Senior Engineer Jobs in Princeton, MN (NOW HIRING)

Sr. Engineer – Ammunition SystemsMSM North America is scaling its operations and expanding its presence in the U.S. defense industry, bringing deep expertise in ammunition and defense capabilities to support the evolving needs of the U.S. Department of Defense. As we continue to grow our North American operations, we are seeking talented, experienced professionals who share our commitment to mission, quality, innovation, and operational excellence.Position SummaryThe Senior Engineer – Ammunition Systems serves as a technical lead responsible for complex engineering activities supporting the design, development, qualification, and sustainment of ammunition products. This role provides technical ownership of assigned engineering tasks, leads problem-solving efforts, and ensures technical solutions meet performance, safety, and regulatory requirements.The Senior Engineer operates with a high degree of autonomy and is expected to guide technical decision-making, mentor junior engineers, and support cross-functional teams throughout the product lifecycle. Key ResponsibilitiesTechnical Ownership & Engineering LeadershipLead engineering efforts for ammunition equipment, components, or product improvementsProvide technical direction on complex engineering challenges and design decisions.Serve as the responsible engineer for assigned technical areas or products.Lead design reviews and technical risk assessments.Product Development & Lifecycle ManagementLead design, analysis, and validation activities for ammunition products and equipment.Evaluate design changes, performance improvements, and manufacturing impacts.Ensure engineering solutions meet technical requirements, safety standards, and regulatory constraints.Support transition of new designs from development to production.Testing & Technical Problem ResolutionPlan and lead engineering testing, and qualification activities.Oversee the installation, testing, and commissioning of ammunition equipment.Analyze test results and lead root cause investigations for technical issues.Implement corrective actions and design improvements to resolve performance challenges.Manufacturing & Production Engineering SupportProvide senior-level engineering support for complex production issues.Evaluate manufacturing processes for technical risk and improvement opportunities.Support continuous improvement efforts to enhance product performance and production efficiency.Configuration & Documentation GovernanceOversee engineering documentation quality and configuration integrity.Review and approve engineering changes and technical documentation updates.Ensure technical data packages remain accurate and compliant.Cross-Functional Technical LeadershipCollaborate with Program Management, Operations, Quality, Safety, and Supply Chain teams.Mentor junior engineers and support development of engineering talent.Support proposal activities and technical planning for new product opportunities when required. QualificationsEducationBachelor's degree in mechanical engineering, Aerospace Engineering, or related engineering discipline required.Master's degree preferred.Experience7–12+ years of engineering experience supporting ammunition systems, energetics, defense products, or similar high-consequence technologies.Experience leading engineering tasks or technical workstreams is strongly preferred.Skills & CompetenciesAdvanced technical expertise in ammunition systems and engineering analysisStrong root cause analysis and troubleshooting capabilityAbility to lead complex engineering problem-solving effortsStrong technical communication and documentation skillsAbility to mentor engineers and influence technical decisionsBenefits & CultureWe believe a strong workplace is built on more than benefits. We are committed to fostering a professional, collaborative, and respectful environment where employees are valued, supported, and empowered to succeed.We complement our workplace culture with a comprehensive benefits package designed to support the health, financial well-being, and work-life balance of our employees. Benefits include medical, dental, and vision coverage; company-paid short-term disability, long-term disability, and life insurance; and the option to purchase additional voluntary life insurance.To support long-term financial well-being, we offer a 401(k) plan with company match.