IT SysAdmin
$73.45k - $132.78kLeidos
The Homeland Security Airports, Borders and Security Division at Leidos currently has an opening for a Systems Administrator. This position will be responsible for technical planning, system hardware-software-network design, development and integration, verification and validation, and fielding. This position develops technical solutions - evaluating cost, risk, and supportability -- that require collaboration with internal experts and deep analyses and understanding of impact on end-product/solution. It requires deep understanding of and ability to apply principles, theories, and concepts of the technical domain and has broad understanding of other related specialty areas.
The technology environment is a multi-tiered, Java, web-based environment using JBoss Application Server and Portal technologies integrated with QuestionMark, Active Directory, MS SQL Server, IBI WebFOCUS, ILOG, and Oracle 19c database. The server environment includes Dell and other hardware, The environment is highly virtualized running VMware ESX supporting virtual servers running RedHat Enterprise Linux and Windows Server operating systems. The networking infrastructure includes Palo Alto & Cisco equipment (e.g., firewalls, Catalyst switches, MDS fiber switches etc.). External storage solutions equipment is from Dell.
Duties include performing systems requirements analysis, functional analysis, timeline analysis, trade studies, requirements allocation and interface definition, technical management, integration, system testing, and quality assurance. IMPACT: Works independently to achieve day-to-day objectives with significant impact on operational results or project deliverables. Responsible for entire projects or processes within a technical area.
The Systems Administrator will provide support for the management, operations, and maintenance of the SASS server, network, and database environments.
Provides continuous assurance of the successful day-to-day operation and viability of the SASS server and network environment according to established Service Level Agreements (SLAs).
Maintains RHEL, ESXi, and Windows operating systems, creates templated server images, creates snapshots/clones, manages storage, monitors logs, and creates/edits automation scripts.
Participates in disaster recovery failover testing as well as system/database backup maintenance and testing.
Monitors and coordinates synchronization between production and failover SASS environments (may require occasional travel).
Prepares and documents procedures for day-to-day operations and ensures that they are carried out.
Manages maintenance of the infrastructure, including application of critical and recommended patches and upgrades for system switches, firewalls, and SANs.
Coordinates on-site resources to support installation of new hardware or software releases. Some repairs and maintenance may require travel to customer sites.
Prepares regular security and operational reports for delivery to the customer in support of NIST 800-53 auditing.
Installs and manages SIEM monitoring agents and maintains STIG compliance.
Interacts with the customer directly and communicates concerns to Leidos project management and technical team members.
Bachelor's degree (or equivalent work experience or specialized training) in Information Technology, Computer Science, Software Engineering or related discipline
Minimum of three years hands-on experience with web-based server systems, Linux or other Unix operating systems, virtualization, and dealing with network connectivity and troubleshooting.
Expertisein VMWare and RHEL administration, including system hardening, performance tuning, and automation
Experience with creating process, procedures, and documentation relating to data center management, disaster recovery, and off-site backup storage and retrieval.
Experience in large, enterprise-level systems deployments and data center operations environments.
Experience with NIST 800-53 security requirements, managing STIG settings, interacting with various vulnerability scanning tools, and complying with audit activities related to regulatory compliance.
Azure and/or AWS cloud administration experience a plus
Experience with network/firewall configuration and IP setup a plus.
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.
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. 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. Securing Your Data
Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., com automated system - never from free commercial services (e.g., 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 View email address on click.appcast.io you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.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. Remote
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos is an equal opportunity employer/disability/vet.
- ...Desktop Engineer/System Administrator (TS/SCI) Reston, VA, USA Full-time Clearance: Top Secret/SCI Job Description As a systems administrator on our program, you will provide technical support for protecting critical information, systems, and assets. You will...SuggestedFull time
- ...Systems Administrator - Active Security Clearance CADRE is relied upon for delivering superior insight and leadership to solve the nation's most critical national security challenges in the most demanding environments. This Systems Administrator position is located...SuggestedWork at officeFlexible hours
- ...IT Enterprise System Admin 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position 4+ years with... ...Experience with Windows firewalls Expert level Microsoft Azure Administrator Expert level Windows admin skills (Active Directory, DNS,...Suggested
$82.9k - $146.17k
...Job Description • Provide Domain/Systems Administrator Engineer of the Mission LAN, and oversee the maintenance, optimal function, and patching of the LAN's operating system, and the GOTS, COTS, and custom software products running on it. • Perform system startup...SuggestedFull timeTemporary workFor contractorsWork experience placementWork at officeFlexible hours- ...Systems Administrator Why This is an Exciting Role: The Boeing Defense, Space & Security (BDS) organization, Intelligence Systems portfolio, is seeking a DevOps Developer to join our Mission Operations team in Herndon, VA. Our team focuses on delivering complex...SuggestedContract workWork experience placementRemote workWorldwide
- ...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...
- ...owned subsidiary of Lancesoft Job Description... Oversees system integration, hardware and software installation, configuration... ...Full Scope Polygraph 5+ years of experience as a systems administrator 5+ years of experience working in a cross functional...ApprenticeshipWork experience placementLocal area
- ...Systems Administrator TS/SCI FSP Department: Government Customer- Herndon Location: Herndon, VA ACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITION Systems Administrator: Maintains operation of multi-user computer systems...
- ...Systems Administrator - Senior Summary: The systems administration encompasses network and server administration. The systems administrator's responsibilities include: implementation of baseline changes and respond to change requests; perform technical evaluations,...Work at officeImmediate startRemote work
- ...System Administrator System Administrator Herndon, VA Active TS/SCI with Polygraph Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized...Work experience placementShift workNight shift
- We are seeking a skilled and detail-oriented Systems Administrator to support and maintain enterprise Windows and Linux server environments in a fast-paced, mission-focused organization. This role is responsible for building, configuring, securing, and monitoring systems...Contract work
- ...that enables engineering teams to identify and resolve bugs that traditional testing approaches miss. Antithesis runs your entire system in a deterministic simulation, breaks it in every way imaginable, and hands you a root cause and a perfect reproduction — no flaky...
- ...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...Contract workWork at office3 days per week
- ...System Administrator Reston, VA, USA Full-time Clearance: Top Secret/SCI Job Description As a systems administrator on our program, you will: Provide resolve break fix tickets and ensure customers receive the highest level of customer support. Help customers...Full timeShift work
- ...Systems Administrator Location: Reston, VA Work Type : Onsite Remote Work : NO Job Description Gridiron IT looking for a resourceful Systems Administrator with the desire to be a critical member of our team designing and developing creative new...Full timePart timeWork experience placementRemote work
$77.6k - $176k
...Systems Administrator The Opportunity: Are you looking for an opportunity to share your experience in Zero Trust Architectures (ZTA) and virtualization to safeguard our nation? As a systems security and network security engineer you can identify the tools and processes...Full timeContract workPart timeWork at officeLocal areaRemote work$142.79k - $184k
...Senior Systems Administrator Responsibilities for this Position Location: USA VA Reston Full Part/Time: Full time Job Req: RQ219957 Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret...Full timeTemporary workPart timeImmediate startRemote workWorldwideFlexible hours$115k - $145k
...Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide... ...with, and rely on every day. About the Job The Systems Administrator is a mature technical operator and platform specialist responsible...Permanent employmentWork at officeLocal areaRemote workWorldwideFlexible hours$190k - $210k
...Systems Administrator Markon is seeking an experienced Systems Administrator to support and maintain enterprise IT infrastructure in a secure, mission-focused environment. The ideal candidate will have deep experience managing Linux and Windows environments, implementing...Temporary workFlexible hours$86.7k - $151.7k
...the government solve major national security challenges in the space domain? We need your help. Our Team is looking for a System Administrator . In this role you will maintain Information Technology (IT) systems, and standard operating procedures for the systems...Work at officeLocal areaWorldwideFlexible hours- ...Job Title 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position 4+ years with PowerShell scripting... ...with Windows firewalls Expert level Microsoft Azure Administrator Expert level Windows admin skills (Active Directory, DNS, Group...
- ...IT Enterprise System Admin 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position Microsoft Azure Administrator experience Microsoft Azure Network Solutions experience Windows admin skills (Active Directory, DNS, Group Policy)...
$135k - $216k
...Sr Systems Administrator - Space Domain Job Locations US-VA-Herndon | US-CO-Aurora Requisition ID 2026-166203 Position Category Information Technology Clearance Top Secret/SCI w/Poly Responsibilities Peraton is seeking...Contract workWork at officeShift work$110k - $185k
...instruction to users Look through help documentation in order to find previous issues and resolutions Update issue tracking system Work with developer on potential troubleshooting methods as new issues arise Core support hours of 6:00am to 6:00pm across the...Contract workLocal area- • Plans, designs, and implements infrastructure changes and system upgrades. • Manages and troubleshoots multiple VMware environments. • Provides Windows Server and Linux administration, maintenance, and troubleshooting. • Creates STIG compliant images for Windows...
- ...Job Description We're hiring a Systems Administrator to act as Network Engineering Lab Manager supporting a wide range of customers. This position is a multi-disciplinary role that functions as a hybrid Network Engineer, Project Manager, and Logistics Manager. Positions...
- ...Sr. System Administrator SMS is seeking a Sr. System Administrator at Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as...Remote workShift workWeekend work
- ...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...Local areaImmediate start
- ...Job Description: We are searching for a mid- to top-level I.T. and systems administrator to help handle all aspects of our information technology infrastructure. This includes: help desk, network and systems admin, and DevOps support. You should have an I...
- ...Systems Administrator Job Locations US ID 2025-4271 Category Defense Type Full Time Overview Amyx is seeking to hire a Systems Administrator for our Defense Logistics Agency client, remotely. Responsibilities...Full timeTemporary workFor contractorsLocal areaRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to IT SysAdmin. Be the first to apply!
- IT administrator Reston, VA
- system admin Reston, VA
- computer systems administrator Reston, VA
- remote systems administrator Reston, VA
- microsoft systems administrator Reston, VA
- systems administrator Reston, VA
- server administrator Reston, VA
- application system administrator Reston, VA
- IT infrastructure administrator Reston, VA
- enterprise administrator Reston, VA

