Windows Systems Administrator Jobs in California

1 - 20 of 39 Jobs

Sr Windows Systems AdministratorJob Title - Sr Windows Systems Administrator

RaytheonCompany Name - Raytheon

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El Segundo, California, USA

Full-time

Date Posted: 2025-07-02 Country: United States of America Location: CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher

Sr Windows Systems AdministratorJob Title - Sr Windows Systems Administrator

RTX CorporationCompany Name - RTX Corporation

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El Segundo, California, USA

Full-time

Senior Systems Administrator (Linux/Windows)Job Title - Senior Systems Administrator (Linux/Windows)

Ledgent TechnologyCompany Name - Ledgent Technology

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Fremont, California, USA

Full-time

We are seeking a highly skilled Senior System Administrator to join our client's enterprise IT team, which is onsite in Fremont, CA. We are unable to consider 3rd party candidates. In this role, you will be responsible for maintaining, securing, and optimizing mission-critical systems and infrastructure across a complex, multi-site environment. You will take initiatives to improve performance, reliability, scalability, and security, including cloud services, servers, storage, virtualization, s

Senior Systems Administrator (Linux/Windows)Job Title - Senior Systems Administrator (Linux/Windows)

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is in Washington, DC and will be a hybrid remote with periodic onsite customer work activities. Must be willing to work nights, have an active Sec

Systems Administrator - Linux/WindowsJob Title - Systems Administrator - Linux/Windows

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview Provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities. Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position Description: In this role you will: Pr

Systems Administrator - Linux/WindowsJob Title - Systems Administrator - Linux/Windows

GovCIOCompany Name - GovCIO

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Remote

Full-time

Onsite Hybrid Cloud Systems Engineer, Azure, SQL Server, Windows, Active DirectoryJob Title - Onsite Hybrid Cloud Systems Engineer, Azure, SQL Server, Windows, Active Directory

Intelliswift Software IncCompany Name - Intelliswift Software Inc

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Los Angeles, California, USA

Contract

Hybrid Cloud Systems Engineer, Azure, SQL Server, Windows, Active Directory for a contract position. This position can be hybrid onsite in the Los Angeles or San Francisco area. No 3rd party C2C, H1B. What you will be doing: Support planning, design, implementation, operation, and optimization of hybrid cloud infrastructure Azure, SQL Server, WindowsEvaluate environment and recommend architectural improvementsImplement solutions IaaS, PaaSEmbed Financial Operations best practicesSupport and Data

Senior Windows System AdministratorJob Title - Senior Windows System Administrator

RTX CorporationCompany Name - RTX Corporation

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El Segundo, California, USA

Full-time

Date Posted: 2025-06-17 Country: United States of America Location: CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to

Information Systems Analyst (Windows)Job Title - Information Systems Analyst (Windows)

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Remote or Georgia, USA

Full-time

Job Description This position requires an active Secret clearance with the ability to obtain Top Secret clearance. Lockheed Martin Space Information Systems Analyst position will support military Space Programs. This position receives day-to-day operations guidance from program staff and will report to the LM IS SWFLANT IT OPS Manager. We are looking for a passionate and dedicated individual who is well-versed in Windows System Administration and has a strong understanding of network, server,

Windows AdministratorJob Title - Windows Administrator

eQuest SolutionsCompany Name - eQuest Solutions

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Los Angeles, California, USA

Full-time

Please note I have direct access to the Hiring Director on this position. This is an outstanding opportunity for a Sr. Systems Engineer / Windows Administrator to drive the growth and enhancement of the Azure environment from the ground up. We are a leading and growing hospitality company in our niche and are looking for a Sr. Systems Engineer / Windows Administrator. We are a publicly traded company that has been in business for 74+ years, realized $3.6B in revenue in 2024 (15 % increase over p

Sr. Windows Administrator/Test Lab Manager TS/SCI Poly SAN DIEGO, CAJob Title - Sr. Windows Administrator/Test Lab Manager TS/SCI Poly SAN DIEGO, CA

LeidosCompany Name - Leidos

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San Diego, California, USA

Full-time

Come join our exciting and fast-growing National Security Group! This position is located in San Diego, CA. *You must have an active TS/SCI Polygraph up front. No exceptions.* We are hiring a Senior Windows Administrator / Test Lab Manager to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a highly complex and fast-paced program. You will be responsible for performing daily system administration and O&M support activities in support of a comple

Windows and Azure System AdministratorJob Title - Windows and Azure System Administrator

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is hiring a highly skilled Windows and Azure System Administrator with experience in cloud environments for the Department of Veterans Affairs. The candidate will maintain the infrastructure, ensure optimal system performance, and uphold stringent security measures. This position is fully remote within the United States. Responsibilities Implement and optimize monitoring solutions to track system health, performance, and security. Conduct regular maintenance, updates, and patc

Windows Endpoint Applications AdministratorJob Title - Windows Endpoint Applications Administrator

Aerospace CorporationCompany Name - Aerospace Corporation

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El Segundo, California, USA

Full-time

The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of problem solvers,

Hybrid Systems Engineer, Sr (Windows / Linux) / Onsite: COJob Title - Hybrid Systems Engineer, Sr (Windows / Linux) / Onsite: CO

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Remote or Littleton, Colorado, USA

Full-time

Job Description Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees work with our partners around the world to bring the latest technology to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries. This Enterprise Operations (EO) position supports the Lockheed Marti

Sr. Windows Systems Engineer (need strong Active Directory experience)- 100% onsiteJob Title - Sr. Windows Systems Engineer (need strong Active Directory experience)- 100% onsite

CalanceCompany Name - Calance

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Irvine, California, USA

Full-time

Our client is looking for a seasoned Systems Engineer. The right candidate will have an in-depth knowledge of Microsoft Core Infrastructure Suite of products. Additionally, experience administering a highly available transactional environment that has PCI, HIPAA or other regulatory compliance his highly preferred. This position offers an opportunity to play a key role in a dynamic, fast paced, collaborative and highly productive team. You will assist our customer in its journey to mature it s in

Windows OS Query Developer-RemoteJob Title - Windows OS Query Developer-Remote

Reliable Software ResourcesCompany Name - Reliable Software Resources

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Remote

Contract, Third Party

Windows OS Query Developer Remote 6+ months contract Requirements: Need someone with user development or kernel experience; tracing events in Windows that will be put in a format for file integrity monitoring.Windows driver development experience: current active in-depth experience Windows OS Query is used - open sourced - needs to have familiarity with this.Python or go experience a requirementFamiliarity with Git, Gitlab, CICD methodologies

Windows VMWare SME with VCFJob Title - Windows VMWare SME with VCF

Alpha SiliconCompany Name - Alpha Silicon

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Full-time, Third Party, Contract

Title: Windows VMWare SME Location: Remote Terms: Contract Job Description Responsibilities: - Design & Configure VMWare Workspace One Tunnel & VMWare Tunnel Proxy. Design & Configure Per-App VPN & Per-App Tunnel (AirWatch App-Tunnel) for Mobile Applications. Design & Configure Network Traffic Rules on VMware Workspace One. Design & Configure Certificate Authentication for Mobile SSO. Design & Configure Tunnel Mode (Per-App vs Full Device Tunnel) in VMware Workspace One Design & Configure VMw

Sr. Windows Consultant-Remote - long term - ()Job Title - Sr. Windows Consultant-Remote - long term - ()

USG, Inc.Company Name - USG, Inc.

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Contract, Third Party

Role Name: Sr. Windows Consultant Location: US Remote Duration: 6+ Months Job description: Common Skills: PowerShell Scripting Knowledge/Proficiency Security Patching of on-premise Platforms Microsoft Office Suite of tools/features Understanding of Microsoft Licensing Proven background in Administration of targeted technologies Proven Troubleshooting skills Excellent Communication Skills Ability to document technical processes Ability to work with end users to resolve their issue in a timely

Senior Windows and VMware Architect - RemoteJob Title - Senior Windows and VMware Architect - Remote

PropelSys Technologies LLC.Company Name - PropelSys Technologies LLC.

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Texas, USA

Full-time, Contract, Third Party

Job Title: Senior Windows and VMware Engineer Location: Remote (CST and EST Time Zone Pref.) Resource Type: Contractor Job Title: Senior Windows and VMware Engineer (5B/6A) Experience Required: 10-15 years Job Summary: The Senior Windows and VMware Engineer is responsible for the implementation, administration, and support of enterprise-grade Microsoft Windows Server and VMware environments. This role plays a critical part in ensuring infrastructure stability, performance, and scalability

Windows Platforms EngineerJob Title - Windows Platforms Engineer

JDA TSGCompany Name - JDA TSG

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Remote

Full-time

JDA TSG has immediate opportunities for Windows Platforms Engineer to join our team working as Customer Engineers (CE s). Positions are full time salaried roles offering comprehensive benefits. A CE s time is dedicated to working with some of the largest, and most sophisticated companies in the world, usually F1000 companies. CE s work with and assist customers in building, deploying, operating, and optimizing complex enterprise environments. You will be responsible for customer satisfaction, de