More jobs:
Information System Security Engineer
Job in
Denver, Denver County, Colorado, 80285, USA
Listed on 2026-06-18
Listing for:
CACI International Inc.
Full Time
position Listed on 2026-06-18
Job specializations:
-
IT/Tech
Cybersecurity, Systems Engineer -
Engineering
Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Job Title:
Information System Security Engineer Job Category:
Engineering 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:
Continental US Anticipated Posting End: 1/1/2100
This position will provide Information Assurance support for various information systems throughout the system development lifecycle. Our ISSE must be comfortable with providing customer and program teams with input as to how to meet various security requirements.
What You’ll Get to Do:
Navigating projects through the RMF process to achieve IATT and ATOWriting NIST 800-53 responses to security controls, including inherited, shared, or systems level controls
Providing technical guidance regarding the system’s Assessment and Authorization (A&A) process
Participating in security testing and assessments
Prepare, Present, and Maintain all security related documentation for system including, but not limited to, system security plan, body of evidence, Plan of Action and Milestones (POAM), and Certification and Accreditation (C&A) documentation leveraging online record keeping systems
Identifying missing, inaccurate, or duplicate data Establishing and maintaining strong relationships with the organization’s Information Systems Security Managers (ISSM) and seeking guidance for approval, as needed
Working with the team to mitigate the risk elements (POAMs) identified during assessment and seeking validation from enterprise security depending on level of risk element
Facilitating and attending Technical Exchange Meetings (TEMs) with engineers and other partners to gather requirements for project registration and control implementation
Supporting weekly and ad hoc reporting requirements
Preparing and presenting briefing material
Qualifications:
Required:
Typically requires bachelor's degree or equivalent and 5 plus years of directly related experience
Minimum of 5 years ISSE /System Engineering experience, or directly related.
Experience with implementing NIST 800-53 controls/ICD 503
Knowledge of the NRO environment and the Xacta 360 tool to navigate projects through the RMF process to achieve IATT & ATOExperience participating in Assessment and Authorization (A&A) process
Experience preparing systems security documentation (e.g., security plans, risk assessment reports, Plan of Actions and Milestones (POA&Ms), etc.)Experience with Continuous Monitoring, mitigating scan findings, maintaining network cut sheets/PPS sheets
Experience with system integration and hardening in the NRO cloud environment
Experience working with engineers and system administrators to correct scan findings / system vulnerabilities
Must have a current and active TS/SCI with CI Polygraph to begin employment
Must have current Security+ Certification or another DoD 8570 Complaint IA Certification, or ability to obtain immediately upon hiring
Vulnerability assessment scanning experience (Security Center/NESSUS)
Desired:
Information Systems Security Officer (ISSO) knowledge and/or experience
Experience with developing test plans for information systems
Demonstrated experience with Linux (Red Hat)
Experience with Dev Sec Ops Familiarity with code quality and code analyzing security tools
Experience with Amazon Web Services (AWS):
Should have current or ability to obtain an Amazon Cloud certification, such as AWS Certified Solutions Architect – Associate or AWS Certified Security Specialty Audit log review: ability to query and perform analysis in Netwitness, Splunk, etcWhat You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on…
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