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Information Systems Security Developer

CALIBRE Systems

Salary not specified
Sep 10, 2025
St. Louis, MO, US
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CALIBRE is seeking an Information System Security Developer to design, develop, test, and evaluate information system security throughout the systems development life cycle.

Requirements

  • Designing countermeasures to identified security risks.
  • Designing security controls based on cybersecurity principles and tenets.
  • Designing the integration of hardware and software solutions.
  • Developing and applying security system access controls.
  • Discerning the protection needs (i.e., security controls) of information systems and networks.
  • Evaluating the adequacy of security designs.
  • Conducting audits or reviews of technical systems.

Responsibilities

  • Analyze design constraints, analyze trade-offs and detailed system and security design, and consider life cycle support.
  • Apply security policies to applications that interface with one another, such as Business-to-Business (B2B) applications.
  • Assess the effectiveness of cybersecurity measures utilized by system(s).
  • Assess threats to and vulnerabilities of computer system(s) to develop a security risk profile.
  • Build, test, and modify product prototypes using working models or theoretical models.
  • Conduct Privacy Impact Assessments (PIAs) of the application’s security design for the appropriate security controls, which protect the confidentiality and integrity of Personally Identifiable Information (PII).
  • Design and develop cybersecurity or cybersecurity-enabled products.

Other

  • US citizen
  • Active Top Secret/Sensitive Compartmented Information (TS/SCI) clearance, eligible for Counterintelligence (CI) Polygraph.
  • IAT, IAM, or IASAE Level 3 certification.
  • Bachelor’s degree or higher from an accredited college or university in Computer Science, Cyber Security, Information Technology, Software Engineering, Information Systems, or Computer Engineering degree; or a degree in a Mathematics or Engineering field.
  • Available for possible travel within the Continental United States (CONUS) and Outside CONUS (OCONUS)