Principal Linux Systems Administrator Jobs in Colorado

161 - 180 of 314 Jobs

Information Security EngineerJob Title - Information Security Engineer

Virginia JobsCompany Name - Virginia Jobs

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Remote or Charlottesville, Virginia, USA

Full-time

Information Security Engineer Position Overview: We are seeking a highly skilled Information Security Engineer with deep expertise in Splunk and Splunk Enterprise Security to join our cybersecurity team. The ideal candidate will have extensive engineering experience across multiple security domains, including SIEM, SOAR, Cloud Security, system administration, vulnerability management, network security/firewalls, API integration, scripting, and automation. This position will play a critical rol

Sr. Software Engineer-Automated Test Framework TS/SCI PolyJob Title - Sr. Software Engineer-Automated Test Framework TS/SCI Poly

LeidosCompany Name - Leidos

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Aurora, Colorado, USA

Full-time

Description Leidos has a new and exciting opportunity for an Automated Test Framework Software Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% c

AWS Systems Engineer - ONSITEJob Title - AWS Systems Engineer - ONSITE

CalanceCompany Name - Calance

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Centennial, Colorado, USA

Contract

**Position Overview:** We are seeking a highly skilled and experienced Systems Engineer to join our dynamic team. The ideal candidate will be proficient in managing and engineering complex IT systems with a focus on AWS Cloud Services and Security Hardening. You will play a crucial role in maintaining and enhancing the performance of our company s IT infrastructure. **Key Responsibilities:** - Design, deploy, and maintain AWS Cloud environments, including but not limited to services such as AWS

Senior Specialist, Cyber Infrastructure Systems Engineer Secret - Colorado Springs, COJob Title - Senior Specialist, Cyber Infrastructure Systems Engineer Secret - Colorado Springs, CO

L3Harris TechnologiesCompany Name - L3Harris Technologies

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Colorado Springs, Colorado, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Senior Cloud Vulnerability Management EngineerJob Title - Senior Cloud Vulnerability Management Engineer

SAICCompany Name - SAIC

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Remote

Full-time

Job ID: 2505310 Location: REMOTE WORK, VA, US Date Posted: 2025-05-13 Category: Cyber Subcategory: Cybersecurity Spec Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description As a Senior Cloud Vulnerability Management Engineer with over 8 years of experience, you will play a critical role in the management, enhancement, and security of our cloud environments. Your deep

Endpoint & Network Security - Senior Infrastructure Production Support Analyst, VP (C13)Job Title - Endpoint & Network Security - Senior Infrastructure Production Support Analyst, VP (C13)

CitiCompany Name - Citi

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Remote or Jacksonville, Florida, USA

Full-time

About Citi: Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. As a bank with a brain and a soul, Citi creates economic value that is systemic

Lead Site Reliability Engineer - RemoteJob Title - Lead Site Reliability Engineer - Remote

UnitedHealth GroupCompany Name - UnitedHealth Group

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Remote or Minnetonka, Minnesota, USA

Full-time

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us adv

Application Support EngineerJob Title - Application Support Engineer

Robert HalfCompany Name - Robert Half

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Remote or Jacksonville, Florida, USA

Contract

Description Are you a tech-savvy problem solver with a passion for keeping critical banking applications running smoothly? Do you thrive in a fast-paced, dynamic environment where your expertise directly impacts millions of users? If so, we want YOU to join our cutting-edge team as a Remote Application Support Engineer! Forget the commute and embrace the freedom of remote work! We're seeking a highly motivated and experienced Application Support Engineer to be the guardian of our core banking a

Staff Enterprise Application EngineerJob Title - Staff Enterprise Application Engineer

GE AerospaceCompany Name - GE Aerospace

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Remote

Full-time

Job Description Summary GE is forming operations teams dedicated to ensuring the performance and availability of Compute and Network infrastructure across all business segments. These teams, composed of highly talented individuals, focus on maintaining availability through the operational excellence of the Supplier Rating System. The ideal candidate will lead both offshore and onshore teams, possess strong technical skills, be passionate about automating processes, and be fully committed to deli

Senior Specialist, Cyber Infrastructure Systems Engineer Secret - Colorado Springs, COJob Title - Senior Specialist, Cyber Infrastructure Systems Engineer Secret - Colorado Springs, CO

Harris CorporationCompany Name - Harris Corporation

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Colorado Springs, Colorado, USA

Full-time

Specialist, Cyber Infrastructure Systems Engineer TS/SCI - Colorado Springs, CO (445375)Job Title - Specialist, Cyber Infrastructure Systems Engineer TS/SCI - Colorado Springs, CO (445375)

Harris CorporationCompany Name - Harris Corporation

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Colorado Springs, Colorado, USA

Full-time

Lead, Cyber Infrastructure Systems Engineer TS/SCI - Colorado Springs, CO (445375)Job Title - Lead, Cyber Infrastructure Systems Engineer TS/SCI - Colorado Springs, CO (445375)

Harris CorporationCompany Name - Harris Corporation

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Colorado Springs, Colorado, USA

Full-time

Sr Service Engineer - E-6B Support (Onsite)Job Title - Sr Service Engineer - E-6B Support (Onsite)

RTX CorporationCompany Name - RTX Corporation

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Remote or Oklahoma, USA

Full-time

Date Posted: 2025-04-16 Country: United States of America Location: HOK99: Field Office - OK Remote Location, Remote City, OK, 73101 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: Top Secret - Current Looking to join a team that values collaboration, innovation, and excellence? Collins Aerospace is looking for a Sr Service Engineer for E-6B Support at Tinker Air Force Base in Oklahoma. We offer continuous learning and developme

Senior Specialist, Cyber Infrastructure Systems Engineer Secret - Colorado Springs, COJob Title - Senior Specialist, Cyber Infrastructure Systems Engineer Secret - Colorado Springs, CO

L3Harris TechnologiesCompany Name - L3Harris Technologies

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Colorado Springs, Colorado, USA

Full-time

Network Engineer ArchitectJob Title - Network Engineer Architect

SAICCompany Name - SAIC

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Colorado Springs, Colorado, USA

Full-time

Job ID: 2504021 Location: COLORADO SPRINGS, CO, US Date Posted: 2025-04-01 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Interim Secret Clearance Level Must Be Able to Obtain: Secret Potential for Remote Work: No Description SAIC has an exciting opportunity for a Network Architect in Colorado Springs, CO at Schriever Space Force Base (SSFB) supporting the Missile Defense Agenc

Geospatial Data ScientistJob Title - Geospatial Data Scientist

Allstate Insurance CompanyCompany Name - Allstate Insurance Company

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Illinois, USA

Full-time

At Allstate, great things happen when our people work together to protect families and their belongings from life's uncertainties. And for more than 90 years our innovative drive has kept us a step ahead of our customers' evolving needs. From advocating for seat belts, air bags and graduated driving laws, to being an industry leader in pricing sophistication, telematics, and, more recently, device and identity protection. Job Description As a Geospatial Data Scientist, you'll be responsible for

Software EngineerJob Title - Software Engineer

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Remote or Colorado Springs, Colorado, USA

Full-time

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 solutio

Senior Software EngineerJob Title - Senior Software Engineer

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Remote or King of Prussia, Pennsylvania, USA

Full-time

Cloud System AdministratorJob Title - Cloud System Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Cloud 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 dedicated and innovative Cloud Systems Administrator to join our dynamic team. In this role, you will be at the forefront of managing and optimizing cloud-based environments to support mission-critical operations. You'll work collaboratively with a talented group of professionals, leveraging cutting-edge technologies to ensure s

Senior Software Engineer, Structured Storage (C++/Golang) (North Carolina)Job Title - Senior Software Engineer, Structured Storage (C++/Golang) (North Carolina)

Splunk Inc.Company Name - Splunk Inc.

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North Carolina, USA

Full-time

Description Role Summary The Structured Store Team is part of Splunk Data Platform foundations organization, responsible for building and maintaining critical data storage infrastructure components and services that powers core workflows and applications. We also help to define the platform future by establishing the architecture, design patterns for common storage components that set the standard for how Splunk is scaled, optimized, and extended. Our tech stack includes Golang, C++, PostgreSQL