Windows/Linux System Administrator Jobs in Denver, CO

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Test Engineer

York Space Systems

•

Greenwood Village, Colorado, USA

Full-time

Salary: $70,000-$100,000 York Space Systems was founded to radically improve spacecraft affordability and reliability, transforming, and enabling next-generation space mission operations worldwide. Today, York is one of the most innovative aerospace companies, specializing in end-to-end customer solutions and the rapid production of spacecraft platforms. York's complete Space Segment Solution includes spacecraft production, payload integration, system integration & test, launch services, ground
Posted 43 days ago | Updated 11 hours ago

Systems Engineer, Virtualization/Linux Engineering (Junior Level)

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 22 hours ago | Updated 10 hours ago

Support Service Analyst

Robert Half

•

Broomfield, Colorado, USA

Contract

Description We are looking for a skilled Support Service Analyst to provide exceptional desktop support in a fast-paced and dynamic environment. This long-term contract position is based in Broomfield, Colorado, and will require a proactive individual who is adept at troubleshooting and delivering top-notch IT service. The role offers an exciting opportunity to enhance IT processes, improve knowledge management practices, and develop scalable tools to optimize user experiences. Responsibilities
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Posted 29 days ago | Updated 7 hours ago

Sr. Systems Engineer, Virtualization/Linux Engineering

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 10 days ago | Updated 10 hours ago

Onboarding Engineer (428051)

Vaco by Highspring

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Remote

Contract

Onboarding Engineer (MSP) | 448051 DETAILS Location: 100% Remote Position Type: 6M C2H Hourly / Salary: to $200K JOB SUMMARY Vaco Technology is seeking an Onboarding Engineer for a 6M C2H opportunity that is 100% remote-based. The Onboarding Engineer will be part of the Managed Services Team that is customer-focused through effective communication. The Onboarding Engineer with configure the infrastructure in the client environments to be added into monitoring, including Network, Server, Storage
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Posted 33 days ago | Updated 31 days ago

Computer Systems Analyst - Senior

NuAxis LLC

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Denver, Colorado, USA

Full-time

We are a federal IT company on a mission to make customer experience (CX) the center of every government solution. Technology is our Passion. People are our Purpose. Grow with us! As a growing business, every NuAxis Innovations employee impacts the success and direction of this company. We all share a true passion for technology and enjoy working together to develop solutions, share ideas, and exchange knowledge. At NuAxis Innovations, we celebrate diversity and the unique perspective each tea
Posted 4 days ago | Updated 9 hours ago

Cyber Security Engineer Sr (Software) - TS/SCI Clearance

Lockheed Martin Corporation

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Remote or Littleton, Colorado, USA

Full-time

Job Description What We're Doing At Lockheed Martin, we unite individuals driven by purposeful innovation to keep people safe and tackle the world's most complex challenges. Our team consists of the brightest minds in the industry, working together to advance technology and protect critical systems. We foster a culture of integrity, collaboration, and corporate responsibility, making Lockheed Martin a place where innovation thrives. The Work Lockheed Martin Rotary & Mission Systems is seekin
Posted 50 days ago | Updated 11 hours ago

Sr. Software Engineer TS/SCI Polygraph $25k SIGN ON!

Leidos

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Aurora, Colorado, USA

Full-time

Description Leidos has an exciting opportunity for a Senior Software Engineer to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a nationally significant and fast-paced cryptographic key management program and we are extending a $25,000.00 SIGN ON BONUS! Program execution here follows DEVOPS best practices and employs robust development, test, and production environments. Additionally, the program is using Behavioral Driven Development (BDD) and t
Posted 7 days ago | Updated 4 hours ago

CyberArk Security Engineer (Remote Option)

Raymond James Financial Inc

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Remote or Denver, Colorado, USA

Full-time

Job Description Note: This position will follow our hybrid work model, we expect the selected candidate to be in office 2-3 days a week at one of the following office locations: St, Petersburg, FL (primary) Denver, CO; Memphis, TN; or Southfield, MI, however we will be considering remote as an option. Job Summary: The Raymond James Identity and Access Management (IAM) team is looking for a talented CyberArk Engineer to join our dynamic and growing PAM team. This engineer will sit with the IAM
Posted 60+ days ago | Updated 11 hours ago

Software Engineer TS/SCI Poly

Leidos

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Aurora, Colorado, USA

Full-time

Description Leidos is looking for a Software Engineer to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a nationally significant and fast-paced cryptographic key management program. Program execution follows DEVOPS best practices and employs robust development, test, and production environments. Additionally, the program is using Behavior Driven Development (BDD) and test automation tools alongside a full suite of team collaboration tools. Leidos
Posted 7 days ago | Updated 4 hours ago

Principal RF/HW Engineer

RTX Corporation

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-05-01 Country: United States of America Location: CO112: Buckley AFB 18500 East 6th Ave 18500 East 6th Avenue Buckley AFB, 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 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help o
Posted 49 days ago | Updated 10 hours ago

Full Stack Systems Engineer IT / TS/SCI Poly / Onsite: Littleton, CO

Lockheed Martin Corporation

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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 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 more than 70 countries. This Lockheed Martin Enterprise Operations (EO) position will suppor
Posted 21 days ago | Updated 10 hours ago

Cyber Security Engineer (Software) - TS/SCI Clearance

Lockheed Martin Corporation

•

Remote or Littleton, Colorado, USA

Full-time

Job Description What We're Doing At Lockheed Martin, we unite individuals driven by purposeful innovation to keep people safe and tackle the world's most complex challenges. Our team consists of the brightest minds in the industry, working together to advance technology and protect critical systems. We foster a culture of integrity, collaboration, and corporate responsibility, making Lockheed Martin a place where innovation thrives. The Work Lockheed Martin Rotary & Mission Systems is seekin
Posted 60+ days ago | Updated 11 hours ago

DB2 DBA LUW- Remote(W2 Only)

iTek People, Inc.

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Remote

Contract

Role: DB2 DBA LUW - (W2 Ony) Location: remote Key Responsibilities: Install, configure, and upgrade DB2 LUW database instances on Linux, Unix, or Windows platforms. Monitor database performance, conduct tuning, and optimize queries and indexing strategies. Perform database backups, restores, and recovery operations using DB2 utilities (e.g., db2backup, db2restore). Set up and maintain HADR (High Availability Disaster Recovery) and TSM (Tivoli Storage Manager) configurations. Create and manage d
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Posted 5 days ago

Hospital Automation Network Solutions Specialist

Masimo Corporation

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Remote or Denver, Colorado, USA

Full-time

Job Description Job Summary The Hospital Automation Network Solution Specialist is responsible for providing troubleshooting, training and technical support for Masimo customers within their regional area, occasional travel to other regions, and remote support. Primary duties involve working on Proof of Concepts, key account support and further enhancing hospital automation solutions within key accounts. When scheduling permits, you may also perform installation of the company's network based
Posted 6 days ago | Updated 11 hours ago

Observability Engineer

NextGen Global Resources LLC

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Littleton, Colorado, USA

Contract

Grafana Administrator / Observability Engineer We are seeking a Grafana expert to lead and manage observability infrastructure across both on-prem and cloud environments. This role requires strong hands-on experience in Grafana administration, dashboard creation, and integration with monitoring tools. You will play a key role in designing, implementing, and maintaining a scalable observability platform. Key Responsibilities: Architect, design, and implement observability infrastructure Build an
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Posted 9 days ago

EMS/SCADA Consultant

Select Source International

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Golden, Colorado, USA

Contract

The role is responsible for gathering and analyzing client business requirements to identify and solve technical problems related to Supervisory Control and Data Acquisition (SCADA) and Energy Management System (EMS) applications including Generation and Dispatch Control (GDC) a.k.a. Automatic Generation Control (AGC), Inter-Control Center Communication Protocol (ICCP), Transmission Security Management (TSM), and Dispatch Training Simulator (DTS), which are all used for controlling and monitorin
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Posted 12 days ago | Updated 1 day ago

IT Application Solutions Architect (Rail or Transportation Domain)

Allwyn Corporation

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Remote

Contract, Third Party

Role: IT Application Solutions Architect-Senior Remote Contract Experience: 10+ Years Deep experience with complicated business systems (Rail or Transportation is a must!)Experience across multiple IT roles (app development, technology, data).Proven ability to work with Sr IT management to define overall strategy.Extensive Business Architecture and Application ExperienceExperience with architecture governance.Experience with a variety of architectural patterns, must include event-driven architec
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Posted 12 days ago

Systems Administrator

Zachary Piper Solutions, LLC

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Remote

Full-time

Piper Companies is seeking a Systems Administrator for an established healthcare organization. This is a 6-month contract and is REMOTE (based in US, must work EST). Responsibilities of the Systems Administrator: Support the remediation of Windows Server 2012 environments, including upgrade planning and execution to Azure. Maintain and administer enterprise-level Windows and Linux systems in a hybrid on-prem/cloud environment. Collaborate with vendors to manage third-party applications and navi
Posted 31 days ago | Updated 18 days ago

Systems Administrator

Zachary Piper Solutions, LLC

•

Remote

Full-time

Piper Companies is seeking a Systems Administrator for an established healthcare organization. This is a 6-month contract and is REMOTE (based in US, must work EST). Responsibilities Support the remediation of Windows Server 2012 environments, including upgrade planning and execution to Azure. Maintain and administer enterprise-level Windows and Linux systems in a hybrid on-prem/cloud environment. Collaborate with vendors to manage third-party applications and navigate upgrade or decommission sc
Posted 32 days ago | Updated 18 days ago