New

Senior Principal Mechanical Engineer

Modern Technology Solutions, Inc.
401(k)

Jun 30, 2026
MTSI is seeking a Senior Principal Mechanical Engineer to support development, integration and test of a large commercial derivative aircraft for use by national leadership personnel.The individual will support day-to-day tasks focused on design, development, and test of mechanical systems to include Environmental Control Systems, Fire Protection and Auxiliary Power Units.The individual will provide advice and recommendations on Airworthiness Compliance, risk identification and risk mitigation.The individual will apply MIL-HDBK-516 criteria to subsystem design and test, have a working knowledge of military airworthiness process, understand and apply compliance mapping and provide systems engineering evaluation, verification and validation of subsystems. The individual will support weapon system acquisition processes such as System Requirements Reviews (SRR), Preliminary and Critical Design Reviews (PDR/CDR), Test Readiness Reviews (TRR), Function and Physical Compliance Assessments (FCA/PCA), and Programmatic Management Reviews (PMR).The individual will work primarily on-base at WPAFB OH with some hybrid work. How you will contribute to our National Security and Defense mission: Supporting the developmental, integration and testing of one of the USAF's highest priority platforms. You'll be a great fit for this role if: Self-motivated with a mission comes first work ethic Have excellent communications skills Detail oriented Passionate about supporting our warfighters Responsibilities: Your essential job functions will include but may not be limited to: Provide engineering design, integrations, test and requirements verification to Air Vehicle Subsystems to include Environmental Control Systems (ECS), Fire protection, Auxiliary Power Units (APU). Provide test planning and data analysis. Provide sustainment operations planning. Support FAA and Air Force certification processes execution. Review engineering change notices/proposals, contract modifications and program risks and develop solutions. Support Airworthiness & Compliance process by applying in MIL-HDBK-516C criteria, military airworthiness processes, compliance mapping, and System-Subsystem Requirements Analysis development. Review engineering change notices/proposals, contract modifications, and program risks. Apply Systems Engineering processes and conduct trade-off assessments, translate requirements into system specifications, and support design/test activities. Provide Documentation and Reviews by preparing and/or reviewing technical evaluations, engineering studies, acquisition strategies, Request for Proposals, test plans and Requirement Verification Support Integrated Product Team by actively participating in project meetings and reviews (SRR, PDR, CDR, TRR, FCA, PCA, PMR, etc.). Provide system/subsystem performance analysis through assessments of cost, life cycle, maintainability, reliability, risk, and scheduling trade-offs. Apply regulatory knowledge of FARs, NPRMs, ADs, and AMOCs for certification and compliance. Apply Systems Engineering process to conduct trade-off assessments, translate requirements into system specifications, and support design/test activities. Education:* 15 years relevant experience with Bachelors in related field; 13 years relevant experience with Masters in related field; 10 years relevant experience with PhD or Juris Doctorate in related field. Even better if you have these desired skills:* Experience with commercial derivative aircraft and USAF ACAT 1 programs Clearance Requirements:* Must possess an active SECRET clearance with the ability to obtain a TOP SECRET clearance. #MTSI #LI-MS1 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.