Security Engineer, Systems Security

Saronic · Defense · Austin, TX · Software

Senior Security Engineer responsible for the product security and authorization lifecycle of Saronic's autonomous surface vessels. This role involves hands-on security engineering, threat modeling, risk mitigation, and driving the authorization process to meet evolving regulatory and DoD requirements. The engineer will define security architectures, identify applicable compliance frameworks, and act as a technical representative to government program offices and other stakeholders.

What you'd actually do

  1. Own the security posture for one or more vessel programs from architecture through fielding, serving as the responsible security engineer for the product
  2. Drive threat modeling across vessel subsystems including embedded compute, communications, navigation, propulsion controls, sensor fusion, and C2 interfaces and define security architectures, trust boundaries, and segmentation strategies based on findings
  3. Identify and mitigate security risks unique to autonomous maritime platforms, including GPS/GNSS spoofing, RF interference, sensor manipulation, supply chain compromise, and physical access threats
  4. Own the end-to-end authorization lifecycle for vessel programs, from initial security planning through ATO or equivalent customer authorization milestones
  5. Navigate DoD cybersecurity authorization frameworks including RMF, CSRMC, and service-specific requirements across Navy, Coast Guard, Marine Corps, and joint programs

Skills

Required

  • 6+ years of hands-on experience in product security, systems security engineering, authorization engineering, or a closely related security engineering role for defense or high-assurance platforms
  • Strong understanding of DoD cybersecurity authorization processes (RMF, ATO/IATT, CSRMC, continuous ATO) with experience contributing to or driving systems through authorization
  • Working knowledge of NIST SP 800-53, NIST SP 800-171, and CMMC 2.0 and their application to weapons systems, autonomous platforms, or similarly complex defense products
  • Experience with threat modeling, security architecture, or risk assessment for cyber-physical systems, embedded systems, or operational technology environments
  • Strong technical foundation, able to read architecture diagrams, evaluate security controls at a systems level, and hold credible technical conversations with hardware, software, and cloud engineers
  • Ability to clearly communicate with both technical and non-technical stakeholders, including production of security documentation and authorization artifacts
  • Ownership mindset with the ability to operate in ambiguity, define the path forward, and move work to completion across teams
  • Ability to obtain and maintain a security clearance

Nice to have

  • Experience as a product security lead, systems security engineer, or authorization lead for a defense platform or program of record
  • Direct experience engaging with government Authorizing Officials, program offices, or DOT&E as a technical security representative
  • Experience in defense technology startups, DARPA programs, or organizations that move at speed within the defense acquisition system
  • Familiarity with maritime-specific frameworks including IMO MASS Code, IACS UR E26/E27, IEC 62443, or classification society autonomous vessel rules
  • Understanding of autonomous systems security challenges including communications security, electronic warfare hardening, GPS/GNSS resilience, and AI/ML system security
  • Experience with ITAR/EAR compliance, supply chain security, or manufacturing security for defense products
  • Familiarity with the defense acquisition lifecycle and how authorization milestones integrate into program schedules

What the JD emphasized

  • DoD authorization processes are evolving
  • commercial maritime regulators are still drafting the MASS Code
  • classification societies are issuing their first autonomous vessel certifications
  • Where standards don't yet exist, you'll define them
  • DoD cybersecurity authorization frameworks
  • NIST SP 800-53
  • NIST SP 800-171
  • CMMC 2.0
  • FedRAMP
  • IEC 62443
  • IMO MASS Code
  • IACS UR E26/E27