Systems Administrator
$82.55k - $110.05kAmerican College of Radiology
American College of Radiology (ACR) is a progressive membership organization representing nearly 40,000 medical specialists in radiological care. As a member of our team, you will join a world leader in patient-centered care advocacy, policy and clinical research, quality and safety. Our culture encourages innovation, diversity, integrity and leadership. A nonprofit 501(c)(3), ACR (the American College of Radiology) has over 500 purpose-driven employees in the Greater Washington, DC and Philadelphia region. If you share our core values of: * Integrity * Visionary * Excellence * Leadership * Transparency * Member-Driven we need you on our team! We are seeking a reliable and detail-oriented Systems Administrator to oversee, maintain, and secure our core IT infrastructure. In this role, you will manage both on-premises and Cloud environments, ensure server and network reliability across LAN/WAN systems, and administer essential directory services and operational applications to support daily business operations. The System Administrators are tasked with creating, following, maintaining, and enforcing IT policies and procedures, maintaining their skills to keep pace with changes in industry. Essential Job Functions:
- Infrastructure Maintenance: Deploy, configure, and maintain a variety of Operating Systems and Software applications including Windows Servers and Lunix, to ensure maximum uptime and optimal performance.
- Cloud and Hybrid Management: Maintain basic AWS infrastructure components (EC2 instances, S3 storage, Security Groups, IAM permissions) and manage hybrid cloud connectivity.
- SaaS Administration: Administer the Microsoft 365 environment, overseeing license, Exchange online, SharePoint, Teams, and basic security and compliance settings.
- Identity & Access Management: Administer Active Directory, GPO, User accounts, permission, and access control.
- Operational Application Support: Support, patch and troubleshoot business applications across diverse environments, Perform security patches and updates during the specific maintenance time window.
- Maintain Core Network service including DNS, DHCP, TCP/IP configurations.
- Develop and administers disaster recovery plans including local and cloud backup solutions.
- Work with the user community to provide technical solutions to business problems.
- Act as an escalation point for helpdesk technicians to resolve complex hardware, software, and connectivity issues.
- Develops and maintains a change control process to manage project scope and complexity and to facilitate prioritization of development activities.
- Tracks and reports projects progress by establishing well-defined milestones, reviewing estimates, and providing status reports to senior staff.
- Works closely with technical lead to develop software that will help meet the functional requirements as well as usability standards.
- Provide R&D related to emerging technologies.
- Performs other duties as assigned.
- Lends expertise to other job areas as required.
- 3+ years of related experience in systems administration covering Windows, Linux, and cloud or hybrid-cloud environments
- Participate in On-call rotation for critical system support after hours
- Participating in Monthly maintenance
- Microsoft Professional level and/or AWS Practitioner level certification preferred
- Bachelor’s degree in computer science, Information Technology, or a related technical field, or equivalent hands-on experience
- Advanced experience with Microsoft Windows and Linux servers
- Basic knowledge and hands-on experience administering AWS infrastructure and/or Microsoft 365 suites
- Solid understanding of TCP/IP, basic LAN/WAN concepts, and core protocols (DNS, DHCP)
- Hands-on experience with Active Directory and Entra ID (Azure AD) identity and access management
- Advanced networking and security analysis skills
- Experience with Cisco routing, switching, and security products
- Excellent communication (both written and verbal) and interpersonal skills
- Experience with Cloud infrastructure on AWS Cloud and Microsoft 365
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$78k - $110k
...System Administrator Location: Fort Belvoir, VA Security Clearance: Active Secret Security Clearance Position Overview Nationwide IT Services (NIS) is seeking an experienced System Administrator to support a Department of Defense customer at Fort Belvoir...SuggestedFull time$90.3k - $189.6k
Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity CACI...SuggestedFull timeContract workWork experience placementLocal areaFlexible hours- The System Administrator will be responsible for: * Maintaining required mandatory certifications as necessary to support assignment as a privileged user and sustain DoD IA training and certification requirements IAW DoD 8570.1M. * Administering SharePoint Online...SuggestedFull time
$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- ...requirements and track completion through the automated tracking system. Create user accounts. Manage network email services. Perform... ...the NRO enterprise (COMM). Qualifications 5 years of system administration experience or related technical IT experience. Experience with...SuggestedWork at office
- ...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 in...
$61.9k - $141k
...System Administrator, Senior We are seeking an experienced Senior System Administrator to join our IT team. This role is responsible for maintaining, optimizing, and securing both on‑premise and cloud infrastructure. The successful candidate will demonstrate strong technical...Contract workWork at officeLocal areaRemote work- ...Title: Systems Administrator Company: Heven AeroTech Location: Winchester, Virginia FLSA: Exempt About Our Company: At Heven AeroTech (Heven), we don’t just believe in the power of people—we build our success on it. As a recognized leader in hydrogen‑powered drones, we...Temporary workWork at office
- ...Location: 811 Commerce Road, Staunton, VA 24401 Duration: 04+ Months Job ID: 790901 Position: System Administrator 4 Client: VDOT Required experience as a Systems Administrator, creativity and multi‑tasking to independently and collaboratively achieve department service...
- ...(NETCOM) and the Regional Network Enterprise Center for the National Capital Region (RNEC-NCR), we are currently seeking a Systems Administrator. Duties and Responsibilities Maintains and supports the integrity of the operating system environment and various computer systems...
$122k - $253k
...provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet... ...**This position is CONTINGENT upon contract award**The System Administrator (SysA) as part of the Platform Team delivers technical...Contract work- ...POSITION TITLE: Systems Administrator POSITION SUMMARY: IMRI is seeking an experienced Systems Administrator to support and maintain secure, high-performing IT environments across on‑premises and Azure cloud systems. This role focuses on managing servers, identity services...
- ...Job Description ACTIVE TS/SCI WITH FULL SCOPE POLY REQUIRED*** Our client has an immediate need for a System Administrator with a focus on Linux experience in the McLean, VA area. The on‑site system administrator shall support the day‑to‑day operations of the Sponsor’...Local areaImmediate startRemote work
$150k - $180k
...to other position specific requirements which may impact salary. Position Overview Amatriot is seeking an experienced Senior Systems Administrator to support the National Programs Intelligence Systems & Application Operating Unit. The SITE III ITS Task Order effort is...Full timeLocal areaWeekend work- ...Systems Administrator 3 Full Time Regular Hampton, VA, US EMCO is seeking Systems Administrator to support the Engineering Directorate at the NASA Langley Research Center in Hampton, Virginia. The role is responsible for performing IT systems support in engineering and...Full timeRemote work
- ...Position Title IAM Systems Administrator – CyberArk PAM Location Remote (AL, DC, DE, FL, GA, IL, IN, KY, MI, MD, MN, MO, NC, NJ, OH, PA, SC, TX, VA, WV) Clearance None Position Status Contract Pay Rate $42/hr - $45/hr on W2 Position Description We are seeking an experienced...Contract workFor contractorsRemote work
- ...established in 2006 to provide computing and consulting services for government and commercial entities. Our services improve Information System networking performance and compliance and protect electronic assets from loss and compromise. We welcome your application to...Local areaImmediate start
- ...support, and troubleshoot desktop and network hardware, operating systems, and software issues Serve as the ISSM and the primary... ...Microsoft Azure accounts and services Perform basic network administration tasks such as management of servers, routers, WiFi hardware,...Work at office
- ...Glint Tech Solutions is hiring for an urgent Systems Administrator role with a leading federal defense contractor. This position supports mission‑critical infrastructure in a secure environment, offering visibility, growth, and the chance to make a real impact. If you...For contractors
- ...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
- ...lead a team of 15 technical personnel ranging from desktop to database administrators. Essential Functions of the Job Organize and directs the configuration and operation of information management systems Provide the day-to-day system administration to include system and...Contract workTemporary workFor contractorsWork at officeImmediate startFlexible hoursWeekend workAfternoon shift
- ...Overview Employment Type: Full Time Department: Legal/IT We are seeking a Relativity Sr. Systems Administrator to join our team! You will handle a variety of projects to support and improve the organization’s network systems. CGS brings motivated, highly skilled, and creative...Full timeWork at officeFlexible hours
- ...provides technically advanced full-spectrum cyber, data operations, systems integration, and intelligence mission support services to meet... ..., defense, civil, and commercial markets. Job Title: System Administrator Location: Sterling, VA Clearance: TS/SCI Poly This position is...Contract work
- ...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
- ...Systems Administrator Job Locations: US-VA-Quantico Job ID: 2025-8302 Overview Abacus Technology is seeking a Systems Administrator to provide technical support for the US Air Force Office of Special Investigations (AFOSI) in Quantico. This is a full-time position. Responsibilities...Full timeWork at office
- ...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
- ...and delivered by operating with a product mindset, prioritizing speed, ownership, and execution over bureaucracy. Title: SME Systems Administrator Location: Lorton, VA (22079) Citizenship: U.S. Citizen (required for access to DHS IT systems) Clearance: Must be able to...Full timeLocal areaRemote workFlexible hours2 days per week
- ...Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are known for continuous innovation for our government customers, in both...Remote work
$104k - $124k
Overview System Adminisrator Springfield, VA Active TS (SCI eligibility) and eligibility to obtain a CI poly At Bcore, our strength... ...our nation’s cyber interests? Join our growing team as a System Administrator supporting the NGA customer mission. Responsibilities What...Work experience placementRemote workFlexible hoursWeekend work- ...Clearance with the ability to obtain a CI Poly****. What Impact You’ll Have We are seeking an IT Engineer with Microsoft Enterprise Systems Administrator Advisor experience to join our team in support of a Federal Intelligence Agency contract. In addition to receiving a...Contract workTemporary workRemote work
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