IT Security Administrator Jobs in Denver, CO

1 - 20 of 391 Jobs

Sr Staff Systems Administrator Security and CompJob Title - Sr Staff Systems Administrator Security and Comp

Judge Group, Inc.Company Name - Judge Group, Inc.

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Arvada, Colorado, USA

Full-time

Location: Arvada, CO Salary: $65.00 USD Hourly - $78.00 USD Hourly Description: Our client is currently seeking a Sr Systems Administrator with deep expertise in Security & Compliance Hardening to support the implementation of CIS Benchmarks and CMMC Level 2 controls across AWS-hosted RHEL8, RHEL9, and Rocky9 environments. This role focuses on designing, building, and maintaining hardened AMIs to meet the stringent security and compliance requirements of government and defense workloads. T

IT Systems Administrator IIJob Title - IT Systems Administrator II

SNI TechnologyCompany Name - SNI Technology

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Thornton, Colorado, USA

Full-time

Job Details SNI Technology's top client located in Thornton, CO is immediately seeking to hire a talented IT Systems Administrator II for an exciting full-time, permanent position. Please note this position is primarily an onsite position (i.e., 4 days in-office per week) with the ability to work remotely (i.e., 1 day work from home per week). Fully remote work is not available for this position. IT SYSTEMS ADMINSTRATOR II SNI Technology's client is looking for an IT Systems Administrator II to

IT Network/Systems Administrator IJob Title - IT Network/Systems Administrator I

SNI TechnologyCompany Name - SNI Technology

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Thornton, Colorado, USA

Full-time

Job Details SNI Technology's top client located in Thornton, CO is immediately seeking to hire a talented IT Network/Systems Administrator I for an exciting full-time, permanent position. Please note this position is primarily an onsite position (i.e., 4 days in-office per week) with the ability to work remotely (i.e., 1 day work from home per week). Fully remote work is not available for this position. IT NETWORK/SYSTEMS ADMINSTRATOR I SNI Technology's client is looking for an IT Network/Syste

Systems Administrator II, IT InfrastructureJob Title - Systems Administrator II, IT Infrastructure

tax.comCompany Name - tax.com

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Remote or Manila, Metro Manila, Philippines

Full-time

Why Ryan? Flexible Work EnvironmentAward-Winning CultureWorld-Class Benefits and CompensationAccelerated Career PathCommunity OutreachMentorship OpportunitiesWellness-Centric Benefits The Systems Administrator II maintains and manages server computing and storage platforms, including, but not limited to, installation, configuration, preventive maintenance, operation, and problem-resolution activities. Duties and Responsibilities, as they align to Ryan's Key Results People: Create a positive te

Network Security EngineerJob Title - Network Security Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Network Security Engineer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and passionate Network Security Engineer to join our team and play a critical role in safeguarding our organization's digital infrastructure. In this position, you will design, implement, and maintain robust security measures to protect networks, systems, and data from cyber threats. You'll work closely with cross-functio

Systems Security Engineer IIIJob Title - Systems Security Engineer III

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Lone Tree, Colorado, USA

Full-time

Are you looking for an opportunity to deepen your IT skills in a meaningful work environment that supports and protects explorers and heroes? Join our team! As a Systems Security Engineer , you will be using your skills and expertise to design, test, and implement our secure operating systems, networks, security monitoring, and tuning. You'll be responsible for the management of our IT security systems and applications, incident response, digital forensics, loss prevention, and eDiscovery action

Telecommunications EngineerJob Title - Telecommunications Engineer

SAICCompany Name - SAIC

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Aurora, Colorado, USA

Full-time

Job ID: 2504972 Location: AURORA, CO, US Date Posted: 2025-04-23 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 25 % of the Time Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description JOB DESCRIPTION: SAIC is seeking a long-haul fiber Telecommunications Engineer in Aurora, CO area to support a government customer. The successful candidate will

System Security Engineer IIIJob Title - System Security Engineer III

Sierra Nevada CorporationCompany Name - Sierra Nevada Corporation

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Lone Tree, Colorado, USA

Full-time

Senior System Admin with expertise in Security & Compliance HardeningJob Title - Senior System Admin with expertise in Security & Compliance Hardening

Stellent IT LLCCompany Name - Stellent IT LLC

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Westminster, Colorado, USA

Contract, Third Party

Job Title:- Senior Systems Administrator with expertise in Security & Compliance Hardening Location:- Westminster, CO (Hybrid) W2 Job Overview We are seeking a Senior Systems Administrator with expertise in Security & Compliance Hardening to assist with the implementation of CIS Hardening and CMMC controls across AWS-hosted RHEL8, RHEL9, and Rocky9 implementations. This contract role centers on designing, building, and maintaining hardened AMIs that meet the rigorous security and compliance d

System AdministratorJob Title - System Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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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,

Technical Writer / Remote (Denver, CO) ,3 Months ContractJob Title - Technical Writer / Remote (Denver, CO) ,3 Months Contract

Suncap TechnologyCompany Name - Suncap Technology

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Remote or Denver, Colorado, USA

Contract

Technical Writer Location: Remote (Denver, CO Must be locals to CO) Duration: 3 Months Contract Technical Writer Statement of Work: Documentation 70% This position assists in providing documentation to support the Server Administration and Sustainment Utilize available enterprise tools documenting processes. Consolidate all documentation and store in a Service Now Review existing documentation and review structure and update Monitor and follow up Procedures Create SOPs, Guidelines, How-To docume

System Administrator Associate_TS/SCI with PolygraphJob Title - System Administrator Associate_TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Aurora, Colorado, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Hardware Support, Information Technology (IT) Infrastructure, Technical Support, Troubleshooting Certifications: None Experience: 0 + years of related experience ship Required: Yes Job Description: Transform technology into opportu

System Administrator Associate_TS/SCI with PolygraphJob Title - System Administrator Associate_TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Aurora, Colorado, USA

Full-time

IT Computer System AnalystJob Title - IT Computer System Analyst

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Littleton, Colorado, USA

Full-time

Job Description This position within Lockheed Martin Enterprise Operations supports the LM Space Site Delivery Services organization. This position will be onsite at one of our campuses in Colorado. This position has multiple responsibilities to stretch across IT disciplines including IT hardware asset inventory/management, security compliance assessment and remediation, hardware and software troubleshooting, root cause analysis, resolution and optimization. The selected candidate will have han

System AdministratorJob Title - System Administrator

KyndrylCompany Name - Kyndryl

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Remote or Chicago, Illinois, USA

Full-time

Who We Are At Kyndryl, we design, build, manage and modernize the mission-critical technology systems that the world depends on every day. So why work at Kyndryl? We are always moving forward - always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities. The Role As a System Administrator at Kyndryl, you'll solve complex problems and identify potential future issues across the spectrum of platforms and s

Cloud Infrastructure EngineerJob Title - Cloud Infrastructure Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Cloud Infrastructure Engineer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and innovative Cloud Infrastructure Engineer to join our team and play a key role in designing, implementing, and optimizing our cloud environments. In this role, you will ensure the scalability, reliability, and security of cloud-based systems while collaborating with cross-functional teams to support critical busine

Network System AdministratorJob Title - Network System Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Aurora, Colorado, USA

Full-time

Network System Administrator LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and detail-oriented Network Systems Administrator to join our team and oversee the design, implementation, and maintenance of our network and system infrastructure. In this role, you will ensure the reliability, security, and efficiency of both network operations and system performance. Collaborating with a team

Systems Administrator Technician _TS/SCI with PolygraphJob Title - Systems Administrator Technician _TS/SCI with Polygraph

General DynamicsCompany Name - General Dynamics

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Aurora, Colorado, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Hardware, Information Systems, Information Technology (IT) Systems Certifications: None Experience: 1 + years of related experience ship Required: Yes Job Description: We are GDIT. The people supporting and securing some o

Systems Administrator Technician _TS/SCI with PolygraphJob Title - Systems Administrator Technician _TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Aurora, Colorado, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Hardware, Information Systems, Information Technology (IT) Systems Certifications: CompTIA - Security+ CE - CompTIA Experience: 1 + years of related experience ship Required: Yes Job Description: We are GDIT. The people su

Systems Administrator Technician _TS/SCI with PolygraphJob Title - Systems Administrator Technician _TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Aurora, Colorado, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Hardware, Information Systems, Information Technology (IT) Systems Certifications: CompTIA - Security+ CE - CompTIA Experience: 1 + years of related experience ship Required: Yes Job Description: We are GDIT. The people sup