Systems Administrator
Confidential Company
A growing security software company is seeking a System Administrator to lead endpoint and SaaS platform support and management across a hybrid workforce. This is a hands-on technical role with direct responsibility for provisioning, securing, and maintaining the systems employees rely on daily, while also delivering high-quality end-user support. The ideal candidate thrives in a fast-paced, security-focused environment and brings strong experience across macOS, Windows 11, Windows Server, Linux, iOS, and Android environments. Responsibilities Provision, configure, and maintain macOS, Windows, and mobile endpoints Provide end-user support for laptops, mobile devices, SaaS tools, and authentication systems Manage and improve MDM platforms (Jamf Pro and Microsoft Intune) Package and deploy software to Apple and Microsoft devices Build, maintain, and secure on-premises and virtual server environments (Windows Server 2019/2022, Linux) using VMware vCenter Take full ownership of Active Directory — Group Policy, DNS, DHCP, and domain controller administration Manage Azure infrastructure including virtual machines, virtual networks, storage, backup policies, and IAM/RBAC Troubleshoot corporate Wi‑Fi, LAN, VPN, and printer/scanner services Oversee endpoint backups and assist with backup infrastructure Maintain asset inventory and SaaS license tracking Document system configurations, procedures, and IT workflows Requirements Must be US Citizen In office 3-4 days a week 5+ years in IT support and systems administration (macOS, Windows, and mobile) Proficient in macOS, Windows 11, Windows Server 2019/2022, Linux, iOS, and Android 4+ years experience with MDM (Jamf Pro and/or Intune), SaaS tools, and cloud identity systems (Okta, Azure AD/Entra ID) Proven hands‑on experience building and configuring Windows Server environments — bare metal or VM provisioning in VMware Active Directory administration: domain controller operations, Group Policy, DNS and DHCP management Experience managing Azure VMs, networking, storage, and IAM/RBAC Experience supporting corporate networks: firewalls, DNS, VPN, Wi‑Fi Skilled in enterprise software deployment and packaging Experience with VMware vCenter and familiarity with Parallels Desktop Experience using AI‑assisted tools to improve IT operations, troubleshooting, documentation, and workflow automation Excellent troubleshooting, documentation, and communication skills Relevant hands‑on experience in IT support, systems administration, or a related technical field (degree or equivalent experience) Preferred Qualifications Bachelor’s degree in IT, Information Security, Computer Science, or equivalent hands‑on experience Jamf Certified Tech/Admin or Okta Certified Professional/Administrator PowerShell, Bash, or automation scripting experience Familiarity with SAML, SSO, or enterprise security frameworks Exposure to compliance‑focused or regulated environments #J-18808-Ljbffr
- ..., Federal and State Government Agencies. Learn More About ProSidian Consulting at DescriptionProSidian Seeks a Energy Data Systems Administrator | Evaluation Support [DOEOP045050] - DPLH Est.: 665.6 Hrs. ST | 0 Hrs. OT on a Exempt 1099 Contract: No Overtime Pay Contract...SuggestedFull timeContract workTemporary workFor contractorsH1bWork at officeFlexible hours
- ...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...SuggestedWork at office
$62k - $141k
IT Systems AdministratorThe Opportunity:Are you looking for an opportunity to combine your technical skills with big picture thinking... ...a customer-focused engineering solution.As an IT Systems Administrator on our team, you’ll have the chance to shape the development and...SuggestedFull timeContract workPart timeWork at officeLocal areaRemote work- ...processes are reinforced through our organization’s externally accredited certifications, which include ISO 9001:2008 Quality Management System (QMS), ISO/IEC 20000-1:2011 IT Service Management Systems (SMS, corporate ITIL certification), ISO 27001:2005 Information Security...SuggestedFlexible hoursWeekend work
$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$104.2k - $138.9k
...a hybrid role working on-site 3 days/week in Arlington VA area. Candidates must have a current TS/SCI clearance.The Senior System Administrator leads the administration, maintenance, security, and operational resilience of complex enterprise infrastructure supporting...Remote work3 days per week- ...Fort Meade, MDClearance Required: Top Secret/SCI with Active Full Scope PolygraphWe are seeking an experienced Linux-focused System Administrator (Level 2) to support a mission-critical program within the Intelligence Community at Fort Meade, MD. This is an on-site...Temporary work
- Universal Technical Resource Services, Inc. (UTRS) is currently seeking a System Administrator to join our team! At UTRS, we enjoy the benefits of working in a collaborative environment of close-knit team members. As a company, we provide a wide range of leading-edge engineering...Casual workWork at officeRemote work
- ...coordinates the implementation of the approved course of action.- Coordinates and monitors troubleshooting to isolate and diagnose common system problems; documents system events to ensure continuous functioning. Recommends course of action and implements as approved.-...Work experience placement
- Responsible for server operations inclusive of hardware, operating system (OS), and utilities on the servers.Has expertise in Red Hat... ...TrustExperience Required: 10 years’ experience in Systems Administration for software development projects utilizing Agile principlesEducation...
$110k - $140k
Hybrid in Washington, DCSalary - $110,000 - 140,000We are seeking a skilled and dependable Systems Administrator to join our team at the mid to senior level. This role carries direct responsibility for managing and maintaining enterprise Windows and Linux server infrastructure...$92.3k - $166.85k
...like an environment where you can thrive, keep reading! The MissionThe Leidos Digital Modernization Sector is seeking a GCCS-J Systems Administrator in support of the Air Force National Capital (AFNCR) IT Services program. Primary Responsibilities: Lead, mentor, and manage...Full timeLocal areaImmediate startRemote workRelocation- ...certifications, which include ISO 9001:2008 Quality Management System (QMS), ISO/IEC 20000-1:2011 IT Service Management Systems (SMS... ...the TTAC Infrastructure Modernization effort as a System Administrator (SA). The System Administrator is responsible for effective provisioning...Immediate startFlexible hoursWeekend work
$92.3k - $166.85k
Systems AdministratorLocation: Suitland, MDClearance: Active TS/SCILeidos is seeking a Systems Administrator to join our team in Suitland, MD, supporting Scientific and Technical Intelligence (S&TI) analysis at the Office of Naval Intelligence (ONI). In this role, you...Full timeWork experience placementWork at office$62k - $141k
Tier 2 System AdministratorThe Opportunity: Your combination of people skills and system administration knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the DoD? Your blend of...Full timeContract workPart timeWork at officeLocal areaRemote work$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...Full timeContract workPart timeWork at officeLocal areaRemote work$170k - $219k
As a Sr. Systems Administrator III, you will work as part of a collaborative and high-performing team providing hands-on expertise to deliver technical solutions within the highest levels of the federal government by designing, implementing, administering, and supporting...Full timeLocal area$62k - $141k
System Administrator, MidThe Opportunity: Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting our client?As a System Administrator...Full timeContract workPart timeWork at officeLocal areaRemote work$73.45k - $132.78k
Leidos has a new and exciting opportunity for a Systems Administrator in our INTEL SECTOR- Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and...Full timeWork at officeLocal areaImmediate startRemote workFlexible hours$77.6k - $176k
System AdministratorThe Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you... ...the Department of Defense? We’re looking for a System Administrator to help us design, deploy, and maintain Cross Domain Solutions...Full timeContract workPart timeWork at officeLocal areaRemote work- ...be responsible for maintaining compliance, securing operating systems, and executing patch management across Windows and Linux... ...Develop scripts using PowerShell, Perl, VBScript, or similar administrative languages.Collaborate with customers and technical teams to define...Full time
$77.6k - $176k
System Administrator, SeniorThe Opportunity: Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of War?...Full timeContract workPart timeWork at officeLocal areaRemote work- ...positioning us as one of a handful of elite companies to receive the highest form of third-party validation. are seeking a Systems Administrator who will be responsible for supporting and maintaining enterprise IT systems within a Department of Homeland Security (DHS)...Full timeContract work
$80k - $95k
...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...Contract workWork experience placementWork at officeLocal area1 day per week- ...IT Systems AdministratorUSADF has a need for an IT Systems Administrator in the Office of the Information Technology (Client)/Finance and Administration to support the agency's IT operations, infrastructure and security operations.Truncated Requirements (Duties include...Permanent employmentWork at office
- Systems Administrator - (Active TS/SCI security clearance with a current polygraph ) College Park, United States | Posted on 08/20/2026 Fifteen (15) years of experience as an SA in programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree...
$77.8k - $121.5k
...parental rights. Review our Statement of Faith to ensure we’re a fit for you. Locations: Washington, D.C. Team Overview As the Systems Administrator, you will be responsible for installing, configuring, maintaining, and ensuring the reliable operation of the organization’s...Permanent employmentTemporary workWork at office- ...A leading cloud solutions provider in Washington, DC is seeking an AWS Systems Administrator to manage and deploy AWS services. This position requires US citizenship, an active Top-Secret security clearance, and at least six years of IT experience including substantial...Flexible hours
- ...delivered by operating with a product mindset, prioritizing speed, ownership, and execution over bureaucracy. Description Title: System Administrator Location: Washington, D.C. (Onsite) Terms: Full-time Salary: 100,000 - 130,000 DOE Clearance: Active Top Secret with SCI...Full timeWork experience placementWork at officeFlexible hoursDay shiftAfternoon shift
- ...Systems AdministratorGES is seeking a Systems Administrator to support secure system operations within a high-visibility Pentagon environment.Key ResponsibilitiesInstall, configure, and maintain servers and network systemsManage Active Directory, DNS, DHCP, and virtualization...
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