Windows Administrator Jobs in Denver, CO

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Windows System Administrator (Onsite - TS/SCI Clearance Required)

RTX Corporation

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-28 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, Aurora, CO, 80011 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: TS/SCI with Polygraph RTX Corporation is an Aerospace and Defense company that provides advanced systems and services fo
Posted 4 days ago | Updated 3 hours ago

Systems Administrator (Windows / Linux) / Hybrid: Highlands Ranch, CO

Lockheed Martin Corporation

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Remote or Highlands Ranch, Colorado, USA

Full-time

Job Description Lockheed Martin's Enterprise Business & Digital Transformation (EBDT) organization 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 people works with partners around the world to bring proven performance 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.
Posted 24 days ago | Updated 3 hours ago

Windows Administrator

isolve technology inc

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Remote

Third Party, Contract

Role: Windows Administrator Location: Remote Client: USPS Duration: 12 months List of tasks to be performed: Provide a quality-controlled software release management system to all servers and end user workstations, including troubleshooting and problem resolution to ensure successful delivery of software releases Schedule and deploy operating system or operating system components, patches or service pack releases, new or modified anti-virus software, custom written internal and or Commercial Off
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Posted 1 day ago | Updated 1 day ago

Linux and Windows Systems Administrator | REMOTE (ship required)

Oracle Corporation

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Remote

Full-time

Job Description Building off our Cloud momentum, Oracle has formed a new organization - Oracle Health & Analytics. This team will focus on product development, operations and product strategy for Oracle Health, while building out a complete platform supporting modernized, automated healthcare. This is a net new line of business, constructed with an entrepreneurial spirit that promotes an energetic and creative environment. We are unencumbered and will need your contribution to make it a world c
Posted 6 days ago | Updated 4 hours ago

Windows / Linux Systems Administrator - REMOTE (ship required)

Oracle Corporation

•

Remote

Full-time

Job Description Building off our Cloud momentum, Oracle has formed a new organization - Oracle Health Applications & Infrastructure. This team will focus on product development and product strategy for Oracle Health, while building out a complete platform supporting modernized, automated healthcare. This is a net new line of business, constructed with an entrepreneurial spirit that promotes an energetic and creative environment. We are unencumbered and will need your contribution to make it a w
Posted 60+ days ago | Updated 3 hours ago

Windows Server Administrator

Seneca Resources, LLC

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Remote

Contract

The successful candidate will be able to perform complex functional activities in support of servers running the Windows server operating system for the Client. They will be expected to regularly exercise independent judgment, as well as high level of analytic skill, in solving complex technical problems for the Client in the Windows Server and Virtual ESX environment. This individual serves as the focal point for problem resolution by interacting with Client's employees and (multiple) equipmen
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Posted 1 day ago | Updated 1 day ago

Senior Systems Administrator (Linux/Windows)

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
Posted 27 days ago | Updated moments ago

Systems Administrator - Linux/Windows

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
Posted 60+ days ago | Updated moments ago

Service Desk Specialist

Aditi Consulting

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Lakewood, Colorado, USA

Contract

Payrate: $32.00 - $37.17/hr. Responsibilities: Escalation points for Junior and Mid-level desk side engineers. Ability to act independently in a customer environment, as well as the ability to engage engineers from multiple teams to troubleshoot issues. Troubleshoots complex issues that were unable to be remediated by junior and mid-level engineers. Updates status of queued service requests with the IT service management system. Certifications desirable but not required include A+, Net+, Secu
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Posted 11 days ago | Updated moments ago

Staff Systems Engineer - TS/SCI Required

Lockheed Martin Corporation

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Littleton, Colorado, USA

Full-time

Job Description Who We Are: At C2 Ground, we are a diverse group of programs unified in our mission to support various customers and capabilities within the Command and Control Domain. As a "Family of Programs" we deliver a wide range of hardware and software solutions that provide mission-critical capabilities to our customers. Our software products focus on key areas such as Tasking, Processing, Exploitation, and Dissemination (TPED), Communications, and Mission Planning Applications, while o
Posted 8 days ago | Updated 3 hours ago

Sr. System Admin (Windows and Linux) Only w2 candiadtes

Nasscomm, Inc.

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Remote

Contract

Operating System Specialist o Candidates with experience across multiple platforms specifically Unix, Windows, and Tomcat administration are preferred. o The client believes that historically they were siloed and specialized, but he believes for this request he does not need specialists in a particular tech but someone who has experience with all 3 technologies. Required Skills General knowledge of the skills listed below, with a named specialty in one or more skill areas: Unix/Linux server admi
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Posted 4 days ago | Updated 11 hours ago

ControlUP Architect , Citrix administrator

Refulgent Technologies Inc.

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Remote

Contract

Remote Work from anywhere within US. NO THIRD PARTIES 5+ years technical experience with Citrix administration, including XenServer 5+ years experience with Microsoft Windows Servers and Microsoft Windows Infrastructure (AD, DNS, DHCP, ADFS, WSUS, etc.) 5+ years experience Design and Architect experience Monitoring of VDI platform with various client tools (Netscaler, ControlUP) Citrix Administration Certification Bachelors degree in Computer Science or related field
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Posted 6 days ago

Google Cloud Platform Cloud Engineer/ Denver, Colorado (Remote)-12 Months Contract

Suncap Technology

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Remote or Denver, Colorado, USA

Contract

Local to CO Candidates only Title: Google Cloud Platform Cloud Engineer Location: Denver, Colorado (Remote) Duration: 12 Months Contract The Google Cloud Platform Cloud Engineer is responsible for implementing the designs and standards provided by the Cloud Architect and established by the Cloud Operations team as a whole and deploying application hosting environments using repeatable templates/tools/processes, with a primary focus on the Google Cloud Platform cloud platform within a DevOps stru
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Posted 49 days ago | Updated moments ago

Overnight Oracle EBS Database Administrator

Ignitec Inc.

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Remote

Contract

Overnight Oracle EBS Database Administrator This is a Full-Time Remote Position supporting the United State Postal Service (USPS). Full employee benefits, PTO, and paid holidays is inclusive to this position. Number of Available Positions: 17 Salary Target: $80K-$120K/YR (Salary is flexible based on the relevant years of professional experience and background related to the position) Contract Term: 10/1/2025- 9/30/2026 (With possible extensions) Requirements: Able to work Night/Graveyard Shift;
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Posted 1 day ago

Devops Engineer

Jobot

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Greenwood Village, Colorado, USA

Full-time

Bio-Manufacturing Company/Great work life balance This Jobot Job is hosted by: Heather Burnach Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $75,000 - $100,000 per year A bit about us: Are you passionate about making a real impact in the pharmaceutical industry? Do you thrive in a collaborative, innovative environment where your skills and ideas are valued? Look no further, we're not just another pharmaceutical company - we're pioneers in
Posted 2 days ago | Updated moments ago

Senior Linux Systems Administrator - 10k Sign on Bonus

Leidos

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Aurora, Colorado, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immed
Posted 18 days ago | Updated 4 hours ago

Systems Engineer- Virtualization

Visa Inc.

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Highlands Ranch, Colorado, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe
Posted 9 days ago | Updated 15 hours ago

Senior ATLO EGSE Integration Engineer

Lockheed Martin Corporation

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Littleton, Colorado, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready soluti
Posted 17 days ago | Updated 3 hours ago

IT Support Specialist - Senior

SAIC

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Lakewood, Colorado, USA

Full-time

Job ID: 2508012 Location: LAKEWOOD, CO, US Date Posted: 2025-07-29 Category: Information Technology Subcategory: Technical Svcs Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: No Description IT Support Specialist - Senior Provides Tier 2 and Tier 3 deskside end user support including imaging, deployment, asset management, Windows 10 with strong user interaction skills. Need t
Posted 6 days ago | Updated 1 hour ago

Systems and Network Administrator

Alaska Teachers & Personnel

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Castle Rock, Colorado, USA

Full-time

Position Type: Other Date Posted: 6/25/2025 Location: Administration Center-Technology & Info Systems Date Available: ASAP Closing Date: 08/14/2025 District: Fairbanks North Star Borough School DistrictAdditional Information: Show/Hide Job Summary: The Systems and Network Administrator plans, manages, and optimizes network and system operations, supporting the director and IT staff. Key responsibilities include configuring and maintaining network infrastructure, ensuring system secur
Posted 39 days ago | Updated 4 hours ago