Windows Linux Systems Engineer Jobs in Denver, CO

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Sr. Principal Linux System Administrator

Raytheon

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-01 Country: United States of America Location: CO108: 16201 East Centretech Parkway 16201 East Centretech Parkway Building S78, 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 Sr. Principal Linux System Administrator - Aurora, CO, must have an active TS/SCI CI Poly
Posted 15 days ago | Updated 3 hours ago

Infrastructure Platform Engineer

Vaco by Highspring

•

Remote

Contract

Job Title: Infrastructure Platform Engineer Job Type: Contract-to-hire Worksite Location: Fully Remote Industry: IT Services and IT Consulting Contract Hourly Compensation: $60.00 - $70.00 / hour W2 Salary Conversion: $120,000 - $145,000, based on experience and credentials Employee Benefits 401(k) Retirement Plan with Employer Match Medical, Vision, Prescription, Telehealth, & Dental Plans Life & Disability Insurance Unlimited Paid Time Off **Vaco is not seeking third-party support to aid in f
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Posted 25 days ago | Updated 10 days ago

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

Lockheed Martin Corporation

•

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 9 hours ago

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

Leidos

•

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 20 days ago | Updated 17 hours ago

Software Engineer TS/SCI Poly

Leidos

•

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 20 days ago | Updated 17 hours ago

Principal Linux System Administrator

Raytheon

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-07 Country: United States of America Location: CO108: 16201 East Centretech Parkway 16201 East Centretech Parkway Building S78, 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 Principal Linux System Administrator - Aurora, CO, must have an active TS/SCI CI Poly clea
Posted 34 days ago | Updated 3 hours ago

Computer Systems Analyst - Senior

NuAxis LLC

•

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 17 days ago | Updated 8 hours ago

Software Engineer

Trimble Mobile Solutions

•

Westminster, Colorado, USA

Full-time

Job Title: Software Engineer, Autonomous Dozer Controls & Machine Guidance Location: Westminster, CO Division: Trimble Civil Construction Field Systems (CCFS) Want to shape how civil construction gets done, autonomously? Are you an experienced and innovative Software Engineer with a passion for autonomous systems and machine guidance? Join our dynamic team at Trimble Civil Construction Field Systems (CCFS) where you'll be instrumental in developing cutting-edge software for autonomous and guid
Posted 25 days ago | Updated 9 hours 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 25 days ago

EMS/SCADA Consultant

Select Source International

•

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 24 days ago | Updated 2 hours ago

Hospital Automation Network Solutions Specialist

Masimo Corporation

•

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 19 days ago | Updated 9 hours ago

Antivirus Admin (ONLY W2 CANDIDATES)

ERPA

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Remote

Contract

Title: Antivirus Admin (Only W2 Candidates) Location: Remote but preference is NC, SC, Chicago, Quincy Mass, Carlisle PA or Greenville SC Type: Contract Description: The Antivirus Administrator role is to centrally govern and oversee a diverse enterprise environment s antivirus solutions to maintain current, operational saturation and stability of all antivirus agents across all in scope systems of client. Qualified candidates will have the following experience and skills: Background in IT infr
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Posted 1 day ago

Infrastructure Engineer - ENG05 - Cleared On-Site

Computer Merchant, Ltd., The

•

Aurora, Colorado, USA

Full-time

JOB TITLE: SR PLATFORM ENGINEER LOCATION: AURORA, CO RATE RANGE: 95.00-100.00 PER HOUR JOB#: 14860837 REQUIRED Typically requires BS/BA Degree in Science, Technology Engineering Math (STEM) in Computer Science, Computer Engineering, Information Technology or Physics and 8+ years of related work experience Experience with Agile Development Methodologies (E.g. scrum, SAFe) Experience with VMware Experience with programming languages (E.g. Python, Java, Ruby, Bash, C++, C#, Go) Current TS/SCI /
Posted 32 days ago | Updated 6 hours ago

System Administrator

BCforward

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Remote

Contract

System Administrator BCforward is currently seeking a highly motivated System Administrator for a remote opportunity! Position Title: System Administrator Location: Remote Anticipated Start Date: ASAP Please note this is the target date and is subject to change. BCforward will send official notice ahead of a confirmed start date. Expected Duration: Initial 6 month-contract Job Type: Contract Pay Range: $46/hr-$50/hr Please note that actual compensation may vary within this range due to fact
Posted 18 days ago | Updated 10 hours 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 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 43 days ago | Updated 31 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 44 days ago | Updated 31 days ago

IBM Rational CC/CQ- Admin

Ventures Unlimited

•

Remote

Full-time

Job DescriptionMust have working knowledge of IBM Rational Clear Case and Clear QuestAdminister IBM Rational CC/CQ, and other tools HP ALM, JIRA, AWS, Gitlab in each environment including applying packs and upgradesMust have Working knowledge of CC/CQ Version: 8.0.1/9.2 and aboveNice to have IBM Rational WebSphere 8.55 ExperirenceAbility to work with SQL Server DB and Oracle DBIdentify configuration items, audit changes made and manage configurations throughout the software development lifecycle
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Posted 4 days ago | Updated 3 days ago

Sr. Software Engineer

Visa Inc.

•

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 36 days ago | Updated 9 hours ago

Position: Google Cloud Platform Cloud Infrastructure

Innovative Consulting Solutions, LLC

•

Remote

Contract

Position: Google Cloud Platform Cloud Infrastructure Location: Remote Experience with Google Cloud Platform and Azure and AWS. Google Cloud Platform is the primary skillsetSystems administration expertise (Windows, Linux)Scripting technologies (Powershell, Bash, Python)Enterprise Monitoring Tools for infrastructure and applicationsITIL Foundations and Intermediate Level Transition, Operations, and Continuous ImprovementEnterprise ITSM and CMDB ToolsData Networks; routing, firewalls, load balance
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Posted 5 hours ago

System Administrator

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

System 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 proactive and detail-oriented System Administrator to join our team and help maintain the stability, security, and performance of our IT infrastructure. In this role, you will be responsible for managing servers, networks, and other critical systems, ensuring that they run efficiently and securely. You will also handle system updates,
Posted 60+ days ago | Updated 9 hours ago