3,290 Results for

Systems Administrator Jobs in Ellicott City, MD

Jobs

Senior Cloud Systems Administrator Credence

McLean, VA

$145,000–$160,000 / year
Quick Apply

This role requires a professional who is equally comfortable managing Windows-based infrastructure, supporting Linux systems, and implementing modern DevOps practices to improve system reliability, scalability, and operational efficiency. Credence has an immediate openiing for a highly skilled Senior Cloud Systems Administrator to support the Enterprise Sourcing, Medical and Contingency (ESMC) Portfolio Hosting Support Contract.

5 days ago

Systems Administrator Credence

McLean, VA

$110,000–$140,000 / year
Quick Apply

Success in this role requires strong Microsoft endpoint and identity administration experience, hands-on vulnerability remediation work, scripting ability in PowerShell or Python, and the judgment to resolve escalated issues independently while documenting what was done. • Certifications such as Microsoft AZ-500, AWS Certified Security Specialty, AWS Certified Solutions Architect Associate, CompTIA Security+, CCNA, CISSP, AWS Security Specialty or similar.

9 days ago

Junior IT Administrator (IAM) Mitchell Martin

Merrifield, VA

$59–$69 / hour
Quick Apply

By applying for this job, you agree to receive AI-generated calls, text messages, and/or emails from Mitchell Martin Inc and its affiliates and contracted partners at various frequency through traditional and automated methods. Microsoft Entra | Active Directory | Lightweight Directory Services | Federation Services | IAM Technologies.

1 day ago

Network Administrator Engineer Mitchell Martin

Merrifield, VA

$72–$82 / hour
Quick Apply

By applying for this job, you agree to receive AI-generated calls, text messages, and/or emails from Mitchell Martin Inc and its affiliates and contracted partners at various frequency through traditional and automated methods. Join our team as a Network Administrator Engineer in a hybrid setting, where you will be responsible for managing and maintaining network infrastructure.

1 day ago

Contracts Administrator CFS

Reston, VA

$70,000–$75,000 / year

Partner with procurement, vendor management, and operations teams to ensure data accuracy. You'll help ensure critical vendor and contract information is accurate, organized, and ready for use in new business applications.

Today

Dialysis Facility Administrator U.S. Renal Care

Bowie, MD

Continuously monitor to ensure that a safe and sanitary physical environment is maintained throughout the facility; that all equipment is maintained and functions properly; and that adequate and appropriate inventory levels of all supplies are available and used correctly. STAFF DEVELOPMENT/ RETENTION Ensure all staff meet required qualifications for position held and perform duties within limitations established by and in accordance with company policy/procedures, health care professionals practice acts, applicable state and federal laws and regulations.

30+ days ago

Network Security Engineer Credence

McLean, VA

$130,000–$155,000 / year
Quick Apply

Support audit readiness and compliance for CMMC Level 2 and SOC 2, including maintaining network-layer controls in the System Security Plan (SSP), providing firewall and network evidence for assessments, and contributing to ISSO functions as needed. Experience with network monitoring and management platforms such as PRTG Network Monitor, network documentation tools such as NetBox, and network automation and configuration management tools such as Ansible.

1 day ago

ServiceNow Developer Credence

McLean, VA

$141,000–$185,000 / year
Quick Apply

This role partners with stakeholders, system administrators, and cross-functional teams to deliver scalable applications, workflows, and integrations while supporting platform modernization and process automation. Design, develop, customize, and deploy ServiceNow applications, modules, workflows, forms, and user interfaces to support business and operational requirements.

4 days ago

Systems Administrator Amentum

Hanover, Maryland

$140,000–$190,000 / year

The Windows Systems Administrator will be involved in the testing, preparation and deployment of Active Directory GPO’s and RBAC as well as automated server and workstation imaging and patching utilizing Windows MCM. responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

30+ days ago

Sr. Windows Systems Administrator Astrion

Columbia, Maryland

$145,000–$165,000 / year

Astrion has an exciting opportunity for a highly experienced Senior Windows Administrator to build, secure, and sustain the Windows Server estate, the Windows 11 workstation fleet, and the Active Directory and Windows network services that run across three or more isolated classified networks supporting Department of Defense/Department of War (DoD/DoW) environments in Columbia, MD. The ideal candidate brings deep Windows Server and Active Directory expertise, extensive experience operating inside closed and air-gapped classified enclaves, and a proven record of building and maintaining systems in compliance with Risk Management Framework (RMF) , DoD STIG , and Comply-to-Connect (C2C) requirements.

21 days ago

Sr. Windows Systems Administrator TS/SCI Poly Leidos Holdings Inc

Annapolis Junction, MD

$116,350–$210,325 / year

This role also includes supporting server, router, and firewall configuration, as well as performing security management and application performance optimization activities in an environment made up of VMware server hosts, Windows and Linux guest servers, and Virtual Desktop Infrastructure (VDI). Managing Information Assurance Vulnerability Alerts (IAVAs) and system security scanning in accordance with applicable System Security Plans, ensuring vulnerabilities are identified and remediated quickly and accurately.

30+ days ago

Windows Systems Administrator - TS/SCI w/Polygraph General Dynamics Information Technology

McLean, Virginia

Demonstrated experience with Windows systems engineering and administration, including MSSQL databases, Active Directory Certificate Services (ADCS), VM clusters, Hyper-V, Data Protection Manager, and PowerShell scripting. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

5 days ago

Linux/Windows Systems Administrator - Secret Clearance PROLIM Global Corporation

Maryland, MD

Maintain smooth operation of all computer infrastructure in a multi-user computer system environment, including coordination of efforts with systems, software, and electrical design engineers, Information Systems Security Officers, PC desktop technicians, end users, network engineers, program/project managers, and IT management. Current DoD Secret security clearance (at a minimum), to include a closed investigation date completed within the last 6 years, or must be enrolled in the DoD Continuous Evaluation (CE) Program, in order to be considered; the required security clearance must be maintained as a condition of continued employment.

6 days ago

Sr. Windows Systems Administrator TS/SCI Poly Leidos

Annapolis Junction, Maryland

This role also includes supporting server, router, and firewall configuration, as well as performing security management and application performance optimization activities in an environment made up of VMware server hosts, Windows and Linux guest servers, and Virtual Desktop Infrastructure (VDI). • Managing Information Assurance Vulnerability Alerts (IAVAs) and system security scanning in accordance with applicable System Security Plans, ensuring vulnerabilities are identified and remediated quickly and accurately.

25 days ago

Windows Systems Administrator (Journeyman) Active Secret Peraton

Beltsville, Maryland

$112,000–$179,000 / year
Full time

Must hold (or obtain prior to start) at least one approved certification, maintained as a condition of employment: CASP+ CE, CCNA Cyber Ops, CCNA‑Security, CCNP Security, CEH, CFR, CISA, CISSP (or Associate), Cloud+, CySA+, GCED, GCIA, GCIH, GICSP, SCYBER, VCA‑DCV, PPDA, Agile IC, or SNOW App Dev. Experience with enterprise technologies such as Windows Server, Active Directory, virtualization platforms (e.g., Nutanix), and monitoring tools (e.g., Splunk, SolarWinds), along with basic familiarity with Linux operating systems given the primarily Linux-based environment.

25 days ago

Windows Systems Administrator The Josef Group

Columbia, Maryland

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 Administrator. Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.

30+ days ago

Windows Systems Administrator - TS/SCI w/Polygraph GD Information Technology

McLean, Virginia

5 days ago

Sr. Windows Systems Administrator Axient LLC

Columbia, MD

$145,000–$165,000 / year

Astrion has an exciting opportunity for a highly experienced Senior Windows Administrator to build, secure, and sustain the Windows Server estate, the Windows 11 workstation fleet, and the Active Directory and Windows network services that run across three or more isolated classified networks supporting Department of Defense/Department of War (DoD/DoW) environments in Columbia, MD. The ideal candidate brings deep Windows Server and Active Directory expertise, extensive experience operating inside closed and air-gapped classified enclaves, and a proven record of building and maintaining systems in compliance with Risk Management Framework (RMF), DoD STIG, and Comply-to-Connect (C2C) requirements.

30+ days ago

Senior Windows Systems Administrator NIH-NCBI

Bethesda, MD

The ideal candidate will possess deep technical proficiency across the Microsoft server ecosystem, including Active Directory, Entra ID, ADFS, IIS, SQL Server, Hyper-V, and MECM, while bringing strong hands-on administration experience in multi-cloud environments spanning Amazon Web Services (AWS) and Google Cloud Platform (GCP). In this role, you will maintain our primary Microsoft environment, plan unified infrastructure deployment strategies via Microsoft Configuration Manager (MECM/SCCM), and serve as an expert-level technical resource providing backup and primary support for complex Active Directory (AD DS) duties.

30+ days ago

See More Jobs

Browse All Systems Administrator Locations

Browse Jobs Near Ellicott City, MD

Get noticed by top employers!

Upload your resume to let employers know you're open to Systems Administrator job opportunities. Plus, receive relevant job recommendations in your inbox.

Create A Free Account

Systems Administrator Jobs in Ellicott City, MD

Senior Cloud Systems Administrator Credence

Systems Administrator Credence

Junior IT Administrator (IAM) Mitchell Martin

Network Administrator Engineer Mitchell Martin

Contracts Administrator CFS

Dialysis Facility Administrator U.S. Renal Care

Network Security Engineer Credence

ServiceNow Developer Credence

Systems Administrator Amentum

Sr. Windows Systems Administrator Astrion

Sr. Windows Systems Administrator TS/SCI Poly Leidos Holdings Inc

Windows Systems Administrator - TS/SCI w/Polygraph General Dynamics Information Technology

Linux/Windows Systems Administrator - Secret Clearance PROLIM Global Corporation

Sr. Windows Systems Administrator TS/SCI Poly Leidos

Windows Systems Administrator (Journeyman) Active Secret Peraton

Windows Systems Administrator The Josef Group

Windows Systems Administrator - TS/SCI w/Polygraph GD Information Technology

Sr. Windows Systems Administrator Axient LLC

Senior Windows Systems Administrator NIH-NCBI

Similar Job Searches

See More Jobs