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Aurora, Colorado

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Today

Position Summary: The Senior Systems Administrator acts as the second tier of support for Meriplex's Technical Assistance Center (TAC) and reports to a TAC Manager. In addition to working within the TAC's ticketing system to resolve Level 2 end user issues, this role acts as the escalation point within the L2. The Senior Systems Administrator must deliver exemplary customer service and technical advice while following all SOPs to complete customer requests. The person in this position is respon

Full-time

USD 60,000.00 - 90,000.00 per year

Senior Systems Administrator

Englewood, Colorado

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Today

WHO ARE WE? Bordering Denver to the south, the City of Englewood is a vibrant city of over 34,000 residents and over 2,100 businesses. It is a tight-knit community with a small city atmosphere, yet has all of the benefits associated with the larger Denver metropolitan area. The city is served by light rail and bus transit systems linking the community to downtown Denver and other locations, including Denver International Airport. The city owns a golf course, water park, and 17 programmed parks.

Full-time

USD 85,508.00 - 128,263.00 per year

Systems Administrator

Aurora, Colorado

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Today

Who we are: At Applied Network Solutions (ANS), we bring together some of the most curious minds in networking and cybersecurity. ANS was founded to disrupt the status quo. For over 20 years, our team provides expertise in network, system engineering and both offensive and defensive cybersecurity operations. What we do: Our vision is for a future in which talent and customers alike come to ANS because of our reputation for delivering technical excellence, solving our nation's toughest challen

Full-time

USD 100,000.00 - 200,000.00 per year

Systems Administrator Technician _TS/SCI with Polygraph

Aurora, Colorado

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Today

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: IT Infrastructure and Operations Job Qualifications: Skills: Computer Hardware, Information Systems, Information Technology (IT) Systems Certifications: CompTIA Security+ CE | CompTIA - CompTIA Experience: 1 + years of related experience ship Required: Yes Job Description: We are GD

Full-time

USD 64,230.00 - 74,750.00 per year

Multi-Platform Systems Administrator (Unix)

Hybrid in Denver, Colorado

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3d ago

Unix/Linux Systems AdministratorSalary Range:$80k to $120k OverviewOur client is seeking an experienced Unix/Linux Systems Administrator to support a diverse enterprise infrastructure across multiple Unix and Linux environments. This is a hands-on systems administration role focused on maintaining, supporting, and enhancing critical infrastructure systems. The ideal candidate will have strong Linux and Unix administration experience, excellent troubleshooting skills, and a solid foundation in s

Easy Apply

Full-time

$80,000 - $120,000

Staff Systems Administrator - Field Engineer - Clearance Required

Littleton, Colorado

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Today

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 ou

Full-time

USD 104,500.00 - 184,115.00 per year

Senior Systems Administrator - IT Engineer

Golden, Colorado

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Today

Are you passionate about shaping the future of humanity's presence in space? Lunar Outpost, an industry leader in space robotics and planetary vehicles, invites you to join our team! Lunar Outpost is dedicated to creating a permanent presence in space, while also driving positive impacts here on Earth. We are currently seeking a Senior Systems Administrator to contribute to our mission in a dynamic startup environment. As a Senior Systems Administrator, you will be responsible for the implementa

Full-time

USD 100,000.00 - 120,000.00 per year

Technical Systems Administrator II

Louisville, Colorado

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Today

Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond. Our success is measured by the trust of those who rely on what w

Full-time

USD 83,830.00 - 115,287.25 per year

Technical Systems Administrator III - Cameo & DOORS

Louisville, Colorado

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Today

Full-time

USD 105,929.00 - 145,673.00 per year

Systems Sr Administrator (IT)

Denver, Colorado

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Today

Posting Date 05/28/2026 2000 16th Street, Denver, Colorado, 80202, United States of America Senior Systems Administrator (IT) The DaVita Senior Systems Administrator works in a fast-paced, technology-dependent, security-conscious environment. Administrators ensure the effective and efficient delivery of information systems within an ITIL structure. They are responsible for a combination of production support and new project initiatives. Senior Systems Administrators work to maintain a highly

Full-time

USD 78,000.00 - 119,000.00 per year

IT Systems Delivery Administrator

Centennial, Colorado

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Today

Why Join Rincon Research Corporation (RRC)? At Rincon Research Corporation, our primary business is innovating, developing, and fielding digital signal processing (DSP) products and services for the United States Defense and Intelligence Communities in support of national security. Rincon Research Corporation (RRC), an employee owned company, is seeking a talented, tenacious, results-driven individualto work in a multi-disciplinary R&D environment with similarly motivated electrical engineers,

Full-time

USD 80,000.00 - 90,000.00 per year

Systems Administrator

Remote

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Today

Exciting Systems Administrator position with an established Wealth advisor firm. Senior Microsoft Systems Administrator - with Oracle Opera Cloud skills Job Description: Integration and configuration of Opera Cloud The Sr. Microsoft Systems Administrator will manage and secure our Microsoft 365 and Azure environments. Responsible for the Microsoft 365 and Zoom incl. Telephony environments. The role supports the onboarding and integration of multiple acquired firms, including data transfers ut

Easy Apply

Contract

$50 - $70

Systems Administrator

Remote

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Today

JOB SUMMARY The Systems Administrator will be responsible for the maintenance, configuration, and reliable operation of computer systems, servers, and networks. This role will ensure the smooth functioning of hardware, software, and related infrastructure to support organizational operations effectively. KEY RESPONSIBILITIES Install, configure, and maintain servers, operating systems, and software applications. Manage network infrastructure, including routers, switches, firewalls, and VPNs, ens

Full-time

IT Systems & Cloud Administrator

Louisville, Colorado

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Today

Infleqtion is a global quantum technology company solving the world's most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables "quantum everywhere" through our ecosystem of devices and platforms. Location Infleqtion has 6 office locations, operating out of Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This p

Full-time

USD 95,000.00 - 110,000.00 per year

Systems Administrator

Remote

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Today

The Disaster Recovery Specialist develops and maintains comprehensive disaster recovery strategies to ensure continuity of IT services supporting mission-critical systems in a highly regulated federal environment. This role leads risk and impact assessments to identify critical applications, infrastructure, and dependencies, defining recovery objectives and strategies that align with organizational resilience goals. The specialist coordinates regular exercises, tests, and plan reviews with IT an

Full-time

Systems Administrator/Engineer

Remote

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14d ago

Title: Systems Administrator/Engineer Location:Merrifield, VA Employment Type: Contract Compensation: Pay Range:$62.34-$76.19 Per Hr Description Join our team as a Systems Administrator/Engineer on a contract basis, working in a hybrid setting. You''ll be responsible for managing and maintaining IT systems, ensuring their security and stability. Key technologies include various operating systems and cybersecurity tools. Key Responsibilities Maintain and support IT and security tools and syst

Easy Apply

Contract, Third Party

$62.34 - $76.19

Systems Administrator Lead

Remote

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Today

Position Overview The Systems Administrator Lead provides technical and leadership oversight for the administration of servers, operating systems, and core infrastructure services that support mission-critical operations in a federal IT environment. The role directs day-to-day systems administration activities across Windows, Unix, Linux, and virtualization platforms, ensuring high availability, performance, and security for on-premises and cloud workloads. The Systems Administrator Lead coordin

Full-time

Senior Systems Administrator

Remote

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Today

Description & Requirements Maximus is a trusted federal partner supporting mission-critical programs across national security, defense, and public service delivery. Our work focuses on sustaining, operating, and improving essential government systems and services, with proven operational excellence, and a commitment to mission success for our customers. Joining Maximus means becoming part of a collaborative, mission-driven organization where teamwork, accountability, and professional growth are

Full-time

USD 100,000.00 per year

Senior Systems Administrator

Remote

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Today

Full-time

USD 100,000.00 per year

Senior Systems Administrator

Remote or Niles, Illinois

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Today

Overview We're seeking a Senior Systems Administrator to support and enhance our global IT infrastructure across both on-premises and cloud environments. This role will lead key functions including Windows and Linux administration, SAN management, and SAP systems (including S/4HANA). In this role you will monitor and optimize system performance, maintain disaster recovery readiness, ensure compliance, and contribute to complex, cross-functional global initiatives. If you bring deep technical e

Full-time

USD 99,000.00 - 158,400.00 per year

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