linux / unix systems administrator Jobs in denver, co

21 - 40 of 446 Jobs

Linux L3 Systems Engineer - Infrastructure Security, VP (C13)Job Title - Linux L3 Systems Engineer - Infrastructure Security, VP (C13)

CitiCompany Name - Citi

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Remote or New Castle, Delaware, 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

Linux Administrator - Hybrid - Rhode IslandJob Title - Linux Administrator - Hybrid - Rhode Island

CVS HealthCompany Name - CVS Health

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Remote or Woonsocket, Rhode Island, USA

Full-time

At CVS Health, we're building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care. As the nation's leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues - caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all w

Linux Administrator/Support Desk Analyst - UJMSJob Title - Linux Administrator/Support Desk Analyst - UJMS

GovCIOCompany Name - GovCIO

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Remote

Full-time

Overview GovCIO is currently hiring for a Linux Administrator/Support Desk Analyst (SDA) provides service desk and application and security management services for the Unified Jury Management System (UJMS). The analyst will be required to have troubleshooting, analytical, and decision-making skills to provide support and resolution to end-user issues or questions. The incumbent will provide operational and technical support to resolve software application, security, and technical issues associa

Linux Administrator - Red HatJob Title - Linux Administrator - Red Hat

Convene Inc.Company Name - Convene Inc.

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Remote

Contract

About Convene Inc. Convene, Inc. is a Tampa based, award-winning technology services organization with offices and resources throughout the US, Mexico, and India. We have successful, referenceable customers, competitive benefits, and high-growth opportunities.Linux Administrator - Red Hat Duties will include but not limited to the following: Able to deploy and set up Red Hat Enterprise Linux on physical or virtual servers. Able to implement security policies, managing firewalls, and monitoring

Sr. Backup & Restore Systems Administrator- Onsite in Ft. WorthJob Title - Sr. Backup & Restore Systems Administrator- Onsite in Ft. Worth

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Remote or Fort Worth, Texas, USA

Full-time

Job Description As a Backup and Data Protection Specialist, you will be tasked with the management, configuration, and maintenance of our backup and recovery systems. The backup infrastructure you will be responsible for supports the Development Networks utilized by the Aeronautics business area to develop software for air combat platforms like the F-16, F-22 and F-35. You will ensure data protection and integrity, implement disaster recovery plans, and provide technical support for backup solu

Systems Administrator / SS&C or Advent or similar exp req(remote)Job Title - Systems Administrator / SS&C or Advent or similar exp req(remote)

KelltonCompany Name - Kellton

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Remote

Contract

IT Systems Administration / Wealth Management Client Midtown- Hybrid Long term contract and possible Contract to hire Role Summary Our Wealth Management client is seeking anIT Systems Administration to provide hands-on management of our on-premises IT infrastructure. This is a contract-to-hire position (initial two-year contract) based in New York City with a hybrid work structure. Reporting directly to the Chief Operating Officer (COO), the Director will ensure that all critical systems inclu

Systems Administrator (SME) - 2 Positions - Top Secret Clearance RequiredJob Title - Systems Administrator (SME) - 2 Positions - Top Secret Clearance Required

M & S ConsultingCompany Name - M & S Consulting

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Remote

Full-time

M&S Consulting was conceived in 2002 with the vision of creating highly effective teams of elite consultants to deliver strategic process and technology solutions to enterprise organizations across the US. Our commitment to delivery in complex environments and long-term customer success has merged process and technology into innovative solutions, established deep pockets of expertise, and enabled innovative transformation for evolving businesses. We have intentionally cultivated steady growth fo

Systems Administrator 3Job Title - Systems Administrator 3

Kforce Technology StaffingCompany Name - Kforce Technology Staffing

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Remote or Redmond, Washington, USA

Contract

RESPONSIBILITIES: Kforce has a client that is seeking a highly skilled Systems Administrator 3 in Redmond, WA. Key Responsibilities: * Systems Administrator 3 will maintain, configure, and troubleshoot Ubuntu Linux systems in production and development environments * Administer and manage Perforce (Helix Core) version control, Swarm code review systems, including user management, service configuration via SDP, Helix authentication service (HAS), replication, backups, disaster recovery, and upgr

Satellite Systems EngineerJob Title - Satellite Systems Engineer

CACI International, Inc.Company Name - CACI International, Inc.

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Aurora, Colorado, USA

Full-time

Satellite Systems Engineer Job Category: Intelligence Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Outside Continental US Anticipated Posting End: There is not an anticipated end date for this posting since applications are needed on an ongoing basis. What You'll Get to Do: Join CACI as a Satellite Systems Engineer and work in a high speed resource management position design

Systems Administrator Intern - Summer 2025Job Title - Systems Administrator Intern - Summer 2025

CACI International, Inc.Company Name - CACI International, Inc.

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Remote

Part-time

Systems Administrator Intern - Summer 2025 Job Category: Intern/Co-op Time Type: Part time Minimum Clearance Required to Start: TS/SCI Employee Type: Part-Time On-Call Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: CACI is seeking a motivated and tech-savvy intern to join our Service Desk team on the F3I program. This internship offers a unique opportunity to gain hands-on experience in IT support and systems administration. This position w

Systems Administrator IJob Title - Systems Administrator I

Thermo Fisher ScientificCompany Name - Thermo Fisher Scientific

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Remote or Middleton, Wisconsin, USA

Full-time

Work Schedule Standard (Mon-Fri) Environmental Conditions Adherence to all Good Manufacturing Practices (GMP) Safety Standards, Some degree of PPE (Personal Protective Equipment) required (safety glasses, gowning, gloves, lab coat, ear plugs etc.) Job Description Summarized Purpose: Join Thermo Fisher Scientific Inc. as a Systems Administrator I. Work in a dynamic and innovative environment. Ensure system stability and efficient performance. Impact the success of analytical software and dedi

Systems Administrator IIIJob Title - Systems Administrator III

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Sparks, Nevada, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Systems Administrator , you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system parame

Systems Administrator 2Job Title - Systems Administrator 2

NightwingCompany Name - Nightwing

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Remote or Annapolis, Maryland, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Systems Administrator 3Job Title - Systems Administrator 3

NightwingCompany Name - Nightwing

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Remote or Annapolis, Maryland, USA

Full-time

Site Reliability EngineerJob Title - Site Reliability Engineer

Kforce Technology StaffingCompany Name - Kforce Technology Staffing

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Greenwood Village, Colorado, USA

Contract

RESPONSIBILITIES: Kforce is immediately seeking an experienced Site Reliability Engineer in support of our enterprise telecommunications and mass media client based in Greenwood Village, CO. This role blends technical proficiency with collaboration, delivering impactful contributions to our systems and infrastructure. Responsibilities: * Contributes significantly to planning, implementing, and maintaining system monitoring and observability artifacts for a complex enterprise network * Collabora

System Administrator--Insurance/Policy Admin Systems--REMOTEJob Title - System Administrator--Insurance/Policy Admin Systems--REMOTE

Beacon HillCompany Name - Beacon Hill

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Remote

Contract

Job Title: Systems Administrator - Policy Administration Systems Type: Contract-to-Hire (Temp-to-Hire) Location: 100% Remote (U.S.-based candidates only) Industry: Financial Services - Life, Annuities, Health Insurance Position Overview We are seeking a highly motivated and detail-oriented Systems Administrator to support a blend of mainframe and Java-based applications within our client's Policy Administration Systems domain. This individual will play a key role in the operational support, co

Systems Administrator 3Job Title - Systems Administrator 3

Randstad DigitalCompany Name - Randstad Digital

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Remote or Redmond, Washington, USA

Contract

job summary: We are seeking a highly skilled and motivated Linux System Administrator with at least 5 years of hands-on experience in Linux systems administration and 3 years of Perforce (Helix Core) administration experience. The ideal candidate will also have a strong background in Infrastructure as Code (IaC), particularly using Terraform, to support our growing infrastructure and DevOps initiatives. location: Redmond, Washington job type: Contract salary: $31 - 41 per hour work hours: 8

Site Reliability EngineerJob Title - Site Reliability Engineer

Eliassen GroupCompany Name - Eliassen Group

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Greenwood Village, Colorado, USA

Contract

Description: **Hybrid | Greenwood Village, CO** This engineering role contributes significantly to planning, implementing, and maintaining system monitoring and observability artifacts for a complex enterprise network. Collaborates closely with developers to integrate observability, encompassing APM, NPM, SNMP monitoring, log aggregation, JVM monitoring, and network device monitoring. Contribute to revision control using Git, collaborate on network performance monitoring, automated processes

Systems Administrator IIJob Title - Systems Administrator II

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Remote or Plano, Texas, USA

Full-time

Do you have an eye for detail and a passion for developing innovation solutions? Join our team! As a Systems Administrator II, you will be using your skills and expertise to assist in the analysis, development, and configuration of our existing software and systems that address business requirements and processes. You'll be responsible for evaluating the interface between hardware and software, operational requirements, and characteristics of our systems, establishing and documenting system para

Guidance, Navigation, & Controls Engineer SrJob Title - Guidance, Navigation, & Controls Engineer Sr

Lockheed MartinCompany Name - Lockheed Martin

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Littleton, Colorado, USA

Full-time

Job ID: 686899BR Date posted: Apr. 08, 2025 Description: You will be the Guidance, Navigation, & Controls Engineer Sr for our Integrated Air and Missile Defense (IAMD) team. Our team is responsible for designing and optimizing missile guidance and fire control systems to enhance system performance. What You Will Be Doing As the Guidance, Navigation, & Controls Engineer Sr, you will be responsible for developing and optimizing GNC algorithms, designing missile guidance and fire control algorith