Systems Administrator
$98k - $163kGuidehouse
Job Family Systems Engineering Travel Required Up to 10% Clearance Required Active Top Secret (TS) We are seeking a reliable and skilled Systems Administrator to support enterprise IT operations and mission‑critical systems within secure federal environments. This role is responsible for managing servers, monitoring infrastructure, troubleshooting issues, and supporting hybrid cloud environments while ensuring systems remain secure, stable, and compliant with federal standards. The ideal candidate brings strong hands‑on experience with Windows and Linux administration, hybrid cloud fundamentals, and endpoint/server support across distributed environments. What You Will Do Administer, maintain, and support Windows Server and Linux systems across on‑premises and cloud‑connected environments. Monitor system performance, availability, and security posture using enterprise monitoring and logging tools. Assist with configuration, patching, updates, hardening, and vulnerability remediation for servers and core IT systems. Support identity, access management, and authentication services (Active Directory, Azure AD/Entra ID, Group Policy). Troubleshoot Tier 2/Tier 3 system issues related to performance, storage, networking, authentication, and application hosting. Assist with cloud‑based operations in AWS or Azure, including VM management, storage, IAM, and resource configuration. Manage backup/restore operations, disaster recovery testing, and system continuity processes. Maintain documentation including SOPs, configuration baselines, inventory, and system diagrams. Ensure systems align with federal security standards (STIGs, NIST 800‑53, RMF) and agency compliance requirements. Collaborate with network, cybersecurity, help desk, and cloud engineering teams to support mission objectives. What You Will Need Bachelor's degree or Additional FOUR (4) years' experience in lieu of degree. U.S. Citizenship An ACTIVE and MAINTAINED "TOP SECRET" Federal or DoD security clearance and ability to obtain SCI. Minimum of FIVE (5) years of experience in systems administration, IT operations, or enterprise infrastructure support Hands‑on experience administering Windows Server, basic Linux systems, virtualization platforms (VMware/Hyper‑V), and enterprise monitoring tools Familiarity with cloud environments (AWS or Azure) and hybrid IT operations Experience supporting secure, compliance‑driven, or federal environments Strong troubleshooting skills and the ability to work independently or as part of a technical team Strong communication, documentation, and customer service skills Nice to Have Certifications Security+ Network+ MCSA or MCSE AWS or Azure Administrator certifications (e.g., AZ‑104, AWS SysOps Administrator) Desired Additional Skills PowerShell, Bash, or Python scripting for automation and maintenance tasks Familiarity with SCCM/ConfigMgr, Intune, WSUS, or patch management platforms Knowledge of Zero Trust principles and secure configuration practices Experience with backup platforms, storage administration, or endpoint management Exposure to network fundamentals, firewalls, and basic cloud networking concepts The annual salary range for this position is $98,000.00-$163,000.00. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs. What We Offer Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace. Benefits Include Medical, Rx, Dental & Vision Insurance Personal and Family Sick Time & Company Paid Holidays Parental Leave 401(k) Retirement Plan Group Term Life and Travel Assistance Voluntary Life and AD&D Insurance Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts Transit and Parking Commuter Benefits Short-Term & Long-Term Disability Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities Employee Referral Program Corporate Sponsored Events & Community Outreach Care.com annual membership Employee Assistance Program Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.) Position may be eligible for a discretionary variable incentive bonus About Guidehouse Guidehouse is an Equal Opportunity Employer–Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation. Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco. If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at View phone number on click.appcast.io or via email at View email address on click.appcast.io. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation. All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or View email address on click.appcast.io. Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process. If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse’s Ethics Hotline. If you want to check the validity of correspondence you have received, please contact View email address on click.appcast.io. Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant’s dealings with unauthorized third parties. Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee. #J-18808-Ljbffr
$92.3k - $166.85k
Are you ready to be the technical backbone of a mission that matters? Leidos is seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting-edge Agile software development program, Chinook, for an Intelligence Community customer. In this...SuggestedFull timeContract workShift workDay shiftAfternoon shift$70k - $130k
Dark Wolf is looking for a Linux System Administrator who is interested in working in a fast- paced environment building and maintaining an extensive Infrastructure as a Service (IaaS), platform and hypervisor stack for a DoD customer. The successful candidate will work...SuggestedFull timeFor contractorsRemote work3 days per week- ManTech International seeks a System Administrator to support mission-critical national security systems within our Information Technology & Technical Support organization. In this role, you will manage and secure Windows and Linux servers, configure Active Directory,...Suggested
$80k - $100k
...Overview Edgewater Federal Solutions is currently seeking a detail-oriented IT System Administrator with Cyber Security experience to support our federal customer in the Washington DC area. The candidate will work with the government customer to support the review and...SuggestedContract workWork experience placementWork at officeLocal area1 day per week- Kaiva Tech, LLC is seeking a Systems Engineer/Administrator in Arlington, VA Clearance Secret Location 100% Onsite Position Overview: As a Systems Engineer/Administrator, you will be responsible for ensuring the secure and efficient operation of servers and systems...Suggested
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- ...company’s commitment to hiring and supporting active-duty and veteran employees. Responsibilities Position Overview As the OMC Systems Administrator, you will act as a model of customer service excellence to all organizational staff members in the 6.14.12 Office of...Contract workFor contractorsWork at office
- ...Oceaneering International is seeking a Systems Administrator to partner on a large enterprise IT contract for the DOD. The Systems Administrator provides technical system administration and operations. This role maintains enterprise network infrastructure to ensure proper...Contract work
- ...spectrum of services and solutions to the U.S government agencies and organizations. About the Position TJFACT is seeking a System Administrator – Information Management Specialist to support our DOS DT (Diplomatic Technology) IT team in Baghdad and Erbil, Iraq. The Systems...Temporary workWork at officeLocal areaRemote work
$112k - $179k
...Systems Administrator Job Locations: US-VA-Herndon | US-DC-Washington | US-MD-Riverdale Job Summary We are seeking a highly skilled and experienced System Administrator to join our team. This position will require the candidate to work closely with government customers...Contract workFor contractorsShift work- Configure, manage and troubleshoot Windows and Linux operating systems. Install/load operating system software, troubleshoot and maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance...
- ...promoting discoveries and innovations made by the research community. GWLAI is seeking a collaborative and service‑oriented Systems Administrator to join the Scholarly Technology Group (STG). STG is a highly collaborative unit where staff and librarians work together to...Full time
$91k - $96k
...Job Description This Senior Systems Administrator position is responsible for maintaining IT infrastructure to support Virginia Tech sites in Alexandria and Arlington. It includes system support, security monitoring, and virtualization, and will involve modifying or replacing...- ...MANTECH is seeking a highly motivated and collaborative System Administrator to join our team in Laurel , MD . In this role, you will develop, maintain, and enhance complex and diverse software systems based upon documented requirements. Work individually or as...Work at office
- Hands-on experience operating and administration of various Linux OS (i.e. RHEL9, Talos) Experience with building host image templates with automation tools (i.e. Terraform, Packer, SALT, Ansible, RHEL Satellite, Jumphost) Experience with Trellix Endpoint Security and...
$76k - $86k
...System Administrator Entarian is seeking a System Administrator to join and help lead a technical team dedicated to the operations and maintenance of the ground systems for NOAA Office of Satellite and Product Operations (OSPO) environmental‑monitoring satellite missions...Permanent employmentFull timeTemporary workWork at officeFlexible hours- ...Senior Systems Administrator Saliense Consulting LLC Washington, District of Columbia, United States About this position About Saliense At Saliense, we are committed to fostering a culture of continuous learning and professional growth. Our employees are encouraged to...
- ...We are seeking an experienced Senior Systems Administrator to support the lifecycle sustainment and modernization of mission-critical education, learning, and training applications supporting a Government enterprise. This role is ideal for an experienced systems administrator...Full time
- ...Overview The System Administrator provides mid-level technical support for the USCO eCO System and ImageTrust Operations and Maintenance contract, operating under the direction of the Senior System Administrator. This position carries primary responsibility for evening...Contract workShift workNight shiftWeekend workAfternoon shift
- ...application install status, client health, etc.) leveraging Microsoft System Center Configuration Manager. Provide technical support by... ..., and special projects as needed. Enforce Windows Server Administration standards, policies, and guidelines and implement them as needs...
- Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 3 focused on Linux and Windows systems administration, performance optimization, and user support. Essential Duties and Responsibilities Perform...Contract workMonday to Friday
- Belong. Connect. Grow. with KBR! Title Systems Administrator Why Join Us? Innovative Projects: KBR’s work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. Collaborative Environment:...Local area
- ...Position Summary The Systems Administrator is responsible for administering, maintaining, monitoring, and improving Red River's hybrid infrastructure environment. This role supports core business systems and technology platforms including Windows Server, Microsoft 365,...Work experience placementRemote work
$100k
...System Administrator Arlington, VA Pay From: $100,000 per year Must: Experienced System Administrator 5+ years of relevant experience in application development, systems administration, or enterprise system support environments Active Top Secret/SCI clearance required...Relocation$110k - $115k
Back Systems Administrator Cloud/Infrastructure Washington , DC Jul 21, 2026 Systems Administrator Washington, DC / Onsite U.S. Citizenship required Blu Omega is seeking a Systems Administrator to support a federal program focused on enterprise IT support for the Congressional...Temporary workWork at office- Description Oneida Professional Services is seeking a Systems Administrator to support the Defense Information School (DINFOS) Technology & Logistics Support Services contract at Fort Meade, Maryland. This position is responsible for administering, maintaining, and securing...Contract work
$125k - $135k
Overview Galapagos Federal Systems LLC is looking for an enthusiastic, well-qualified individual to fill the Systems Administrator position. This role offers the opportunity to work with a diverse and talented group of individuals committed to driving success. Job Summary...Full timeLocal areaFlexible hours- ...Analytica is seeking a seasoned and adaptable Senior System Administrator to join our infrastructure team in supporting an innovative federal mission. In this role, you will provide high-level technical leadership, engineering expertise, and strategic vision to optimize...For contractorsLocal area
- ...Employment Type Full Time, Senior-level Department Legal/IT Overview CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative people...Full timeContract workFor contractorsWork at office
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