Systems Administrator Jobs in Denver, CO

1 - 20 of 102 Jobs

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

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

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

Systems AdministratorJob Title - Systems Administrator

CACI International, Inc.Company Name - CACI International, Inc.

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Denver, Colorado, USA

Full-time

Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local Anticipated Posting End: 6/23/2025 The Opportunity: CACI has an exciting and immediate opportunity for a Systems Administrator to support the Federal Protective Service (FPS) located at the Denver MegaCenter. More About the Role: Requires you to have a strong technical background a

Systems AdministratorJob Title - Systems Administrator

General DynamicsCompany Name - General Dynamics

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Aurora, Colorado, USA

Full-time

This is an unpaid fellowship through the Department of Defense (DoD) SkillBridge Program. The fellow selected for this role will not receive compensation or benefits from GDIT and will not be an employee, agent or contractor of GDIT but rather will remain an employee of the DoD and will receive compensation and benefits through the DoD. Type of Requisition: Regular Clearance Level Must Currently Posses: Top Secret SCI + Polygraph Clearance Level Must Be Able To Obtain: Top Secret SCI + Polygr

Senior Systems AdministratorJob Title - Senior Systems Administrator

Contact Government Services, LLCCompany Name - Contact Government Services, LLC

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Denver, Colorado, USA

Full-time

Senior Systems Administrator Employment Type: Full Time, Senior-level Department: Legal/IT CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribute to government innovation, apprec

Systems Administrator Technician _TS/SCI with PolygraphJob Title - Systems Administrator Technician _TS/SCI with Polygraph

General DynamicsCompany Name - General Dynamics

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Aurora, Colorado, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Hardware, Information Systems, Information Technology (IT) Systems Certifications: None Experience: 1 + years of related experience ship Required: Yes Job Description: We are GDIT. The people supporting and securing some o

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

Lead Systems Administrator (TS/SCI with Poly Clearance Required)Job Title - Lead Systems Administrator (TS/SCI with Poly Clearance Required)

FluorCompany Name - Fluor

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Aurora, Colorado, USA

Full-time

Job Description Must possess a clearance at the TS/SCI access level, and have favorably completed a government issued polygraph The Lead Systems Administrator is highly knowledgeable within designated Industrial Control System (ICS) Information Technology (IT) area of responsibility and applies that knowledge toward broad and diverse assignments. This role plans and coordinates activities related to the design, development, implementation, and integration of IT solutions. The Lead Systems Ad

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

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

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

Relativity Senior Systems AdministratorJob Title - Relativity Senior Systems Administrator

Contact Government Services, LLCCompany Name - Contact Government Services, LLC

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Denver, Colorado, USA

Full-time

Relativity Senior Systems Administrator Employment Type: Full Time Department: Legal/IT We are seeking a Relativity Sr. Systems Administrator to join our team! You will handle a variety of projects to support and improve the organization's network systems. CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribute to governmen

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

Automation Engineer / Systems AdministratorJob Title - Automation Engineer / Systems Administrator

Parsons Services CompanyCompany Name - Parsons Services Company

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Boulder, Colorado, USA

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: Parsons is looking for a talented Automation Engineer / Systems Administrator to joi

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

Systems Administrator (TS/SCI with Poly Clearance Required)Job Title - Systems Administrator (TS/SCI with Poly Clearance Required)

FluorCompany Name - Fluor

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Aurora, Colorado, USA

Full-time

Job Description Must possess a clearance at the TS/SCI access level, and have favorably completed a government issued polygraph The Systems Administrator is highly knowledgeable within designated Industrial Control System (ICS) Information Technology (IT) area of responsibility and applies that knowledge toward broad and diverse assignments. This role will install, maintain, audit, and support a stand-alone Microsoft Windows network environment using a VMware backend infrastructure. Analyze

Systems Administrator 3Job Title - Systems Administrator 3

Randstad DigitalCompany Name - Randstad Digital

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Remote or Redmond, Washington, USA

Contract

job summary: We are seeking a highly skilled and motivated Linux System Administrator with at least 5 years of hands-on experience in Linux systems administration and 3 years of Perforce (Helix Core) administration experience. The ideal candidate will also have a strong background in Infrastructure as Code (IaC), particularly using Terraform, to support our growing infrastructure and DevOps initiatives. location: Redmond, Washington job type: Contract salary: $31 - 41 per hour work hours: 8

RACF / Mainframe Systems AdministratorJob Title - RACF / Mainframe Systems Administrator

Turing IT LabsCompany Name - Turing IT Labs

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Remote

Contract

Hello All, Hope you are doing well! One of our clients is looking for RACF/ Mainframe Administrator REMOTE. If you fulfil these requirements and are interested in this position, please send your most updated resume to the following e-mail address: Job Title: RACF/ Mainframe Administrator Location/ Work Mode: REMOTE Duration : 6 months subject to extension About the Role This position will be a highly skilled, senior member of the team requiring a wide range of application development and applic

Systems AdministratorJob Title - Systems Administrator

TEKsystemsCompany Name - TEKsystems

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Remote or Pascagoula, Mississippi, USA

Full-time

Description The IT Systems Administrator will maintain system stability, security, and performance across cloud and on-premises environments. The IT Systems Administrator will be responsible for administering a broad range of technologies and services, focusing on Active Directory (AD), Entra, Virtual Desktop Infrastructure (VDI), Remote Access, Email systems, and Cloud Storage Solutions like OneDrive. In addition to day-to-day operations, the IT Systems Administrator will be responsible for pl