entry level security administrator Jobs in denver, co

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Information Systems Security Manager (ISSM)

Cymertek Corporation

•

Aurora, Colorado, USA

Full-time

Information Systems Security Manager (ISSM) LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for an experienced and dedicated **Information Systems Security Manager (ISSM)** to join our team and lead efforts to secure and protect our information systems. In this role, you will be responsible for overseeing the security posture of our organization's systems, ensuring compliance with relevant standards, and
Posted 60+ days ago | Updated 4 hours ago

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

Leidos

•

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
Posted 11 days ago | Updated 11 hours ago

ADC Engineer, AWS DBS 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 7 days ago | Updated 13 hours ago

Computer Network Defense Analyst

Realm One

•

Aurora, Colorado, USA

Full-time

RealmOne is FOCUSED on you! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join us on this journey as we execute this new miss
Posted 58 days ago | Updated 4 hours ago

Architecture Engineer (NE II) (Government)

AT&T Inc.

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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 by providing, operating, and assuring critical voice, v
Posted 11 days ago | Updated 4 hours ago

Digital Network Exploitation Analyst

Realm One

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Aurora, Colorado, USA

Full-time

RealmOne is FOCUSED on you! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join us on this journey as we execute this new miss
Posted 58 days ago | Updated 4 hours ago

Top Secret cleared Ground Systems Engineer

ClearBridge Technology Group

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Aurora, Colorado, USA

Contract

Our client, a large government integrator located in Aurora, CO, is looking to hire a Top Secret cleared Ground System Engineer (GSE) for a 12 month contract. The consultant will work onsite to provide real time, operational support to Space Force crews and contractor test teams for the operation and maintenance of system software and equipment (identifying system problems, trouble shooting, and correcting both software and hardware failures). The GSE will perform software maintenance support
Posted 37 days ago | Updated moments ago

Network System Administrator

Cymertek Corporation

•

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
Posted 60+ days ago | Updated 4 hours ago

Principal Platform Cloud Architect (Onsite)

RTX Corporation

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-06-11 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 without Polygraph At Raytheon, the foundation of everything we do is rooted in our values and a higher calling -
Posted 23 days ago | Updated 4 hours ago

Senior Site Reliability Engineer

General Dynamics

•

Aurora, Colorado, USA

Full-time

Basic Qualifications Bachelor's degree in computer science, a related field or equivalent relevant experience is required, plus a minimum of 8 years of relevant experience; or Master's degree, plus 6 years of relevant experience. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the
Posted 33 days ago | Updated 4 hours ago

Senior Network Engineering Lead

TEKsystems c/o Allegis Group

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Aurora, Colorado, USA

Full-time

Description Responsibilities: Support the installation, integration, and testing of Commercial-Off-The-Shelf (COTS) and custom equipment used to further research efforts on superconducting microelectronic devices. Identify, troubleshoot, and remediate equipment issues to support system build-out and sell-off. Support the existing network to maintain connectivity and support large intel distribution Collaborate with the government customer to ensure that requirements and deliverables are met Addi
Posted 7 days ago | Updated moments ago

Site Reliability Engineer

General Dynamics

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Remote or Aurora, Colorado, USA

Full-time

Basic Qualifications Bachelor's degree in Computer Science, a related field or equivalent experience is required plus a minimum of 5 years of relevant experience; or Master's degree plus 3 years of relevant experience. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of
Posted 33 days ago | Updated 4 hours ago

Oracle Database Software Engineer II (Onsite)

RTX Corporation

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-01 Country: United States of America Location: CO106: 16470 East Hughes Drive,Aurora 16470 East Hughes Drive Building S77, 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: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to hel
Posted 2 days ago | Updated 4 hours ago

Infrastructure Engineer - ENG05 - Cleared On-Site

Apex Systems

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Aurora, Colorado, USA

Full-time

Job#: 2078225 Job Description: Principal Platform (Cloud Architect) Engineer Job Summary: The Platform Engineering group is seeking a Principal Platform Engineer / Cloud Architect to ensure the successful delivery of a Private Cloud Infrastructure for one of our premier programs on site. As the Principal Platform Engineer / Cloud Architect, you will be supporting the program as a Sr. technical contributor within a multi-disciplined team through our system modernization efforts to address cloud
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Posted 23 days ago | Updated 4 hours ago

Cloud Infrastructure Engineer

Cymertek Corporation

•

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
Posted 60+ days ago | Updated 4 hours ago

Hybrid Systems Engineer, Sr (Windows / Linux) / Onsite: CO

Lockheed Martin Corporation

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Remote or Littleton, Colorado, USA

Full-time

Job Description Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees work with our partners around the world to bring the latest technology to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries. This Enterprise Operations (EO) position supports the Lockheed Marti
Posted 60+ days ago | Updated 4 hours ago

Sr. Principal Linux System Administrator

Raytheon

•

Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-01 Country: United States of America Location: CO108: 16201 East Centretech Parkway 16201 East Centretech Parkway Building S78, 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 Sr. Principal Linux System Administrator - Aurora, CO, must have an active TS/SCI CI Poly
Posted 6 days ago | Updated 9 hours ago

Network Operations Center (NOC) Designer - Tier 3

CACI International, Inc.

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Denver, Colorado, USA

Full-time

Network Operations Center (NOC) Designer - Tier 3 Job Category: Information Technology 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: Local Anticipated Posting End: There is not an anticipated end date for this posting since applications are needed on an ongoing basis. Team CACI has an exciting and challenging opportunity available for a Network Engineer supporting an Intellig
Posted 24 days ago | Updated 3 hours ago

System Administrator

Cymertek Corporation

•

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,
Posted 60+ days ago | Updated 4 hours ago

Project Engineering Manager

Lockheed Martin Corporation

•

Englewood, Colorado, USA

Full-time

Job Description The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. What is the mission? Fleet Ballistic Missiles (FBM) is one of Lockheed Martin's outstanding Lines of Businesses that prioritizes partnership, integrity, and reliability. The Life Extension 2 team is an organization within the greater FBM program which supports the development of the Next Generation System by develop
Posted 4 days ago | Updated 4 hours ago