Systems Administrator Senior
RadNet
Washington, District Of Columbia, United States Job Description Everforth ECS Federal is seeking a Senior Systems Administrator to support a mission‑focused federal IT program in Washington DC. This position is contingent upon contract award. Join Everforth ECS Federal to keep secure mission systems running reliably for national security and law enforcement users. You will work with a collaborative infrastructure team supporting an expanding federal environment focused on reliability, security, service continuity, and operational excellence. The Systems Administrator will administer, patch, configure, monitor, and troubleshoot enterprise applications and systems in secure federal environments. This role supports reliable system operations, vulnerability remediation, access management, incident response, change management, and service continuity for mission‑critical federal IT systems. The Systems Administrator will maintain systems, apply patches, manage user and system access, troubleshoot incidents, support backups, document standard operating procedures, remediate vulnerabilities, support change management activities, and contribute to operational reporting. This position will work closely with systems engineers, network engineers, cybersecurity teams, service desk personnel, application teams, and program leadership to ensure secure and reliable day‑to‑day operations. This role requires a hands‑on technical professional with experience administering enterprise systems, supporting secure configurations, resolving operational issues, maintaining documentation, and working in structured IT environments. The ideal candidate will bring strong troubleshooting skills, attention to detail, customer awareness, and the ability to support mission operations in a classified or sensitive federal IT environment. Required Skills Minimum 7 years system administration experience Enterprise application or infrastructure support experience Understanding of patching, monitoring, troubleshooting, and secure operations. Desired Skills Security+, Microsoft, Linux, VMware, ServiceNow, cloud, endpoint management, classified environment, or vulnerability management experience. ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis of any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law. #J-18808-Ljbffr RadNet
- ...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...SeniorFull timeContract workFor contractorsWork 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...SeniorFull timeContract workFor contractorsWork at office
- ...faster, better‑informed decisions using trusted data at scale. Leidos Digital Modernization sector is seeking an experienced Senior System Administrator to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD...Senior
- ...Senior Systems Administrator Location: Fort Lesley J. McNair, 300 5th Avenue, Washington, DC 20319 (Hybrid) Duration: Long term Certification: CompTIA Security+ CE and Computing certification Clearance: Active Secret or above Summary We are seeking an...Senior
$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 officeFlexible hours- ...Modern Technology Solutions, Inc. (MTSI) is seeking a highly-skilled Senior Systems Administrator to join our team. This individual will be responsible for developing, maintaining, and securing enterprise systems, applications, and infrastructure. The role will lead efforts...SeniorWork at office
- ...Senior Systems Administrator Everforth ECS Federal is seeking a Senior Systems Administrator to support a mission-focused federal IT program in Washington DC. Please Note: This position is contingent upon contract award. Join Everforth ECS Federal to keep secure...SeniorContract work
$130k - $175k
...About You: You are a Senior-Level Systems Administrator with experience designing, implementing, securing, and supporting enterprise IT infrastructure in commercial, government, and regulated environments. You possess expertise across Microsoft 365, Active Directory,...SeniorFor contractors- ...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...SeniorFull timeWork at officeFlexible hours
$70k
...sustaining, operating, and improving essential government systems and services, with proven operational excellence, and a commitment... ...without dual citizenship. This role is remote. The Senior System Administrator provides senior‑level IT operations and ServiceNow...SeniorContract workRemote work- CGI Technologies and Solutions, Inc. is seeking a Senior System Administrator in Washington, D.C. to manage system configurations, security settings, and perform maintenance activities. The candidate will troubleshoot issues, monitor systems for performance, and support...Senior
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- Syneren Technologies Corporation is looking to hire a Sr. Azure Systems Administrator in Alexandria, Virginia. This pivotal role requires managing Azure cloud and On-Prem infrastructure to ensure system security and resilience. Candidates must possess extensive experience...Senior
- The RAND Corporation is seeking a Classified Systems Administrator III based in Washington, D.C. This role involves managing classified servers and networks, ensuring the security and compliance of systems. Applicants should possess strong technical skills, be able to work...Senior
$80.52k - $161k
...Specialist Job Type Experienced Seniority Level Mid-Senior Level Currency... ...Overview Xerox is seeking a highly skilled Senior System Administrator to support the United States Air Force (USAF) Managed Print...SeniorFull timeTemporary workInterim roleWork at officeLocal areaMonday to Friday- General Dynamics Information Technology is looking for an Active Directory Systems Administrator in Washington, DC. In this role, you will manage and secure enterprise directory services, ensuring authentication, authorization, and identity management across complex environments...Senior
- ...Senior Systems Administrator Employment Type: Full Time, Senior-level 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...SeniorFull timeContract workFor contractorsWork at officeRemote workFlexible hours
- Integrated Computer Solutions, Inc. is seeking a Senior System Administrator in Arlington, Virginia. This position involves providing Tier I/II/III support within classified environments, ensuring operational performance and security of critical systems. The ideal candidate...Senior
$88k - $130.9k
RAND Corporation in Washington D.C. is seeking a Classified Systems Administrator, III, responsible for maintaining classified servers and network infrastructures. The role ensures operational effectiveness and compliance with federal standards while collaborating with...SeniorFull timeWork at office$100k - $115k
...technical planning, testing, and execution of complex system upgrades, including operating systems,... ...advisories) and ensure timely remediation. Provide senior‑level technical support and guidance to system administrators, serving as an escalation point for complex patching...Senior- Position: System Administrator (Mid to Senior Level) Location: Suitland, MD Required Clearance: TS/SCI Salary: Negotiable WILLCOR is hiring a Systems Administrator to work at ONI in Suitland Maryland. Primary Responsibilities You will be responsible for recommending...SeniorWork experience placement
- ...expertise in Application deployment, testing, tuning and security Experience also shall include capability to work on various operating systems and additional programming languages Has experience in at least two projects in a large organization responsible for administering...Senior
- Leidos is seeking a skilled Senior System Administrator in Alexandria, VA, to support enterprise data and analytics programs across the Department of War. You will work with government partners to translate operational requirements into scalable solutions while enhancing...Senior
- ...maintain Windows and Linux servers, databases, and mission‑critical systems. Manage virtualization environments (VMware) and cloud... ...Experience: Minimum 5 years of experience as a Windows Systems Administrator. Strong knowledge of AWS infrastructure and security best...Senior
- Job Description We are seeking a highly motivated and skilled Cross Domain Solutions (CDS) Systems Administrator with 3-5 years of experience to join our Federal Systems Team as a key contributor to our high‑performing Classified IT operations. This is an on‑site role supporting...SeniorFull timeTemporary workPart time
- STI-TEC is seeking a Senior Systems Administrator to oversee database and systems administration across JDEIS applications in Washington, D.C. The role ensures stability and security for the Joint Doctrine Development Community's platforms. Candidates must possess a Bachelor...Senior
$100k - $110k
A private university is seeking a Database Administrator to manage systems and procedures ensuring security, integrity, and performance of databases and applications. The role involves administering Oracle and SQL Server databases, maintaining ERP systems such as PeopleSoft...Senior$120k - $135k
Job Description Everforth ECS is seeking a cleared Senior Systems Administrator (Top Secret Cleared) for our Washington, DC office. The role involves secure system administration, endpoint management, user support, patching, monitoring, documentation, and operational sustainment...SeniorWork at officeLocal area- Join to apply for the Senior Systems Administrator role at Tecolote Research Overview We are seeking a skilled and motivated Systems Administrator to join our IT team. The ideal candidate will be responsible for managing, maintaining, and optimizing our enterprise systems...SeniorFull timeTemporary workWork at office
$500 per month
...services to its customers in the following areas: Business Systems Services; Business Intelligence; Data Analytics and... ...Enterprise Horizon Consulting Group is seeking a highly skilled Senior Okta Systems Administrator to ensure the stable, secure, and optimized operation of...SeniorContract workTemporary workLocal areaRemote work
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