{"id":1521701,"url":"https://alion.io/job/northrop-grumman-sr-principal-engineer-2","title":"Sr Principal Engineer","company":{"id":12494,"name":"Northrop Grumman","domain":"northropgrumman.com","url":"https://alion.io/company/northropgrumman","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":87,"open_postings":540,"ghost_share":0.002,"stale_share":0.693,"repost_share":0.017,"time_to_fill_p50_days":13,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Plymouth, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":123400,"max":185000,"currency":"USD","period":"year","gross":null,"usd_annual":185000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Power BI","optional":false}],"status":"live","first_seen_at":"2026-09-29T00:00:00Z","employer_posted_date":"2026-09-29","last_verified_at":"2026-10-19T22:39:03Z","board_verified":true,"closed_at":null,"days_open":21,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":21},"description":"RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: SecretTRAVEL: Yes, 10% of the TimeDescription\nAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.\nPosition Overview\nNorthrop Grumman is currently seeking an experienced Senior Principal (Level 4) Engineer to provide manufacturing and process-engineering technical expertise, project management, and support for our fast-growing medium-caliber ammunition production programs in our Plymouth, MN offices. Reporting to the Engineering Manager, Production Engineering, this role is responsible for delivering end-to-end manufacturing engineering support for electromechanical fuzes for our proximity, guided, and advanced ammunition technology programs.\nThe engineer will provide flexible manufacturing and process-engineering support across the full product lifecycle, from early conceptual development through production. Specific responsibilities will vary based on program priorities and the needs of the team being supported and may include design support, DFM/DFA, process development, automation, production planning, production support, troubleshooting, and continuous improvement. The engineer will collaborate across functions to deliver safe, high-quality, producible, and cost-effective solutions.\nKey Responsibilities\nWork with project teams to coordinate design-for-manufacturability (DFM), design-for-assembly (DFA), and automation opportunities for new product development efforts and existing products.\nLeverage the latest technologies including robotics, torque tools, vision / inspection systems, advanced testing, and data analytics to ensure high-quality, cost-effective products are released to market as quickly as possible.\nAid in the design of production solutions, including automation cells, fixtures, and test stations, to achieve optimal, safe production output and quality.\nDevelop and execute plans to support increased production volumes, including capacity analysis, line balancing, equipment selection, and production-rate ramp-up strategies.\nProvide on-site troubleshooting, maintenance, repairs, and upgrades for automation cells and associated equipment as needed.\nDevelop manufacturing processes and documentation that ensure hardware and test articles meet engineering and configuration requirements.\nCoordinate builds of electromechanical assemblies to support programs that are in engineering and manufacturing development as well as production.\nContribute to completion of specific program and project milestones.\nInterface with design engineering to create products that are optimized for assembly and long-term producibility.\nDisposition discrepant hardware; support and/or lead failure investigations, root-cause determination, and corrective-action implementation.\nCommunicate manufacturing plans and processes to internal and external customers through Manufacturing Readiness reviews.\nConceptualize and implement continuous-improvement projects internally and with suppliers, focusing on yield, throughput, and cost reduction.\nCommunicate project status and issues to internal management.\nCoordinate manufacturing efforts between internal functional disciplines including Engineering, Supply Chain, Quality, Manufacturing, and Test.\nCommunicate product requirements and collaborate with key suppliers to manage delivery of high-quality components and assemblies to be utilized in assembly of final product.\nImplement and manage strong manufacturing-engineering principles to ensure robust manufacturing processes and high product quality. Examples include SPC, P-FMEA, mistake proofing, gage R&R, equipment and gage qualifications, design for assembly, and First Article Inspections.\nMinimum Qualifications\nBachelor of Science degree in Mechanical Engineering or related engineering discipline & 8+years of related experience, OR a masters degree in mechanical engineering or related & 6+ years of related experience, or a PhD in mechanical engineering discipline or related & 4 years of experience \nSome experience working and communicating with customers, program management, and engineering management.\nTechnical understanding of mechanical mechanisms, electromechanical mechanisms, manufacturing processes, metal fabrication, and standard assembly processes.\nApplies knowledge of engineering and scientific methods, theories, and research techniques in the disciplined investigation and solution of technical problems.\nStrong computer skills in Microsoft Suite, including MS Project.\nAbility to obtain & maintain a DoD security clearance (US Citizenship required)\nDesired Qualifications\nExperience integrating cutting-edge technologies such as robotics, advanced inspection, vision systems, and data-analytics tools (Kepware, Thingworx, Power BI) into manufacturing environments.\nDemonstrated experience in DFM/DFA and production-rate ramp-up, including capacity planning and line optimization.\nExperience in managing key suppliers to deliver quality components to be used in the assembly of final product.\nExperience working in the defense industry and/or with U.S. Government contracts.\nAbility to work with a wide variety of multi-discipline people, including in remote settings, building strong, trusting relationships.\nExperience and proficiency in working with multiple projects simultaneously.\nSelf-motivated to start and complete quality work.\nStrong communication skills, written and verbal.\nExperience in Creo (3D CAD) and Teamcenter.\nProficiency in developing and utilizing electronic work instructions for manufacturing processes, with experience in ERP and MES systems.\nExperience with automation and controls, including robotics and controls platforms (Allen-Bradley, Epson / Fanuc robots, LabVIEW, vision systems, etc.).\nExperience in the production of electronic assemblies, including Circuit Card Assemblies (CCAs) using Surface Mount Technology (SMT) lines, adhering to industry best practices.\nPrimary Level Salary Range: $123,400.00 - $185,000.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. 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