA Job Location: Assist in server operations, resolving customer issues for Unix/Linux based... 

    Ampcus

    Reston, VA
    2 days ago
  • $150k - $180k

     ...to other position specific requirements which may impact salary. Position Overview Amatriot is seeking an experienced Senior Systems Administrator to support the National Programs Intelligence Systems & Application Operating Unit. The SITE III ITS Task Order effort is... 
    Full time
    Local area
    Weekend work

    Government Tactical Solutions, LLC

    Herndon, VA
    2 days ago
  •  ...extensive experience and effective approach, ensuring that we lead with both innovation and integrity. The Position Senior System Administrator provides Tier I/II/III systems administration and IT operations support within classified environments. This role delivers subject... 
    Relocation
    Day shift

    The One 23 Group

    Herndon, VA
    5 days ago
  • $92k - $185k

     ...Security Clearance Active TS/SCI with FS Polygraph required Position Apogee's ideal Systems Administrator will provide support for a comprehensive suite of applications. The necessary support & services include systems administration & Tier 2 help desk support in a 24/... 
    Temporary work
    Flexible hours
    Shift work

    Apogee Integration

    Herndon, VA
    3 days ago
  •  ...Overview Leidos has an opening for a Systems Administrator in Reston, Virginia. Responsibilities include installation, configuration, administration, support and maintenance of systems, including associated hardware. Responsibilities may include management of systems infrastructures... 
    Work experience placement

    Leidos

    Reston, VA
    1 day ago
  • $146k - $194k

     ...companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is...  .... ABOUT THE JOB We’re seeking a skilled Classified Systems Administrator with expertise in Linux and Microsoft environments to provide... 
    Full time
    Work experience placement

    Visa Hunt

    Reston, VA
    3 days ago
  • $112k - $179k

     ...Systems Administrator Job Locations US-VA-Herndon | US-DC-Washington | US-MD-Riverdale Requisition ID 2025-154686 Position Category Information Technology Clearance Top Secret/SCI w/Poly Responsibilities Job Summary : We are seeking a highly skilled and experienced System... 
    For contractors

    Peraton

    Herndon, VA
    3 days ago
  •  ...Overview VTG is seeking a skilled Systems Administrator to manage, maintain, and support enterprise IT infrastructure. This role is responsible for ensuring the reliability, security, and performance of servers, networks, and systems while supporting day-to-day operations... 

    VTG Defense

    Herndon, VA
    3 days ago
  • $90k - $150k

    A veteran-owned defense contractor is seeking a Junior-level Data Scientist to support the Defense Intelligence Agency. This entry-level role involves conducting data analytics, building AI tools, and collaborating with teams to optimize advanced analytics. Candidates... 
    Junior
    For contractors

    Celestar Holdings Corporation

    Reston, VA
    2 days ago
  • BT-350 - Systems Administrator Skill Level: Senior Herndon, VA (fully on-site, no remote option) Please do NOT apply if you do not have an active Poly clearance. Those without a Poly will not be considered. Required Skills: Demonstrated experience configuring and administrating... 
    Remote work

    Bespoketechinc

    Herndon, VA
    2 days ago
  • Title: Systems Administrator SME Location: Herndon, VA Clearance: Active TS/SCI w/ Polygraph needed to apply Company Overview Cornerstone Defense...  ...required. Provide guidance and knowledge transfer to junior team members. Quality Assurance & Testing Test and validate... 

    Cornerstone Defense

    Herndon, VA
    4 days ago
  • Responsibilities Support the National Programs Intelligence Systems & Application Operating Unit. Install, configure, and maintain...  ...with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX... 

    Jobtailor

    Reston, VA
    1 day ago
  • Overview Job Title: Systems Administrator Location: Herndon, VA (Hybrid: 3 days/week onsite: Tuesday, Wednesday, Thursday) Type: 6+ months Contract Rate: $Open /hr. Job Description The ideal candidate is a reliable, hands-on Microsoft 365 administrator with strong troubleshooting... 
    Contract work
    Work at office
    3 days per week

    TWO95 International

    Herndon, VA
    3 days ago
  • Position: Systems Administrator in the Intel Security Sector at Leidos. Location: Bethesda, MD; Reston, VA; or Joint Base Anacostia‑Bolling, DC. Key Responsibilities Perform builds, installs, configuration, administration, and troubleshooting in virtual and physical... 
    Remote work

    Dormont Manufacturing Co

    Reston, VA
    1 day ago
  •  ...Description REQUIRED: Active TS/SCI with Full Scope Polygraph LOCATION: Full-time onsite in Herndon, VA Step into a role as a Systems Administrator where you’ll manage a cloud‑based R&D environment, deliver responsive O&M support, and assist with application integration... 
    Full time

    Ardent Principles, Inc.

    Herndon, VA
    4 days ago
  •  ...MANTECH seeks a motivated, mission-oriented Intermediate Systems Administrator to join our team in Chantilly, VA. As the Systems...  ...permission inheritance Provide leadership and mentoring to junior administrators and technical support Security+ certification... 

    MANTECH

    Chantilly, Loudoun County, VA
    2 days ago
  •  ...MANTECH to connect them with exceptional professionals for this role. MANTECH seeks a motivated, mission-oriented Senior Systems Administrator to join our team in Chantilly, VA. As a Senior Systems Administrator you will be responsible for providing a full range... 

    MANTECH

    Chantilly, Loudoun County, VA
    20 days ago
  • $100.8k - $127.5k

     ...Junior Program Manager CGI is seeking a Junior Program Coordinator / Associate Project Manager to support cloud and enterprise software initiatives within a Financial Services environment. This role will assist with project planning, coordination, documentation, status... 
    Junior

    CGI

    Reston, VA
    4 days ago
  •  ...deem the critical foundation of our ongoing success. Job Title Junior Data Analyst (DIA) Job Type Full-time Location Reston, VA US (Primary...  ...and predictive analytics such as statistics, rule‑based systems, regression, and data mining systems, and deploying such systems... 
    Junior
    Full time
    Local area

    PrimCorp

    Reston, VA
    3 days ago
  • Citigroup Inc. is seeking an entry-level Personal Banker in Falls Church, Virginia, responsible for executing sales activities and fostering relationships with customers. The role includes assisting with business credit requests, delivering client services, and educating...
    Junior

    Citigroup Inc

    Falls Church, VA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to System Administrator - Junior. Be the first to apply!