Principal Systems Engineer

Modern Technology Solutions IncHuntsville, AL

About The Position

MTSI is seeking to hire a Principal Systems Engineer who will provide advanced systems engineering expertise in support of Army PAE M&S Programs. This role involves leading the design, integration, analysis, and lifecycle management of complex systems within a mission‑critical environment. The ideal candidate combines strong technical depth with the ability to collaborate effectively across multidisciplinary teams and government stakeholders.

Requirements

  • US citizenship and an active Top Secret level security clearance is required.
  • Bachelor’s degree in systems engineering, Electrical Engineering, Mechanical Engineering, Computer Engineering, or related technical discipline
  • 10+ years of systems engineering experience supporting DoD programs
  • Experience supporting Army PEO Missiles & Space, PEO Aviation, Air Force International Affairs, or Navy International Programs.
  • Strong understanding of systems engineering principles, methodologies, and frameworks (INCOSE, IEEE, MIL‑STD-499, etc.).
  • Experience with requirements management tools such as DOORS, Jama, or equivalent

Nice To Haves

  • Master’s degree in a relevant technical discipline
  • Active Top Secret/SCI clearance
  • Experience working on weapon systems, command and control systems, space systems, aviation platforms, or other major defense acquisition programs
  • Knowledge of DoD acquisition lifecycle, technical reviews, and documentation
  • Familiarity with Agile development, DevSecOps environments, or digital engineering practices
  • Experience with model-based systems engineering (MBSE) tools/methods (Cameo, Rhapsody, SysML) preferred.

Responsibilities

  • Lead systems engineering activities, including requirements development, functional analysis, system architecture, and design reviews
  • Develop, evaluate, and manage system specifications, interface control documents (ICDs), and technical baselines
  • Support system integration, test planning, verification, and validation throughout the system lifecycle
  • Conduct trade studies, risk assessments, and technical evaluations to inform program decisions
  • Provide technical leadership and mentorship to junior engineers
  • Prepare and deliver technical briefings, reports, and documentation to program leadership and government customers
  • Ensure compliance with DoD, MIL‑STD, and program-specific engineering processes
  • Collaborate with cross-functional teams such as software, hardware, cybersecurity, logistics, and program management
  • Support acquisition activities including requirements decomposition, system readiness reviews, and technical proposals
  • Interface with end users, contractors, and government stakeholders to ensure system performance meets operational needs
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