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Mission Systems Security Engineer (Platform & Weapon Systems)

Modern Technology Solutions, Inc.
401(k)
Dec 17, 2025
Modern Technology Solutions, Inc. (MTSI) is seeking a highly motivated and experienced Mission Systems Security Engineer to support an advanced air platform program focused on achieving and sustaining national air dominance. As part of MTSI's commitment to delivering innovative engineering services and technology solutions, this role will contribute directly to the security, resilience, and survivability of next-generation weapon and mission systems operating in highly contested environments.
The successful candidate will provide systems engineering expertise across platform and weapon mission systems security, supporting the development, integration, certification, and sustainment of secure mission capabilities critical to the nation's defense.
Responsibilities
The Mission Systems Security Engineer will provide technical leadership and systems engineering support across mission system security disciplines.
Responsibilities include:
  • Provide systems engineering support across all aspects of platform and weapon mission systems security
  • Support the development, integration, test, procurement, and sustainment of secure mission system subsystems within complex weapon systems
  • Provide technical direction and guidance on the application of:
  • Cryptographic units and encryption technologies
  • Cross Domain Solutions (CDS)
  • Anti-tamper and hardware security processes
  • Software assurance and cybersecurity practices
  • Supply chain risk management for air and ground systems
  • Support identification and protection of Critical Program Information (CPI) and development of program protection strategies
  • Ensure mission systems comply with cybersecurity policies, statutes, and industry best practices
  • Support interoperability, communications testing, and certification activities (e.g., AIMS, JITC, NSA)
  • Support the application of Government Reference Architectures (GRAs) and interfaces governing interoperable communications and systems security engineering practices
  • Lead and support Government and industry teams through technical planning, design reviews, test reviews, and technical assessments
  • Develop and deliver technical briefings to a wide range of audiences, including senior technical and leadership stakeholders
  • Collaborate with U.S. Government and industry partner organizations to support joint mission capability development
Qualifications
Required
  • Bachelor's degree in Systems Engineering, Electronics Engineering, Computer Engineering, or a related engineering discipline
  • Experience across platform and weapon mission systems security engineering
  • Experience with cryptographic systems, cross domain solutions, and secure communications technologies
  • Experience supporting system development, integration, test, procurement, and sustainment activities
  • Experience integrating subsystems into complex weapon systems
  • Demonstrated experience integrating Government Reference Architectures (GRAs) into operational weapon systems
  • Strong written and verbal communication skills, including experience briefing technical content to senior leadership
  • Ability to operate effectively in a fast-paced, dynamic, "tip of the spear" environment
  • Strong willingness to learn, execute, and solve complex mission-critical problems
Desired
  • Experience with anti-tamper, hardware security, software assurance, and cybersecurity for air and ground systems
  • Familiarity with supply chain risk management practices for defense systems
  • Experience with interoperability and communications test and certification processes (e.g., AIMS, JITC, NSA)
  • Familiarity with Government Reference Architectures and standards such as AMS GRA, A-GRA, Universal Command and Control Interface (UCI), JREAP, MIL-STD-6016, Risk Management Framework (RMF), NIST cybersecurity standards
  • Familiarity with agile development and systems engineering tools such as Atlassian Suite and Cameo
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  • Interesting Work:



    Our co-workers support some of the most important and critical programs to our national defense and security.






  • Values:



    Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.






  • 100% Employee Owned:



    We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.






  • Great Benefits - Most Full-Time Staff Are Eligible for:





    • Starting PTO accrual of 20 days PTO/year + 10 holidays/year


    • Flexible schedules


    • 6% 401k match with immediate vesting up to $9k annually


    • Semi-annual bonus eligibility (July and December)


    • Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account


    • Up to $10,000 in annual educational reimbursement


    • Other company funded benefits, like life and disability insurance


    • Optional zero deductible Blue Cross/Blue Shield health insurance plan







  • Track Record of Success:



    We have grown every year since our founding in 1993.




Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com

MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.


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