Systems Administrator Jobs
$110k - $140kClearanceJobs
Systems AdministratorJoin a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With more than 1,700+ team members, 1,500+ AI & data experts, and 100+ prime contracts, we deliver at scale and with purpose. Credence is a welcoming environment for those looking to grow and make a meaningful impact. We encourage employees to push boundaries and help solve critical, world-changing federal challenges.Position Summary: Credence has an immediate need for a Systems Administrator to support and secure our enterprise IT environment across Microsoft 365, Azure, AWS, and Google Cloud Platform. This role handles day-to-day systems administration, endpoint management, identity and access administration, and Tier II escalation support for a hybrid workforce operating under federal contractor compliance requirements.Responsibilities include, but are not limited to the duties listed below:Systems and Endpoint AdministrationIdentity and Access AdministrationSecurity Operations SupportSupport, Automation, and ContinuityRequired Qualifications:U.S. Citizenship required.Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field, or equivalent experience.5+ years of experience in systems administration with a security-conscious operating approach.Proficient in administering Microsoft 365, Azure, AWS, and Google Cloud Platform environments.Hands-on experience with Microsoft Intune and Windows Autopilot in a managed endpoint environment.Hands-on experience with Microsoft Defender, Microsoft Sentinel, Proofpoint, and Nessus or an equivalent vulnerability management platform.Strong scripting skills in PowerShell and/or Python for automation and integration tasks.Working knowledge of Windows, macOS, and Linux operating systems, including server administration fundamentals.Excellent troubleshooting, documentation, and interpersonal communication skills.Ability to work independently with minimal supervision and maintain confidentiality when handling sensitive data.Preferred Qualifications:Certifications such as Microsoft AZ-500, AWS Certified Security Specialty, AWS Certified Solutions Architect Associate, CompTIA Security+, CCNA, or similar.Background administering virtualized server environments such as VMware or Hyper-V, as evidence of transferable Windows and Linux server administration depth applicable to cloud-hosted compute.Experience supporting a federal contractor environment, including familiarity with CMMC Level 2 and SOC 2 requirements.Working understanding of compliance frameworks such as NIST 800-171, ISO 27001/27002, and CMMC.Familiarity with JSON and YAML, and with infrastructure-as-code or configuration management tooling.Experience contributing to IT or security project initiatives beyond day-to-day operational support.Salary Range: $110,000.00 to $140,000.00 annually. Actual compensation will be determined based on the selected candidate's experience, education, skills, and overall qualifications.Benefits:Health Care Plan (Medical, Dental & Vision)Retirement Plan (401k, IRA)Life Insurance (Basic, Voluntary & AD&D)Paid Time Off (Vacation, Sick & Public Holidays)Family Leave (Maternity, Paternity)Short Term & Long Term DisabilityTraining & DevelopmentWellness Resources
- ...Systems Engineer / Oracle Exadata Administrator Location: McLean, VA Level: Subject Matter Expert (SME) Overview: Square Peg Technologies is seeking a Systems Engineer SME to support an Intelligence Community customer in McLean, VA. This role focuses on administering...Suggested
$130k - $180k
Celestar, a B&A Company, is seeking a Database/Web System Administrator to support the Defense Advanced Research Projects Agency (DARPA) Program Security Services (PSS) task order. If interested and meet the qualifications, we encourage you to apply for this rewarding...SuggestedContract workLocal area$110k - $140k
...boundaries and help solve critical, world-changing federal challenges. Position Summary Credence has an immediate need for a Systems Administrator to support and secure our enterprise IT environment across Microsoft 365, Azure, AWS, and Google Cloud Platform. This role...SuggestedTemporary workFor contractorsImmediate startWorldwide$40k - $80k
Job ID: 2617428 Location: Arlington, VA, US Date Posted: 2026-09-29 Category: Information Technology Subcategory... ...a motivated and experienced Organizational Messaging System (OMS) System Administrator to join our team at the Pentagon in Arlington, VA. This role...SuggestedFull timeRemote workShift workNight shift$120k - $160k
Job ID: 2617568 Location: Colorado Springs, CO, US Date Posted: 2026-10-02 Category: Information Technology Subcategory... ...SAIC is currently seeking a motivated and experienced System Administrator to join our team at the Pentagon in Arlington, VA....SuggestedFull timeCasual workRemote workMonday to FridayFlexible hoursShift work- ...MITRE's Classified Infrastructure is looking for a Senior Systems Administrator to be part of a distributed team. A successful candidate will... ...with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work...Work experience placementInternshipLocal areaImmediate start
- ...Navstar is seeking a seasoned Systems Administrator to support mission-critical IT programs for national security. The role requires TS/SCI with Polygraph and 5+ years of systems administration experience, including Linux and Windows servers, Oracle databases, DNS, and...
$104.24k - $130.3k
...Senior Systems Administrator And Technical LeadOverview About M.C. Dean M.C. Dean is Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation's most mission-critical facilities, secure environments, complex infrastructure,...For subcontractorRemote workFlexible hoursNight shift$120.9k - $184.5k
...Classified Systems Administrator, IVThe Classified Systems Administrator, IV performs advanced to highly complex evaluation, design, implementation, and maintenance of classified servers, networks, and communications systems supporting secure computing environments. This...For contractorsWork experience placementWork at officeLocal areaRemote workRelocation- ...OS, SAN, NAS, Dell EMC Data Domain infrastructure.Day to day administration of Avamar and IBM Spectrum Protect/TSM enterprise backup & recovery... ...of Brocade SAN fabrics.Required skills: Must haves: Avamar system administration experience, experience with either TSM or IBM...Flexible hours
$150k - $240k
...Security. Role Description: Monitor the system’s logs and applications daily. Automate... ...years of experience in systems administration, for a total of 10 years. Required Skills... ...requirements to disclose compensation in job postings. Please note that actual...For subcontractorLocal areaFlexible hours- ...Freedom Technology Solutions Group is seeking a Systems Administrator to support the design, analysis, and deployment of secure, reliable software for our customer, either independently or within a team. Located in McLean, VA! Responsibilities Experience with Microsoft...Flexible hoursNight shift
- ...Sr. Systems AdministratorLeidos has a new and exciting opportunity for a Sr. Systems Administrator in our Intel Sector's (IS) Solutions Analysis Business Area (ASBA). Our talented... ...and make a difference in National Security!Job DescriptionThe Sr. Systems Administrator...Immediate startFlexible hours
- ...System Administrator - SeniorEnterprise Solutions and Management (ESM) is a rapidly growing government contractor that provides strategic IT services... ...an enterprise-level program within a federal environment.Job Description and ResponsibilitiesEnsures the stable operation...For contractorsWork at officeLocal areaRemote work
$75.52k - $94.4k
...telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers... ..., and cybersecurity industries. We are seeking a System Administrator 1 to join our Security and Electronic Systems (SES) business...Work at officeLocal areaFlexible hoursNight shift- ...Job TitleSystems AdministratorLocationMcLean, VA, 22101ClearanceTS/SCIExperience LevelMid Level Career (5+ yrs experience)Job DescriptionThe Systems Administrator will be responsible for maintaining and managing the company's computer systems and networks. This includes...Flexible hours
- ...Red Hat Enterprise Linux Systems ExpertAt The One 23 Group, our mission is to set the benchmark for excellence in government services... ..., related systems, and middleware, focusing on system administration for contract specific operations.Requirements:Oversee key system...Contract work
- ...Senior System AdministratorEnterprise Solutions and Management (ESM) is a rapidly growing government... ...customers. We are hiring a Senior System Administrator to support an enterprise-level program within a federal environment.Job Description and ResponsibilitiesEnsures the...For contractorsWork at officeLocal areaRemote work
- ...Systems AdministratorInnovative Defense Technologies (IDT), provider of cutting-edge cloud-based integration, automated testing and... ...systems in the US Department of Defense (DOD), is seeking a Systems Administrator to be part of our Security team and based out of our Arlington...Full timeWork at officeImmediate start
- ...Avalore is seeking a System Administrator to manage the War Data Platform (WDP) infrastructure, including user accounts, permissions, configurations, monitoring, backups, and automation. This role requires hands-on operation, routine health checks, security patches, and...
- ...Systems AdministratorAre you a Systems Administrator looking for a place to make an impact every day? Serco is the place for you! Join our team as a Systems Administrator in support of our Anti-Terrorism Force-Protection (AT/FP) program with the United States Navy.The...Work at officeWorldwide
- ...Systems Administrator Location: Arlington, VA Chenega Military, Intelligence & Operations Support (MIOS) invites qualified professionals to join... ...identifying and utilizing strengths. Opportunities include on‑the‑job learning and formal development programs, supporting...
- ...System AdministratorWe are seeking a proactive and detail-oriented System Administrator to join our team and help maintain the stability, security, and performance of our IT infrastructure. In this role, you will be responsible for managing servers, networks, and other...Temporary workImmediate start
$64k - $124.2k
...missions and the government forward! You Are: We are seeking a Systems Administrator with a solid foundation in Linux to support the management,... ...religious observance during the interview process or for the job you are interviewing for, please speak with your recruiter. Other...Live inWork at officeLocal area- Computer World Services provides Tier 2 IT operations and end-user support for DHS environments. The resource will assist daily operations, troubleshooting, installation, configuration, and maintenance of desktop hardware, software, peripherals, and related IT services...
- ...Systems Administrator, Secret Security Clearance Required, Arlington, VAThe Systems Administrator will perform a wide variety of system administration tasks for the Content Server solution. This could include installation, configuration, upgrades, and operational support...
$75k - $85k
...services to federal government customers. We are seeking a Senior Systems Administrator to play a key role in a critical DOD program — powering the... ..., Inc is 100% employee-owned. Come make a difference in a job that contributes to your future and helps us build an agile workplace...Temporary workImmediate startRemote work- ...USCRI in Arlington, VA is seeking a Microsoft 365 System Administrator to support cloud services, Intune, and end-user devices. The role focuses on Level 2 IT support, on-site operations, and maintaining secure, reliable technology for headquarters, field offices, and...Remote work
$87k - $98k
...alternative application process. Full Time Professional Arlington, VA, US Salary Range: $87,000.00 To $98,000.00 Annually Job Title: Systems Administrator II Location: Remote/Hybrid - DHS CISA; approved remote work location within the 50 United States or the District of...Full timeTemporary workWork at officeRemote workMonday to FridayAfternoon shift- ...Systems AdministratorKoniag Data Solutions, a Koniag Government Services company, is seeking a Systems Administrator with an active Top-Secret/SCI clearance to support KDS and our government customer in Arlington, VA. This position requires overnight hours. The normal...Local areaFlexible hoursShift workNight shiftDay shift
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