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ISSE, Senior

Navstar Inc.
Annapolis Junction, Maryland, United Statesfull_timeVerifiedPosted 18 May 2026
💰 $190,000/yr($155,000/yr$190,000/yr)

About the role

Would you like to perform rewarding work while contributing to the success of an established, growing company? Navstar is an award-winning organization that has a proven track record of successfully providing IT services and solutions both as a prime and sub-contractor on mission focused IT programs. Our employees are integral players in support of mission-critical programs focused on our National Security.

Role Description:

This position requires a solid understanding of security practices and policies as well as hands-on vulnerability testing experience. The selected candidate will have numerous responsibilities from day to day drawn from a wide array of activities. The strongest candidates will have experience working in these areas:

  • Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components.
  • Identifying and implementing appropriate information security architectures and functionality to ensure uniform application of security policy and enterprise solutions.
  • Recommending and developing technical solutions, products, and standards based on current and desired system security architecture.
  • Assessing and mitigating system security threats and risks throughout the program life cycle.
  • Leading and/or contributing to the security planning, assessment, risk analysis, risk management, certification and awareness activities for various system and networking operations.
  • Effectively collaborating with other internal technical experts on a day-to-day basis.
  • Communicating with Program Managers and POCs from customer organizations when necessary regarding Security issues of significant importance.
  • Participating in program increment planning and related agile team activities.  
  • Working closely with System Engineering, Test Engineering, and Integration teams to ensure that the hardware and software architecture and implementation meets the security requirements for processing classified information.
  • Analyzing and assessing system implementation against multiple security compliance policies and recommending and implementing enhancements.
  • Evaluating the impact of new development on the operational security posture of the system.
  • Evaluating, reviewing, and testing security-critical software.
  • Proposing, assessing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies.
  • Auditing and assessing system security configuration settings using common methodologies and tools.
  • Managing and enforcing security strategies and policies that effect various components of the geographically distributed systems.
  • Evaluating security solutions to ensure they meet customer specified requirements for processing classified information.
  • Providing configuration management for security-relevant information system software.
  • Serving as a subject matter expert in security architecture to include providing advice to Program Managers, Customer technical experts, and internal program teams.
  • Formulating security compliance requirements for new system features.
  • Identifying and remediating security issues throughout the system.
  • Supporting risk assessment, risk management, security control assessment, continuous monitoring, service design, and other IA program support functions.
  • Working with development teams to enrich team-wide understanding of different types of vulnerabilities, attack vectors and remediation approaches.
  • Planning and conducting security verification testing of relevant type 1 devices.

Required Skills and Qualifications:

  • To be eligible for this position you must hold an active TS/SCI clearance with Polygraph.
  • Must have a solid understanding of security practices and policies and hands-on vulnerability testing experience.
  • Must have experience applying Risk Management Framework.
  • Must have experience formulating and assessing IT security policy.
  • Must have demonstrated knowledge of and experience with common security tools, such as Nessus, NMAP and Wireshark hardware/software security implementation, communication protocol, encryption techniques/tools, and web services.
  • Must have exper

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Company

Navstar Inc.

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