Senior IT Security Architect Jobs in Denver, CO

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Tier III O&M (Network Engineer Level III) (Government)

AT&T Inc.

•

Centennial, Colorado, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. Our National Security Team supports the intelligence community, providing, operating, and assuring critical voice, video
Posted 60+ days ago | Updated 4 hours ago

Data Center Operations Engineer - TS/SCI with Polygraph required

General Dynamics

•

Aurora, Colorado, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: Database Analysis/Design Job Qualifications: Skills: Computer Networking, Data Center, Troubleshooting Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal impact as a Data Center Operations Engineer supporting cus
Posted 60+ days ago | Updated 4 hours ago

Data Warehouse Engineer

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

Data Warehouse Engineer 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 detail-oriented and innovative Data Warehouse Engineer to join our team and help design, build, and maintain high-performance data warehousing solutions. In this role, you will collaborate with cross-functional teams to structure and optimize large-scale data environments, ensuring efficient data integration, storage, and acces
Posted 60+ days ago | Updated 4 hours ago

Cloud Big Data Software Engineer

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

Cloud Big Data Software 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 Cloud Big Data Software Engineer to join our team and play a pivotal role in designing and developing cloud-based big data solutions. In this role, you will work with cutting-edge technologies to build scalable systems capable of handling large volumes of data, enabling businesses to derive valuable insights. The i
Posted 60+ days ago | Updated 4 hours ago

Director Technology - AI

Sierra Nevada Corporation

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Lone Tree, Colorado, USA

Full-time

As Director Technology, you will provide strategic leadership and oversight for the development and implementation of our technology roadmaps. You'll collaborate with program leadership (Directors and Chief engineers) and the business development team to create business strategies, engage with customers and business partners to align roadmaps and develop relationships to foster collaborations that will enable profitable growth. You'll support the delivery of new product development goals, optimi
Posted 55 days ago | Updated 4 hours ago

W2 role-System Administrator - M365 Architect Westminster, CO (Hybrid)

Stellent IT LLC

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Westminster, Colorado, USA

Third Party, Contract

W2 role- System Administrator - M365 Architect Location: Westminster, CO (Hybrid) Mode of Interview: Virtual Job Description: Our client is currently seeking a System Administrator - M365 Architect JOB DESCRIPTION We are looking for someone to help configure our M365 GCC-High tenant for end point security and external collaboration. Required Skills: Expert in securing an M365 tenant, specializing in external collaboration Expert in Conditional Access Policies and how they affect BYOD, Share
Easy Apply
Posted 21 days ago | Updated 4 hours ago

Principal Systems Engineer - Reliability & Maintainability Engineer

Sierra Nevada Corporation

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Remote or Lone Tree, Colorado, USA

Full-time

If you like solving complex engineering problems using your analytical skills, this is the opportunity for you! As a Reliability and Maintainability Engineer, you will perform detailed analysis to establish reliability predictions, monitor equipment data for continuous validation of reliability predictions, and author reports summarizing your analysis. As a cross-functional engineer, you are in charge of system-level ownership of new products and processes through the product life cycle. This in
Posted 60+ days ago | Updated 4 hours ago

System Engineer

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

System Engineer 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 dynamic and detail-oriented System Engineer to join our team and contribute to the design, implementation, and maintenance of complex systems. In this role, you will work to ensure that system components function seamlessly together while meeting performance, security, and reliability standards. The ideal candidate excels in troublesho
Posted 60+ days ago | Updated 4 hours ago

SIGINT Systems Engineer

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

SIGINT Systems 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 dedicated and innovative SIGINT Systems Engineer to join our team and contribute to the design, development, and optimization of advanced Signals Intelligence (SIGINT) systems. In this role, you will work on creating and integrating system architectures, troubleshooting complex issues, and ensuring the efficiency and reliability of
Posted 60+ days ago | Updated 4 hours ago

Systems Administrator

General Dynamics

•

Aurora, Colorado, USA

Full-time

This is an unpaid fellowship through the Department of Defense (DoD) SkillBridge Program. The fellow selected for this role will not receive compensation or benefits from GDIT and will not be an employee, agent or contractor of GDIT but rather will remain an employee of the DoD and will receive compensation and benefits through the DoD. Type of Requisition: Regular Clearance Level Must Currently Posses: Top Secret SCI + Polygraph Clearance Level Must Be Able To Obtain: Top Secret SCI + Polygr
Posted 60+ days ago | Updated 4 hours ago

Sr. Integration Systems Engineer

Parsons Services Company

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Boulder, Colorado, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Our Space Operations directorate is passionate about making America the undisputed l
Posted 34 days ago | Updated 4 hours ago

Infrastructure SME with Cisco certified

Corus Consulting

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Remote

Contract, Third Party

Corus is looking for Infrastructure SME We are looking for a Infrastructure SME to lead the planning, execution, and delivery projects related to monitoring improvements, specially for critical applications (Murex, Darwin, Risk applications). The skills would be: Must Skills: - Previous experience on Observability projects and tools. - Infrastructure projects management experience (DR, obsolescence, hardening, Security, monitoring, Vulnerability/patching/hardening) - Technical background is requ
Easy Apply
Posted 9 days ago | Updated 3 days ago

Sr Lead, DevSec Ops - Wealth & Asset Management

Northern Trust

•

Remote or Chicago, Illinois, USA

Full-time

About Northern Trust: Northern Trust, a Fortune 500 company, is a globally recognized, award-winning financial institution that has been in continuous operation since 1889. Northern Trust is proud to provide innovative financial services and guidance to the world's most successful individuals, families, and institutions by remaining true to our enduring principles of service, expertise, and integrity. With more than 130 years of financial experience and over 22,000 partners, we serve the world'
Posted 60+ days ago | Updated 4 hours ago

Principal Cybersecurity Engineer (HP NonStop/Xypro)

Discover

•

Remote or Houston, Texas, USA

Full-time

Discover. A brighter future. With us, you'll do meaningful work from Day 1. Our collaborative culture is built on three core behaviors: We Play to Win, We Get Better Every Day & We Succeed Together. And we mean it - we want you to grow and make a difference at one of the world's leading digital banking and payments companies. We value what makes you unique so that you have an opportunity to shine. Come build your future, while being the reason millions of people find a brighter financial future
Posted 10 hours ago

Principal Cybersecurity Engineer (HP NonStop/Xypro)

Discover

•

Remote or Riverwoods, Illinois, USA

Full-time

Discover. A brighter future. With us, you'll do meaningful work from Day 1. Our collaborative culture is built on three core behaviors: We Play to Win, We Get Better Every Day & We Succeed Together. And we mean it - we want you to grow and make a difference at one of the world's leading digital banking and payments companies. We value what makes you unique so that you have an opportunity to shine. Come build your future, while being the reason millions of people find a brighter financial future
Posted 10 hours ago

Cable and Harness ElectroMechanical Engineer II

Lockheed Martin Corporation

•

Littleton, Colorado, USA

Full-time

Job Description Join us at Lockheed Martin as an ElectroMechanical Engineer where you will be responsible for product design, development, and production support for the Cable and Interconnects team on the Fleet Ballistic Missile (FBM) Program. Location: This position does not support teleworking; the preferred candidate will be located near our Lockheed Martin Space facility one of the Coolest places to work: Englewood CO or Littleton CO , and be expected to work in the office. What does this
Posted 36 days ago | Updated 4 hours ago

Systems Development Engineer II, ADC Analytics

Amazon Development Center U.S., Inc.

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Denver, Colorado, USA

Full-time

The Analytics ADC team is at the forefront of delivering AWS Analytics cloud services to our customers in isolated, air-gapped cloud environments. We are dedicated to pushing the boundaries of what is possible in this rapidly evolving field, leveraging the power of cloud computing and the latest advancements in data technologies. With a focus on expanding Analytics services across air-gapped cloud regions, driving automation investments, and delivering open-source solutions, we are at the forefr
Posted 36 days ago | Updated moments ago

Principal Platform Engineer / Linux (Onsite)

RTX Corporation

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-06-12 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, 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 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to
Posted 45 days ago | Updated 4 hours ago

Senior Platform Engineer (Onsite)

RTX Corporation

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-05-30 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, 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 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to
Posted 53 days ago | Updated 4 hours ago

Principal Platform Engineer / Scrum Master (Onsite)

RTX Corporation

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-06-12 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, 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 - Current At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help
Posted 45 days ago | Updated 4 hours ago