{"id":1971066,"url":"https://alion.io/job/northrop-grumman-principal-sr-principal-mechanical-engineer-2","title":"Principal / Sr 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":82,"open_postings":526,"ghost_share":0.006,"stale_share":0.705,"repost_share":0.027,"time_to_fill_p50_days":26,"computed_at":"2026-11-06T05:58:05Z"}},"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":["Huntsville, 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":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"SolidWorks","optional":false},{"name":"AWS","optional":true},{"name":"Digital Twin","optional":true},{"name":"GD&T","optional":true},{"name":"MIL-STD-810","optional":true}],"status":"live","first_seen_at":"2026-10-06T19:19:47Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-11-06T18:33:03Z","board_verified":true,"closed_at":null,"days_open":31,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":31},"description":"RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: Interim 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.Mid- to Senior-level mechanical engineering position in the Huntsville Hardware Engineering functional department. This position will support one or more projects performing design engineering for integration of Command and Control systems, such as radios, networks, antennas, and power equipment, in support of Department of Defense projects. These projects include anti-artillery systems, security and warning systems, air and missile defense components; installations in tactical wheeled and armored vehicles, aboard ships, or in operations centers; as well as associated support activities. Position supports a functional matrixed organization; employee's final program assignment may vary depending on staffing needs.\nResponsibilities may include, but are not limited to:\nDesign of mechanical parts and assemblies, including 3D CAD modeling; 2D drawing drafting, reviews, revision, and release; selection of components and materials; support of trade studies\nCommunicating with suppliers and customers to exchange technical information\nCollaborating with other functional areas on various aspects of product design/documentation, including procurement, production, logistics, or configuration management\nHands-on troubleshooting, inspection, or assembly of parts/subsystems in support of prototyping, production, or test\nPerforming engineering analyses, such as weight and center of mass, structural, transportability, or thermal; as well as authoring reports documenting them\nCreating, delivering, and defending engineering briefings or reports to support design review activities\nTracking & reporting task status in an Agile for Hardware environment\nLeading or providing technical supervision to engineering teams conducting any of the above activities\nTraining and mentoring junior or mid-level engineers\nBasic Qualifications:\nBachelor’s degree in Mechanical or Aerospace Engineering\nMinimum 5 years of experience (for level 3) or 8 years of experience (for level 4) in mechanical design engineering\nExperience in 3D parametric modeling using any industry-standard 3D CAD package, NX or SolidWorks preferred\nExperience drafting & reviewing 2D mechanical drawings per ASME standards\nExperience using any industry-standard Product Lifecycle Management system, TeamCenter preferred\nExperience using Manufacturing Resource Planning systems, SAP preferred\nDemonstrated good verbal/written communication skills & proactive inter-personal initiative\nExperience leading teams solving complex technical problems in a collaborative environment\nActive DoD Secret or greater security clearance (or interim)\nPreferred Qualifications:\nExperience in integration design of C2 systems supporting DoD customers\nExperience preparing or reviewing proposals for DoD customers\nExperience with industry and military standards (MIL-STD-810, MIL-STD-1472, etc.)\nExperience in one or more of the following technical areas:Geometric Dimensioning and Tolerancing (GD&T)\nDesign or inspection of weldments per AWS\nDynamic stress analysis\nDesign, analysis, or selection of HVAC systems\nMilitary coatings, surface treatments, and corrosion control\nDesign of electromagnetically shielded enclosures\nCable assembly modeling and routing in CAD, NX preferred\nModel based definition (MBD/PMI), NX preferred\n“Digital Twin” hardware modeling and simulation\n\nPrimary Level Salary Range: $98,900.00 - $148,300.00Secondary 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. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.","description_format":"text","description_chars":5927,"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":["Government"],"lifecycle":[{"event":"open","at":"2026-10-06T19:19:47Z"}],"visa":[],"liveness":{"score":32,"band":"fade","label":"Fading","p_open":1,"p_active":0.584,"p_room":0.55,"age_days":30,"expected_fill_days":26,"reasons":["conf:2","stale_co","velocity","win:tail","comp:brand"],"computed_at":"2026-11-06T05:58:05Z"},"pay":{"stated_usd_annual":148300,"is_top_pay":false},"html_url":"https://alion.io/job/northrop-grumman-principal-sr-principal-mechanical-engineer-2","json_url":"https://alion.io/job/northrop-grumman-principal-sr-principal-mechanical-engineer-2.json","meta":{"generated_at":"2026-11-06T20:23:21Z","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":4590,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"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-sr-principal-mechanical-engineer-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"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-sr-principal-mechanical-engineer-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"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-sr-principal-mechanical-engineer-2"},{"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-sr-principal-mechanical-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnorthrop-grumman-principal-sr-principal-mechanical-engineer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":1971066}},{"tool":"search_jobs","arguments":{"company":"northropgrumman.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":1971066},"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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