System Administrator, Senior
$148.3k - $266.9kParsons Company
Sr. System AdministratorParsons is the premier national security and critical infrastructure solutions provider. We have unparalleled tactical-to-strategic level experience in securing the platform and operational technology of National Security Systems – a mission at the heart of our intersecting work across defense, intelligence, and critical infrastructure.Our National Security Solutions team needs a Sr. System Administrator to support our expanding portfolio of work in the Intelligence Community (IC). As a collaborative member of a small and mostly autonomous team, this position directly supports secure enclave 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, network rights, and access to systems and equipment.Plan, execute, and verify data redundancy and system recovery procedures.Install, update, and troubleshoot systems and servers.Comply with organization systems administration standard operating procedures.Implement and enforce local network usage policies and procedures.Manage system and server resources including performance, capacity, availability, serviceability, and recoverability.Monitor and maintain system and server configurations.Perform repairs on faulty system and server hardware.Troubleshoot hardware/software interface and interoperability problems.Required:Bachelor's degree in a technical discipline and 15 years' experience as a System Administrator, OR High school diploma and 20 years' experience as a System AdministratorExperience with Windows Server Administration, Active Directory, and Group PolicyFamiliarity with Linux Server AdministrationFamiliarity with VMware/ESXi, VMWare Virtual Networking, and VMware vCenterNetworking Switching and Router ManagementStorage Management (NetApp)Hardware and Operating System troubleshootingSystem hardeningSecurity Compliance Scanning (Nessus, ACAS)Understanding of project design within the scope of security (RMF) requirementsActive TS/SCI security clearance with polygraphActive DoD IAT Level II certification (e.g. CCNA-Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP)Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.Security Clearance Requirement:An active Top Secret SCI w/Polygraph security clearance is required for this position.Salary Range: $148,300.00 - $266,900.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status. Parsons Company
$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 role...Senior- Reflexive Concepts is seeking a skilled Senior Systems Administrator to join our team! In this role, you will be a collaborative member of a small and mostly autonomous team directly supporting secure enclave development networks. In this role you will: Conduct functional...SeniorLocal area
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$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$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$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 employmentContract 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
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$170k - $220k
Worker Type Regular Job Description 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...SeniorPermanent employmentContract workWork experience placementLocal area$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- Bowler Pons is seeking a Systems Administrator to provide host-based systems administration and engineering support for a DoD customer's mission-critical IT infrastructure. The successful candidate will bring hands-on expertise administering, securing, and modernizing Windows...SeniorDaily paidFull time
$180k - $205k
...Job Description Job Description Red Arch Solutions is seeking a Senior Systems Administrator to support a software development / engineering project looking to productize their system. Qualifications: Contractor will be supporting an IC wide mission environment...SeniorContract workFor contractorsWork experience placementLocal area- Senior Discovery IT System Administrator Employment Type: Full-Time, Executive-Level Department: Legal CGS is seeking a dedicated Senior Discovery IT System Administrator to join a fast-paced and hard-working team to assist with any legal accounts. As a Senior Discovery...SeniorFull timeFor contractorsFlexible hours
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$30.53 - $53.44 per hour
...Sr. Systems AdministratorThe Sr. Systems Administrator supports and maintains enterprise Linux/UNIX systems across on-premises and Microsoft Azure environments, with a strong focus on RHEL and Ubuntu. This role is responsible for system administration, troubleshooting...SeniorWork experience placementLocal area$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- ...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
- ...Job Description Job Description Senior Systems Administrator II 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...SeniorFull timeContract workFor contractorsWork at officeFlexible hours
$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$10k
...Senior Linux Systems AdministratorAt Wyetech, you'll be at the center of an award-winning corporate culture, breaking technological barriers... ...our industry.We are seeking two (2) Senior Linux Systems Administrators with networking experience to support a high priority and...Hourly payFull timeContract workWork experience placementSummer workImmediate startRemote work$96.09k - $120.11k
...Senior Network AdministratorDMI is looking for a Senior Network Administrator to support a large State of Maryland agency in Baltimore, MD.Duties and Responsibilities:Serves... ...university in Computer Science, Information Systems, Engineering or a related field; or Technical'...SeniorFor contractorsWork at officeRemote work$180k - $230k
...Sr. Systems Administrator Summary Join a fast-paced team supporting a large, complex enterprise IT environment with geographically distributed and highly secure systems. This role provides hands-on system administration, troubleshooting, security, and infrastructure...SeniorFor contractorsCurrently hiringLocal areaImmediate startFlexible hours$180k - $265k
...Senior Linux AdministratorOur contract supports more than 12 efforts with varying levels of hardware and software development requirements... ...troubleshooting and maintenance of Information Technology (IT) systems.Provides support to IT systems including day-to-day operations,...SeniorHourly payContract workFor contractorsWork at officeMonday to Friday$150k - $160k
...virtual machines running in a cloud infrastructure (Amazon AWS). Evaluates systems for IAVA compliance and applies necessary security updates/patches. Performs command line system administration tasks on virtual machines. Handles regular system backups and...- ...return, we offer a world-class, truly unique employee experience that is rare within our industry. We are seeking two (2) Senior Linux Systems Administrators with networking experience to support a high priority and highly visible malware analysis modernization program. The...Full timeContract workRemote work
- ...Job Description Job Description SECURITY CLEARANCE: TS/SCI with both Polygraphs are required POSITION: Systems Administrator LCAT: Systems Administrator, Level 4 REQUISITION: NIN-SA2-24.120125 LOCATION : Linthicum Heights, Maryland JOB DESCRIPTION...Shift work
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