Senior System Administrator
$170k - $220kAV
Job Description The primary role of the System Administrator is to manage and support mission-critical IT infrastructure. This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems. You'll work directly with both hardware and software systems in a dynamic, multi-platform environment. Worker Type Regular Summary The primary role of the System Administrator is to manage and support mission-critical IT infrastructure. This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems. You'll work directly with both hardware and software systems in a dynamic, multi-platform environment. Job Description The primary role of the System Administrator is to manage and support mission-critical IT infrastructure. This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems. You'll work directly with both hardware and software systems in a dynamic, multi-platform environment. Position Responsibilities Analyze and resolve complex problems associated with server hardware, applications and software integration Provide detailed analysis and feedback to agency management and internal customers for escalated tickets Manage the daily activities of configuration and operation of IT systems Provide Tier I and II IT support and problem resolution. Manage client/server/storage/network infrastructure. Configure and manage RedHat Linux and Windows systems. Support vulnerability management using Nessus. Handle STE/STN scoring and documentation. Maintain POA&Ms and patch systems based on security and functional parameters. Collaborate with hardware vendors on system specs and refreshes. Analyze escalated issues and provide actionable feedback Basic Qualifications (Required Skills & Experience) Bachelor's degree in Information Technology, Information Systems, Computer Engineering, or related field is required or equivalent combination of education, and experience. Five (5) years of additional SA experience may be substituted for a bachelor's degree. Minimum 15+ years of system administration experience. Strong RedHat Linux and Windows (2012/2016/2019) troubleshooting skills. Familiarity with Nessus, POA&Ms, and STE/STN initiatives. Proficiency configuring UNIX and Windows environments. An active TS/SCI with Polygraph Other Qualification & Desired Competencies Experience with virtual environments and system capacity planning. Salary Range: $170,000 - $220,000 The AV pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data. ITAR Requirement 120.15. Some positions will require current U.S. Citizenship due to contract requirements. Benefits AV offers an excellent benefits package including medical, dental vision, 401K with company matching, a 9/80 work schedule and a paid holiday shutdown. For more information about our company benefit offerings please visit: We also encourage you to review our company website at to learn more about us. Who We Are Based in California, AeroVironment (AVAV) is a global leader in unmanned aircraft systems (UAS) and tactical missile systems. Founded in 1971 by celebrated physicist and engineer, Dr. Paul MacCready, we’ve been at the leading edge of technical innovation for more than 45 years. Be a part of the team that developed the world’s most widely used military drones and created the first submarine-launched reconnaissance drone, and has seven innovative vehicles that are part of the Smithsonian Institution’s permanent collection in Washington, DC. Join us today in developing the next generation of small UAS and tactical missile systems that will deliver more actionable intelligence to our customers so they can proceed with certainty – and succeed. What We Do Building on a history of technological innovation, AeroVironment designs, develops, produces, and supports an advanced portfolio of unmanned aircraft systems (UAS) and tactical missile systems. Agencies of the U.S. Department of Defense and allied military services use the company’s hand-launched UAS to provide situational awareness to tactical operating units through real-time, airborne reconnaissance, surveillance, and target acquisition. We are proud to be an EEO/AA Equal Opportunity Employer, including disability/veterans. AeroVironment, Inc. is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Qualified applicants will receive fair and impartial consideration without regard to race, sex, color, religion, national origin, age, disability, protected veteran status, genetic data, sexual orientation, gender identity or other legally protected status. ITAR #J-18808-Ljbffr AV
$112k - $179k
ResponsibilitiesPeraton has an exciting opportunity for an experienced Senior Systems Administrator to provide system engineering, application and hardware support working with a Peraton Federal Customer in Annapolis Junction, MD. This on-site position offers the right...SeniorContract workRemote workShift work- ...Job TitleYou will work on a 7–9-person mixed Contractor/Civilian SA team supporting 3rd party systems.All supported systems are Linux hard boxes or VM's.You will come in look at your monitoring, catch up on emails and your team Skype chat room for mission critical updates...SeniorFor contractors
- ...development networks.Core Tasks:Conduct functional and connectivity testing to ensure continuing operability.Develop and document systems administration standard operating procedures.Maintain baseline system security according to organizational policies.Manage accounts,...SeniorLocal area
- ...team member has the opportunity to make a difference We rae seeking a motivated, career-oriented, and customer-focused Senior Systems Administrator to join our team at Annapolis Junction, Maryland . This is an onsite position. Primary Responsibilities:...Senior
$77.6k - $176k
...System Administrator, SeniorThe Opportunity:Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve a critical technology supporting the Department of Defense (DoD)? We're looking for a System...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$146.67k - $249.33k
...Senior Systems AdministratorElevate Your Expertise in a High-Impact EnvironmentJoin a team where technical precision meets mission-critical execution. We are seeking a Senior Systems Administrator to take ownership of a sophisticated, geographically distributed network...SeniorFull timeLocal area- ...Job Description Job Description 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...SeniorFull time
$140k - $185k
...information theft and augment protections for our customers systems. If you are looking to join a company that provides... ...consider joining our team! Peterson is seeking a talented Senior Systems Administrator . Seeking an SA to provide support for the design, planning...Senior- ...Job Description Job Description Description: The role of the System Administrator includes supporting the implementation, troubleshooting, and upkeep of Information Technology (IT) systems. This involves overseeing the IT system infrastructure and associated processes...Senior
$168k - $250k
...information theft and augment protections for our customers systems. If you are looking to join a company that provides... ...consider joining our team! Peterson is seeking a talented Senior Systems Administrator . Provides day to day systems administration and support...Senior$110k - $115k
...digital age. TDI is seeking a Virtual Desktop Infrastructure Systems Administrator to support a DISA contract. The administrator will provide... ...active TS/SCI clearance. RESPONSIBILITIES: Provide Senior level expertise for Virtual Desktop Infrastructure (VDI)...SeniorPermanent employmentFull timeContract workWorldwide- ...Description Vibrint is a trusted provider of mission-critical systems and analysis that transform our customers' capacity and... ..._____________________________________ We are seeking a Senior System Administrator for a funded role with quantifiable Linux system...SeniorTemporary workWork experience placementLocal areaImmediate start
- ...Job Description Job Description Senior HPC Systems Administrator Omega Enterprise Solutions is a Maryland-based, Service-Disabled Veteran-Owned Small Business (SDVOSB) with a special focus on the U.S. Department of Defense (DoD) and Intelligence Community (IC...SeniorFull time
$114k - $160k
...has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies seeks a Mid-Level or Senior Level System Administrator (SA) to join our intel team. The selected individual will provide system administration support for a large, complex...SeniorFull timeContract workWork experience placementFlexible hours$92.3k - $166.85k
...customers as they address evolving national security challenges. About the Opportunity Leidos is seeking an experienced Senior System Administrator to support the implementation, operation, troubleshooting, and maintenance of IT systems and infrastructure. You will manage...SeniorLocal areaImmediate start- ...Senior System AdministratorBe a member of a system administration team responsible for the design, deployment, installation, configuration and maintenance of Linux/UNIX-based server systems and software. Be able to learn quickly and work independently as well as collaborate...Senior
- ...Sr. Systems Administrator2HB Incorporated is seeking a Sr. Systems Administrator in order to support its government customer in Annapolis Junction, MD. This is a full-time position, and requires a TS/SCI/Full Scope Polygraph Clearance.2HB is seeking a candidate who shall...SeniorFull time
- ...Senior System AdministratorDCCA is a veteran-owned IT business specializing in providing innovative solutions to a variety of government... ...and benefits package. Visit our website at Senior System Administrator will maintain data files and control procedures for a complex...SeniorFlexible hours
- ...System AdministratorVetegrity is looking for System Administrators with 15+ years of experience. This position requires a TS/SCI with a Full Scope Polygraph. See more details below.Job Duties- Provide support for implementation, troubleshooting and maintenance of IT systems...SeniorTemporary workLocal area
$77.6k - $176k
...technology supporting the Department of Defense? We’re looking for a System Administrator to help us design, deploy, and maintain Cross Domain... ...90 days from the Posting Date. System Administrator, Senior The Opportunity: Your technical expertise makes you...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work- ...Sr. Systems AdministratorAnnapolis Junction, MDFull-TimeWe are seeking a highly skilled and experienced Senior Systems Administrator to join our IT team. The ideal candidate will be responsible for managing, maintaining, and improving the organization's IT infrastructure...Senior
$30.53 - $53.44 per hour
...Details Requisition #: 677278 Location: Johns Hopkins Health System, Baltimore, MD 21201 Category: Information Technology... ...Type: Full Time JOB SUMMARY: The Sr. Systems Administrator supports and maintains enterprise Linux/UNIX systems across on...SeniorFull timeWork experience placementLocal areaRemote workWork from homeDay shift- ...Senior System Administrator Job Location-Linthicum, MD Overview: Varada Defense is seeking an experienced Sr. Systems Administrator to support mission-critical systems within the Intelligence Community. As a collaborative member of a small and mostly autonomous team...SeniorLocal area
- ...Erias Ventures, LLC seeks a System Administrator to support a large-scale Linux environment, installing software, monitoring systems, and resolving issues across compute, network, memory, and storage components. The role requires a Top-Secret/SCI with FS polygraph...Senior
- ...Zohorecruit is hiring a Mid/Sr System Administrator in Annapolis, MD to support a distributed network across air-gapped enclaves. The role emphasizes security compliance, patching, and incident response for Windows and Linux systems. You will manage Active Directory...Senior
$10k
...technology allowances, and access to a state-of-the-art technology lab. Learn more at Your Mission ClearEdge is hiring a Senior System Administrator to support the administration, sustainment, and security of Linux-based systems across mission environments. In this...Senior$120k - $130k
...support Within the last 7 years, at least 5 of the years of experience must have been with modern digital/optical telecommunications systems and protocols, telephony switching system networks, and/or internet communications Job Description: Come join a dynamic, fast...SeniorFull timeImmediate startRemote workFlexible hoursShift workDay shiftAfternoon shift- ...unable to sponsor an employment Visa. What You’ll Be Doing (We don't love the bullet points, but we love the work!) As the System Administrator, you'll get to be responsible for providing network management and systems administration support to maintain the Agency’s High...SeniorVisa sponsorshipWork visa
$114k - $190k
...21! Belay Technologies is seeking a System Admin to join our intel team. The selected individual will provide system administration support for a large, complex network environment... ...last 6 years ~ Preferred Level: Mid or Senior ~ Clearance Requirement: FS poly...SeniorFull timeContract workWork experience placementFlexible hours$101.92k - $131.04k
...Senior Systems Administrator Employment Type: Full Time, Senior-level Department: Legal/IT 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...SeniorFull timeContract workFor contractorsWork at officeRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior System Administrator. Be the first to apply!
- senior software engineer ruby on rails Jessup, MD
- senior Jessup, MD
- senior activities Jessup, MD
- senior mainframe developer Jessup, MD
- senior medical science liaison Jessup, MD
- srs Jessup, MD
- senior level Jessup, MD
- senior resident engineer Jessup, MD
- senior application security Jessup, MD
- senior manager diversity & inclusion Jessup, MD



