Principal Linux Systems Administrator Jobs in Denver, CO

1 - 20 of 247 Jobs

Linux Systems AdministratorJob Title - Linux Systems Administrator

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Lakewood, Colorado, USA

Full-time

Job Number: R0216958 Linux Systems Administrator The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. We're looking for a systems administrator to help us maintain forensic systems and infrastructure. As a systems administrator on our project, you'll constantly look for ways to make our infrastructure better using the latest technology and the best implementation strategies. You'll provide your customers with insi

Linux Systems AdministratorJob Title - Linux Systems Administrator

Cornerstone DefenseCompany Name - Cornerstone Defense

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Aurora, Colorado, USA

Full-time

Location: Aurora, Colorado Type: Contract Job #3466 Linux Systems Administrator Aurora, CO Active TS/SCI w/ CI poly Compensation Range: $115,000 - $135,000 Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed

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

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

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

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

Lockheed MartinCompany Name - Lockheed Martin

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Littleton, Colorado, USA

Full-time

Job ID: 692395BR Date posted: Apr. 30, 2025 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 (

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

Sr Staff Systems Administrator Security and CompJob Title - Sr Staff Systems Administrator Security and Comp

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

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Arvada, Colorado, USA

Full-time

Location: Arvada, CO Salary: $65.00 USD Hourly - $78.00 USD Hourly Description: Our client is currently seeking a Sr Systems Administrator with deep expertise in Security & Compliance Hardening to support the implementation of CIS Benchmarks and CMMC Level 2 controls across AWS-hosted RHEL8, RHEL9, and Rocky9 environments. This role focuses on designing, building, and maintaining hardened AMIs to meet the stringent security and compliance requirements of government and defense workloads. T

Principal IT Systems EngineerJob Title - Principal IT Systems Engineer

Commonspirit HealthCompany Name - Commonspirit Health

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Remote or Englewood, Colorado, USA

Full-time

Overview Inspired by faith. Driven by innovation. Powered by humankindness. CommonSpirit Health is building a healthier future for all through its integrated health services. As one of the nation's largest nonprofit Catholic healthcare organizations, CommonSpirit Health delivers more than 20 million patient encounters annually through more than 2,300 clinics, care sites and 137 hospital-based locations, in addition to its home-based services and virtual care offerings. CommonSpirit has more tha

IT Systems Administrator IIJob Title - IT Systems Administrator II

SNI TechnologyCompany Name - SNI Technology

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Thornton, Colorado, USA

Full-time

Job Details SNI Technology's top client located in Thornton, CO is immediately seeking to hire a talented IT Systems Administrator II for an exciting full-time, permanent position. Please note this position is primarily an onsite position (i.e., 4 days in-office per week) with the ability to work remotely (i.e., 1 day work from home per week). Fully remote work is not available for this position. IT SYSTEMS ADMINSTRATOR II SNI Technology's client is looking for an IT Systems Administrator II to

IT Network/Systems Administrator IJob Title - IT Network/Systems Administrator I

SNI TechnologyCompany Name - SNI Technology

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Thornton, Colorado, USA

Full-time

Job Details SNI Technology's top client located in Thornton, CO is immediately seeking to hire a talented IT Network/Systems Administrator I for an exciting full-time, permanent position. Please note this position is primarily an onsite position (i.e., 4 days in-office per week) with the ability to work remotely (i.e., 1 day work from home per week). Fully remote work is not available for this position. IT NETWORK/SYSTEMS ADMINSTRATOR I SNI Technology's client is looking for an IT Network/Syste

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

Network Engineer / Systems Administrator (SA)Job Title - Network Engineer / Systems Administrator (SA)

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Network Engineer / Systems Administrator (SA) 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 skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, secur

Sr Systems AdministratorJob Title - Sr Systems Administrator

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Lone Tree, Colorado, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Sr Systems Administrator, you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system para

Linux System AdministratorJob Title - Linux System Administrator

Sun Technologies,Inc.Company Name - Sun Technologies,Inc.

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Remote

Contract

Job Title: Linux System Administrator Duration: up to 12 months contract (with the possibility of extension) Location: Fort Worth, TX 76108 Pay Rate: $60/hr - $70/hr on W2 [the pay rate may differ depending on your skills, education, experience, and other qualifications] Featured Benefits: Medical Insurance in compliance with the ACA401(k)Sick leave in compliance with applicable state, federal, and local laws Skills Required: The Linux Systems Administrator will be a member of the Enterprise IT

Linux System AdministratorJob Title - Linux System Administrator

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is hiring a Windows and Linux System Administrator 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 facilitate elec

Linux Administrator/Support Desk Analyst - UJMSJob Title - Linux Administrator/Support Desk Analyst - UJMS

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is currently hiring for a Linux Administrator/Support Desk Analyst (SDA) provides service desk and application and security management services for the Unified Jury Management System (UJMS). The analyst will be required to have troubleshooting, analytical, and decision-making skills to provide support and resolution to end-user issues or questions. The incumbent will provide operational and technical support to resolve software application, security, and technical issues associa

Linux Administrator - Red HatJob Title - Linux Administrator - Red Hat

Convene Inc.Company Name - Convene Inc.

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Remote

Contract

About Convene Inc. Convene, Inc. is a Tampa based, award-winning technology services organization with offices and resources throughout the US, Mexico, and India. We have successful, referenceable customers, competitive benefits, and high-growth opportunities.Linux Administrator - Red Hat Duties will include but not limited to the following: Able to deploy and set up Red Hat Enterprise Linux on physical or virtual servers. Able to implement security policies, managing firewalls, and monitoring

Linux L3 Systems Engineer - Infrastructure Security, VP (C13)Job Title - Linux L3 Systems Engineer - Infrastructure Security, VP (C13)

CitiCompany Name - Citi

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Remote or New Castle, Delaware, USA

Full-time

About Citi: Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. As a bank with a brain and a soul, Citi creates economic value that is systemic

Systems Administrator 3Job Title - Systems Administrator 3

Kforce Technology StaffingCompany Name - Kforce Technology Staffing

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Remote or Redmond, Washington, USA

Contract

RESPONSIBILITIES: Kforce has a client that is seeking a highly skilled Systems Administrator 3 in Redmond, WA. Key Responsibilities: * Systems Administrator 3 will maintain, configure, and troubleshoot Ubuntu Linux systems in production and development environments * Administer and manage Perforce (Helix Core) version control, Swarm code review systems, including user management, service configuration via SDP, Helix authentication service (HAS), replication, backups, disaster recovery, and upgr