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Littleton, Colorado

•

Today

Job#: 3040738 Job Description: Senior Systems Administrator (Linux) Denver, CO As a Sr. Linux Information Systems Administrator your responsibilities will include: Technical Support: Provide expert assistance to users in resolving technical issues with applications, connectivity, and other IT-related concerns. Cybersecurity Expertise: Conduct environmental vulnerability scans, remediate vulnerabilities, and perform system hardening to ensure the security of our systems. Root Cause Analysis: Pe

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Full-time

$75 - $100 per hour

Sr. Linux/Splunk Admin

Remote

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15d ago

Sr. Linux/Splunk Admin Job responsibilities: This position requires candidate to confidently demonstrate expertise in system admin/Splunk technical solutioning and trouble shooting in working session with stakeholders.Proficiency in managing a variety of operating systems, including Windows Server, Linux distributions (e.g., CentOS, Red Hat), and Unix systems.Experience in Linux/ Unix system administration functions to support the DevOps tool sets and supporting patching, SSL toolset, capacity p

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Contract

Depends on Experience

Sr Windows Admin

Littleton, Colorado

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Today

Job#: 3040741 Job Description: Sr. Windows Administrator Littleton, CO (Onsite) Requirements: Candidates must be able to obtain and/or maintain a Department of Defense --Secret clearance as a condition and continuation of employmentIAT Level II certification (Sec+, CND, CySA+, CCNA Security) The selected candidate will function as part of the IT support team; managing multiple closed environments, ensuring patching, STIGing, and infrastructure deployments for their assigned programs. They will

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Full-time

$75 - $100 per hour

Sr. Linux Red Hat Infrastructure Engineer

Remote or Denver, Colorado

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Today

Position: Sr. Linux Red Hat Infrastructure Engineer Job Description: Arrow Electronics is a global provider of products, services, and solutions to industrial and commercial users of electronic components and enterprise computing solutions. Arrow Electronics guides innovation forward for over 220,000 leading technology manufacturers and service providers. With 2025 sales of $30.9 billion, Arrow develops technology solutions that improve business and daily life. The company maintains 228 locatio

Full-time

USD 121,300.00 - 135,999.60 per year

Senior SRE (Linux) -

Remote

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2d ago

Job Title: Senior SRE (Linux) Location: RemoteWe are looking for a Senior SRE (Linux)to build and operate the systems that run on every host across our infrastructure.Our team owns OS configuration, automation, AMIs, and container base images acrossa large-scale hybrid environment (AWS + on-prem). If you enjoy working across layersfrom automation to low-level debuggingthis role sits right at that boundary.What Youll Do Build automation for Linux host lifecycle (config, patching, images) Own syst

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Contract, Third Party

50 - 60

Sr Systems Security Engineer / Sr. Core Applications Administrator

Lone Tree, Colorado

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Today

The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS t

Full-time

USD 143,487.14 - 197,294.82 per year

Senior Linux Engineer

Remote or Jersey City, New Jersey

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Today

Tradeweb is a global leader in electronic trading across asset classes. As financial markets become increasingly interconnected, our technology enables efficient, multi-asset trading on a global scale. We serve more than 3,000 clients in more than 85 countries, including many of the world?s largest banks, asset managers, hedge funds, insurers, corporations, and wealth managers. Creative collaboration and sharp client focus have helped fuel our organic growth. We facilitated average daily tradin

Full-time

Senior Software Engineer - Linux Kernel/eBPF

Remote or Alabama

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Today

Cloud Network Monitoring (CNM) gives you visibility into your network traffic between services, containers, availability zones, and any other tag in Datadog. Our core responsibility is tracking network flows on the host using eBPF, ensuring deep visibility into network health and network signals across a wide variety of Linux distributions and kernel versions. Datadog is investing heavily in Network Monitoring to give customers comprehensive Layer 1 to Layer 7 visibility across their infrastruc

Full-time

USD 187,000.00 - 240,000.00 per year

Senior Software Engineer I (C++/C# in Embedded Linux)

Remote

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Today

Alliance Technical Group, a premier partner in environmental solutions, is seeking a high-caliber Senior Software Engineer to serve as a technical cornerstone in our R&D organization. In this role, you will be the primary "Right Hand" to the Senior R&D Manager, taking hands-on ownership of the modernization of our next-generation Embedded Data Acquisition platforms. You will focus on the "How" of execution-transforming high-level architectural vision into high-performance C#/.NET applications r

Full-time

Senior Software Engineer - C++ Linux & Cloud Workload Security

Remote

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Today

Our Purpose At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find

Full-time

USD 128,000.00 - 176,000.00 per year

Senior Linux Application Modernization Engineer Azure Cloud Migration

Remote or Philadelphia, Pennsylvania

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Today

Inspiration Global is seeking a Senior Linux Application Modernization Engineer to support a large-scale enterprise migration to Microsoft Azure. This role serves as the bridge between application owners, development teams, Linux platform teams, and cloud engineering teams to assess application readiness, reduce migration risk, and identify modernization opportunities. The ideal candidate combines Linux systems expertise, application architecture, development, DevOps, and cloud engineering expe

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Full-time, Part-time, Contract, Third Party

Senior Linux Kernel Engineer (Memory Management & Device Drivers) | Contract | Almost Remote (Hybrid - San Jose, CA - Onsite once in a Month)

Remote

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11d ago

Senior Linux Kernel Engineer (Memory Management & Device Drivers) | Contract | Almost Remote (Hybrid - San Jose, CA - Onsite once in a Month) Job Title: Senior Linux Kernel Engineer (Memory Management & Device Drivers) Location: Almost Remote (Hybrid - San Jose, CA - Onsite once in a Month)Local Candidates in California OnlyContractJob OverviewWe are seeking a highly skilled Senior Linux Kernel Engineer to join the Systems Software team, focusing on next-generation AI and data center platforms.

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Contract

Depends on Experience

Senior Linux Infrastructure Engineer

Remote

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Today

Voleon is a technology company that applies state-of-the-art AI and machine learning techniques to real-world problems in finance. For nearly two decades, we have led our industry and worked at the frontier of applying AI/ML to investment management. We have become a multibillion-dollar asset manager, and we have ambitious goals for the future. Your colleagues will include internationally recognized experts in artificial intelligence and machine learning research as well as highly experienced f

Full-time

USD 215,000.00 - 250,000.00 per year

Perm & Remote Advanced & Certified Senior OpenShift SME

Remote

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9d ago

Title: Perm & Remote Advanced & Certified Senior OpenShift SME Remote- Can be located anywhere in the USA Travel: 25% This is a Permanent /FTE ( Full Time employee) Role KEYS: Must have extremely deep & advance Red Hat OpenShift expertise. Basic knowledge or skills will not cut it. Purely a technical role- no pre-sales skills required. Compensation: $175-180,000 + 20K Bonus and fantastic Benefits. As North Americas premier enabler of secure digital business, we integrate cutting-edge technical e

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Full-time

150000 - 180000

Senior Orion Systems Engineer

Littleton, Colorado

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Today

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready soluti

Full-time

USD 89,300.00 - 157,550.00 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

Multi-Platform Systems Administrator (Unix)

Hybrid in Denver, Colorado

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25d 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

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Full-time

$80,000 - $120,000

Senior Microsoft Exchange Specialist (Part-Time / Contract)

Remote or New York, New York

•

Today

job summary: We are seeking an experienced Microsoft Exchange Specialist to provide critical fractional support for our client's highly customized hybrid Exchange On-Premises and Exchange Online (EXO) environment. Currently, the environment relies on a single internal expert. This role will serve as a vital backup, handling escalated issues, modernizing documentation, and ensuring the ongoing health, security, and reliability of the messaging platform. This role is ideal for a seasoned technic

Contract

USD95 - USD120

Application Support Sr - Contractor | W2 ONLY

Denver, Colorado

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25d ago

POSITION LOCATION: Pittsburgh, PA 15222 | Strongsville, OH 44136 | Phoenix,AZ 85016 | Lakewood, CO 80215 INTENDED LENGTH OF ASSIGNMENT:Through 12/26/2027 POTENTIAL FOR CONTRACT EXTENSION:Yes ROLE/RESPONSIBILITIES: Job Summary: We are seeking a skilled OpenShift Administrator with a strong background in Linux system administration, scripting,automationand DevOps practices. The ideal candidate willbe responsible formaintainingand supporting RedHat OpenShift clusters inproductionenvironment, provid

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Contract

Depends on Experience

Senior Embedded Software Engineer II

Westminster, Colorado

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Today

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals

Full-time

USD 133,000.00 - 161,000.00 per year

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