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Information Systems Security Engineer (ISSE) 102310 with Security Clearance

Information Technology Engineering CorporationAurora, CO🇺🇸United StatesPosted 19 Aug 2026

Quick Overview

Work Type
Hybrid
Schedule
Employee
Level
Mid Senior

Job Description

Information Systems Security Engineer (ISSE) 
Location: Aurora, CO.

Required Clearance: Top Secret/SCI with CI Poly  Since 1999, ITEC has been a powerhouse in supporting mission-critical programs for the DoD and Intelligence community, building a solid reputation along the way. At ITEC, we don’t just care for our employees—we champion them with competitive salaries, an outstanding employee care program, and a benefits package that includes Medical, Dental, Vision, Paid Time Off, and a 401k match.  U.S.

Citizenship Mandatory: Due to our US federal government contract, candidates for this position are required to be a US Citizen and will be subject to a background investigation.

Job Description: The ISSE will join our classified program engineering team in Aurora, CO, supporting a high-priority 24x7 operational system. The ISSE performs core activities to include providing certified services and support for Information Assurance/Program Protection efforts for compliance with governing DoD Cybersecurity directives. This position will support activities of the program to target, assess, and report risks and vulnerabilities of Intelligence Community organization systems to provide senior decision makers with actionable data to make strategic decisions.

The ISSE shall perform, or review, technical security assessments of computing environments to identify points of vulnerability and non-compliance with established Information Assurance (IA) standards, regulations and recommend mitigation strategies. This position is responsible for the maintenance and administration of multiple domains, including a 24/7 operational system and a test facility. Must be willing to occasionally provide after­ hour support to the 24/7 operational system.

Job Responsibilities:

  • Implement Information Assurance (IA) processes, provide guidance, and develop documentation throughout the system development life cycle via the RMF tool in ServiceNOW.
  • Develop, implement, and document formal security policies and System Security Plans (SSP) throughout the program and monitor compliance with these policies during all phases of the Risk Management Framework (RMF) process.
  • Utilize Enterprise Security Services to provide analysis of vulnerabilities and compliance risks in ACAS, Enterprise IT audit logs in ArcSight and Splunk, McAfee Host-Based Security Services (HBSS), User Activity Monitoring (UAM), and Cyber Terrain Mapping (CTM) on 100+ nodes.
  • Monitor Heat Map Score matrix and evaluate cyber risk data, keeping the score at acceptable risk levels for the security categorization of the asset(s) and their Risk Evaluation Lanes (REL).
  • Manage and deliver system authorization and accreditation packages, for 3 assets that span 3 different classification levels.
  • Review and make recommendations on program-level documentation (e.g., requirements specification, system architecture, design documents, test plans, security plans, etc.).
  • Assess/calculate risk based on threats, vulnerabilities, and shortfalls uncovered in routine analyzation of Continuous Monitoring (ConMon) controls and provide those results as Body of Evidence (BoE) to be evaluated in 7, 30, 90 and 365 day increments as the control metrics require.
  • Direct activities required to remediate system-level information security weaknesses tracked via the FISMA (POA&M) process.  Document the elements of the plans, milestones for correcting the weaknesses, and scheduled completion dates for the milestones, periodically reporting remediation progress as necessary.
  • Brief leadership, as needed, on the status of action items and/or results of activities affecting the security posture of the program.
  • Able to collaborate and communicate effectively with other system engineers, system administrators, software developers, and information assurance professionals.

Required Skills:

  • Minimum 5 years' experience, in a security position for the government or government contractor in the Intelligence Community (IC).
  • 10 years’ experience in lieu of formal degree.
  • DoD 8570.01 IAT level 2 or greater cybersecurity certification per DoD 8570.01.
  • Experience in security systems engineering involving Linux and CENTOS operation systems and application solutions in both stand-alone and LAN/WAN configurations.
  • Minimum of 10 years' related experience in Cybersecurity, Systems or Software Engineering, for the government or government contractor, if other than IC position.
  • Experience developing Security Authorization Requirements, performing vulnerability assessments, and implementing threat mitigation updates on embedded systems and products.
  • Experience configuring and hardening COTS components with STIGs.
  • Continuous Monitoring and Network monitoring experience.
  • Experience with product development including architecture, requirements, design, integration and testing.
  • Experience with compliance and implementation of security requirements (i.e. Risk Management Framework and other A&A processes).
  • Experience participating in technical reviews with both external and internal customers.
  • Coordinate with ISSO/ISSM to update POA&M and reflect open vulnerabilities associated with servers and workstations, develop remediation plans to include milestone completion dates and status updates, and include mitigation process for closed vulnerabilities.
  • Participate in Configuration Control Board (CCB).

Desired Skills:

  • Experience using DISA Security Technical Implementation Guides (STIGs).
  • Experience onboarding assets to centrally managed Enterprise solutions.
  • Experience conducting risk analysis on products and system components through review of CVEs, plugins, IAVAs.
  • Experience in conducting software due diligence with COTS/GOTS and proprietary solutions.
  • Positive, self-motivated individual who can complete tasks independently.
  • Experience with multi-level security solutions.
  • Experience working in Systems Engineering on complex embedded systems.
  • CISSP (ISC)²   Required Education (including Major): Bachelor’s Degree in Engineering, or related Science, Technology, Engineering, Mathematics (STEM) degree program.   ITEC is a wholly owned subsidiary of ManpowerGroup Public Sector.

Skills

Embedded Systems
Splunk

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