{"id":4035716,"url":"https://alion.io/job/northrop-grumman-principal-mechanical-engineer-4","title":"Principal Mechanical 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":"B","score":80,"open_postings":471,"ghost_share":0,"stale_share":0.777,"repost_share":0.015,"time_to_fill_p50_days":27,"computed_at":"2026-11-11T05:49:22Z"}},"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":98900,"max":148300,"currency":"USD","period":"year","gross":null,"usd_annual":148300},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":true,"has_equity":false,"technologies":[{"name":"GD&T","optional":false},{"name":"Microsoft Office","optional":false}],"status":"live","first_seen_at":"2026-11-10T20:09:56Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-11T10:29:40Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: SecretTRAVEL: Yes, 25% 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.Our Missile Products Division in Plymouth, MN has an excellent opportunity for a Principal Mechanical Design Engineer whose duties and required experience are described below. As a Principal Design Engineer in Fuzing and Warheads Development Group, your responsibilities will be as a technical contributor / team member / team leader on various product development or production programs. You will work with other engineers, technicians, program managers and administrative personnel to accomplish the programs objectives. Responsibilities include but are not limited to:\nMechanical design engineering lead on ordnance programs, managing assigned responsibilities and directing work of other engineers, technicians, drafting personnel, and administrative personnel to accomplish program goals.\nConduct design trade studies to select the best possible design solution, taking into account factors including but not limited to, system performance and functionality, material selection, strength to weight ratio, manufacturability and cost.\nResponsible for the design, fabrication and testing components and assemblies in the high shock environments related to fuzes and warheads.\nThree dimensional mechanical modeling (CAD- computer aided design)\nPresentation of assigned work at program technical reviews and in written technical reports.\nManagement of cost and schedule for assigned projects.\nPreparation and planning of cost estimates and written technical proposals.\nCompilation and analysis of test data including a comparison to estimated pretest performance predictions. The high volume of data involved often requires analysis with various computer programs. Experience with computer coding programs is desired.\nAct as design support to programs that are in the production phase (on one or more programs).\nAct as an integrated product team lead, guiding the design activities of a small team of engineers and designers, while maintaining cost and schedule control.\n\nBasic Qualifications:\nBS in engineering required with 5 years of direct mechanical engineering experience, a MS in engineering with 3 years of direct mechanical engineering experience, or a PHD in engineering with 0 years of direct mechanical engineering experience.\nStrong computer-aided design (CAD) skills, preferably with PTC Creo (Pro-E)\nStrong mechanical skills and exposure to ASME Geometric Dimensioning and Tolerancing (GD&T) and ASME Y14.5\nAbility to work independently as well as in a team environment.\nAbility to multitask and organize/prioritize job assignments in a rapidly changing, short turn-around environment.\nWorking knowledge of manufacturing processes to include, but not limited to, machining, gauging, welding, and injection molding.\nBasic understanding of structural and thermal dynamics.\nMaterial selection experience of both metals and plastics.\nUnderstanding of design for assembly / design for manufacturing (DFA/DFM)\nWorking knowledge of Microsoft office (Excel, Word, Power Point, Project)\nAbility to travel (approximately 5 to 8 times per year to meet with customers and suppliers)\nSecurity regulations require that the individual must be a U.S. citizen and must have the ability to obtain a DoD security clearance to a level of Secret.\nPreferred Qualifications:\nExperience developing electronics packaging solutions for challenging environmental conditions: shock, temperature, electromagnetic and others.\nElectromechanical mechanism or electro-explosive device design and analysis experience.\nPossess an understanding of finite element analysis techniques and tools.\nPossess an understanding of Six Sigma disciplines.\nExperience leading either a technical or program teams.\nPossess an active DoD security clearance to a level of Secret.\nPrimary Level Salary Range: $98,900.00 - $148,300.00The 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. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.","description_format":"text","description_chars":6283,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Annual bonuses","Health insurance","Insurance coverage","Relocation assistance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Aerospace Manufacturing","Satellite Manufacturing","C4ISR","Space Defense"],"lifecycle":[{"event":"open","at":"2026-11-10T20:09:56Z"}],"visa":[],"liveness":{"score":60,"band":"ok","label":"Likely open","p_open":1,"p_active":0.602,"p_room":1,"age_days":0,"expected_fill_days":27,"reasons":["conf:1","stale_co","win:early","comp:brand"],"computed_at":"2026-11-11T05:49:22Z"},"pay":{"stated_usd_annual":148300,"is_top_pay":false},"html_url":"https://alion.io/job/northrop-grumman-principal-mechanical-engineer-4","json_url":"https://alion.io/job/northrop-grumman-principal-mechanical-engineer-4.json","meta":{"generated_at":"2026-11-11T10:49:55Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":18693,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":12494},"rest":"https://alion.io/mcp/rest/get_company?id=12494"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnorthrop-grumman-principal-mechanical-engineer-4"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fnorthrop-grumman-principal-mechanical-engineer-4"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fnorthrop-grumman-principal-mechanical-engineer-4"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/northrop-grumman-principal-mechanical-engineer-4\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnorthrop-grumman-principal-mechanical-engineer-4"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4035716}},{"tool":"search_jobs","arguments":{"company":"northropgrumman.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4035716},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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