US-CO-Denver On-site Full-time USD 154,000 – 192,000 / year

Entarian is hiring an Information Systems Security Engineer (ISSE)

Responsibilities

  • Incorporate cybersecurity requirements into system architecture, design documents, interface specifications, and technical records across all phases of the system lifecycle.
  • Design, deploy, and verify security controls aligned with NIST RMF, NIST SP 800-53, CNSSI 1253, Department of Defense directives, and internal cybersecurity policies.
  • Conduct technical security evaluations such as architecture reviews, vulnerability scans, threat modeling, risk assessments, attack surface analysis, and mitigation strategy development.
  • Engage in system design reviews, engineering meetings, technical discussions, and configuration management to embed cybersecurity requirements early in development.
  • Create and update cybersecurity documentation, including System Security Plan content, control implementation details, security architecture visuals, data and network diagrams, interface specs, and engineering analyses.
  • Assist in producing Security Assessment Plans, Security Assessment Reports, Plans of Action and Milestones, continuous monitoring records, and other artifacts for system authorization.
  • Detect cybersecurity deficiencies, architectural flaws, and technical risks, and formulate effective engineering solutions to strengthen security posture.
  • Work with systems engineers, software developers, network specialists, cloud engineers, system administrators, and mission stakeholders to define and enforce secure configuration baselines.
  • Assess proposed changes to systems, software releases, new technologies, and architectural updates for cybersecurity impact and re-accreditation needs.
  • Support vulnerability management by analyzing scan outputs, prioritizing findings, planning remediation, and verifying fixes.
  • Take part in integration, testing, verification, validation, and accreditation efforts to confirm security controls operate as designed.
  • Support continuous monitoring by evaluating control performance, tracking security status, and suggesting enhancements to sustain compliance.
  • Ensure secure integration of Commercial Off-the-Shelf, Government Off-the-Shelf, open-source, cloud-based, and custom-built technologies.
  • Deliver technical cybersecurity guidance to engineering teams on secure design principles, layered defenses, Zero Trust frameworks, and industry best practices.
  • Produce technical reports, engineering recommendations, risk analyses, and executive summaries for leadership and government decision-makers.

Compensation

Not specified

Work Arrangement

Not specified

Team

Not specified

Not specified

About company
Entarian

Entarian is a fully diversified engineering and federal technology solutions firm with broad reach into space, civilian, and defense markets.

At Entarian, we deliver science, engineering, and technology solutions across the full spectrum of defense and federal civilian missions. In every system, network, and environment, we ensure the actionable insight and secure infrastructure to keep operations running and decisions moving.

Our core strength—integrating space systems, data, and mission and enterprise environments—is a key differentiator. By enabling large-scale data analysis, modeling, and dissemination of actionable insight from the enterprise to the tactical edge, we support time-critical decision-making across complex defense and federal civilian missions.

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Job Details
Category security
Posted 3 hours ago