New

Principal Systems Engineer

Modern Technology Solutions, Inc.
401(k)
United States, Alabama, Huntsville
May 29, 2026
MTSI is seeking to hire a Principal Systems Engineer 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 missioncritical environment. The ideal candidate combines strong technical depth with the ability to collaborate effectively across multidisciplinary teams and government stakeholders. Key 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, MILSTD, 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 Basic Qualifications: * 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, MILSTD-499, etc.). * Experience with requirements management tools such as DOORS, Jama, or equivalent Preferred Qualifications: * 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. 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.