linux / unix systems administrator Jobs in denver, co

1 - 20 of 358 Jobs

Linux / Unix Systems AdministratorJob Title - Linux / Unix Systems Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Linux / Unix Systems Administrator LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Linux / Unix Systems Administrator to join our team and ensure the stability, security, and efficiency of our systems infrastructure. In this role, you will be responsible for managing, monitoring, and maintaining Linux and Unix servers, troubleshooting system issues, and implementing soluti

Linux / UNIX Systems Administrator (PeopleSoft / Oracle)Job Title - Linux / UNIX Systems Administrator (PeopleSoft / Oracle)

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Linux / UNIX Systems Administrator (PeopleSoft / Oracle) LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and motivated Linux / UNIX Systems Administrator (PeopleSoft / Oracle) to join our team and support the administration and optimization of our critical systems. In this role, you will manage and maintain Linux/UNIX environments, ensuring the stability, security, and performance of PeopleSoft

Senior Linux Systems Administrator - 10k Sign on BonusJob Title - Senior Linux Systems Administrator - 10k Sign on Bonus

LeidosCompany Name - 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

Unix / Linux System Administrator with DevOpsJob Title - Unix / Linux System Administrator with DevOps

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Unix / Linux System Administrator with DevOps LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented and motivated **Unix / Linux System Administrator with DevOps** expertise to join our team and manage the infrastructure that supports our applications and services. In this role, you will be responsible for maintaining, automating, and optimizing our Unix and Linux-based systems while integrating Dev

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

Lockheed Martin CorporationCompany Name - 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.

Linux System AdministratorJob Title - Linux System Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Linux System Administrator LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled Linux Systems Administrator to join our team and play a vital role in managing and maintaining our Linux-based infrastructure. In this position, you will be responsible for deploying, configuring, monitoring, and troubleshooting Linux servers to ensure optimal performance, reliability, and security. You

Systems Administrator IIIJob Title - Systems Administrator III

Judge Group, Inc.Company Name - Judge Group, Inc.

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Englewood, Colorado, USA

Contract

Location: Englewood, CO Salary: $65.00 USD Hourly - $70.00 USD Hourly Description: Job Title: Systems Administrator Location: Englewood, CO 80112 Contract: 6+ Months About the Role We're looking for an experienced Infrastructure Systems Engineer to manage and optimize our on-premise and cloud-based IT infrastructure. You'll play a key role in maintaining system reliability, supporting AI platforms, and ensuring compliance with security standards like NIST 800-171. Responsibilities: Manage

Unix/Linux AdministratorJob Title - Unix/Linux Administrator

Parsons Services CompanyCompany Name - Parsons Services Company

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Remote

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: This job opening is for an experienced Unix/Linux Administrator to provide systems a

Linux and Windows Systems Administrator | REMOTE (ship required)Job Title - Linux and Windows Systems Administrator | REMOTE (ship required)

Oracle CorporationCompany Name - 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

System/Network Administrator: Entry-Level (Unix/Linux/AIX)Job Title - System/Network Administrator: Entry-Level (Unix/Linux/AIX)

Jack Henry & AssociatesCompany Name - Jack Henry & Associates

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Remote

Full-time

At Jack Henry, we deliver technology solutions that are digitally transforming and empowering community banks and credit unions to provide enhanced and streamlined user experiences to their customers and members. Our best-in-class products are just the start as we lay the groundwork for the future of digital banking and payments. We hope you'll join us. We can't do it without you. We have an exciting opportunity for an Entry-Level System Network Administrator who will be responsible for hostin

Operating Systems Specialist- Unix, Windows, & Tomcat (Night/Graveyard Shift)Job Title - Operating Systems Specialist- Unix, Windows, & Tomcat (Night/Graveyard Shift)

Ignitec Inc.Company Name - Ignitec Inc.

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Remote

Contract

Operating Systems Specialist This is a Full-Time (Contract) Remote position supporting United States Postal. Full benefits, PTO, and paid holidays is inclusive to this position. Number of Available Positions: 17 Contract Term: 10/1/2025- 9/30/2026 (With possible extensions) Salary Target: $80K-$125K/YR (Salary is flexible based on the relevant years of professional experience and background related to the position) Requirements: Ability to work Night/Graveyard Shift; Prior experience in supporti

Senior Linux Systems Administrator - REMOTEJob Title - Senior Linux Systems Administrator - REMOTE

First American Financial CorporationCompany Name - First American Financial Corporation

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Remote or Santa Ana, California, USA

Full-time

Who We Are Join a team that puts its People First! Since 1889, First American (NYSE: FAF) has held an unwavering belief in its people. They are passionate about what they do, and we are equally passionate about fostering an environment where all feel welcome, supported, and empowered to be innovative and reach their full potential. Our inclusive, people-first culture has earned our company numerous accolades, including being named to the Fortune 100 Best Companies to Work For list for ten conse

DevOps Systems AdministratorJob Title - DevOps Systems Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

DevOps Systems Administrator LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly motivated and skilled **DevOps Systems Administrator** to join our team and play a crucial role in streamlining our development and operations processes. In this role, you will manage and maintain our infrastructure, ensuring smooth and efficient deployment pipelines, automating workflows, and enhancing system reliabili

Systems and Network AdministratorJob Title - Systems and Network Administrator

Alaska Teachers & PersonnelCompany Name - 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

Systems Administrator IIIJob Title - Systems Administrator III

DP Professionals IncCompany Name - DP Professionals Inc

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Englewood, Colorado, USA

Contract

DPP is seeking a Systems Administrator for an opportunity in Englewood, Colorado. Work arrangement: Hybrid or Onsite in Colorado W2 position; 6 months Position summary: Manage and maintain servers and related infrastructure components. Manage and maintain AI systems, including hardware and software components. Monitor system performance and ensure optimal operation of IT infrastructure. Perform system upgrades, patches, and routine maintenance to ensure security and reliability in Microsoft, Re

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

Oracle Linux AdministratorJob Title - Oracle Linux Administrator

NuLeapCompany Name - NuLeap

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Remote or US

Contract, Third Party

Job Summary Oracle Linux Administrator - Lead enterprise patch management and CVE remediation for Oracle Linux 7.9 and related systems. - Serve as primary escalation point for Oracle Linux support, handling Tier 1 & 2 issues and Oracle support cases. - Apply security patches, OS bug fixes, and ensure security compliance across environments. - Provide 24x7 production support for high-severity incidents and outages. - Perform root cause analysis and document all patching, changes, and updates.

Linux System Administrator, SeniorJob Title - Linux System Administrator, Senior

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is hiring a Windows and Linux System Administrator (Senior) to support Veterans Affairs operational needs . The role requires AWS, Windows, and Linux administration experience, with strong database management skills, to maintain infrastructure and ensure system security and performance. This position is fully remote within the United States. Responsibilities Plan the transition of development and/or production environments to new technologies. Ensure data integrity and facilit

Windows / Linux Systems Administrator - REMOTE (ship required)Job Title - Windows / Linux Systems Administrator - REMOTE (ship required)

Oracle CorporationCompany Name - Oracle Corporation

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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