{"id":1159591,"url":"https://alion.io/job/northrop-grumman-sr-principal-design-engineer-2","title":"Sr. Principal Design Engineer","company":{"id":12494,"name":"Northrop Grumman","domain":"northropgrumman.com","url":"https://alion.io/company/northropgrumman","size_band":"5000+","is_staffing_agency":false,"is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":86,"open_postings":303,"ghost_share":0,"stale_share":0.739,"repost_share":0.01,"time_to_fill_p50_days":14,"computed_at":"2026-09-24T05:45:00Z"}},"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":["Palmdale, United States","El Segundo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":142200,"max":213400,"currency":"USD","period":"year","gross":null,"usd_annual":213400},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SolidWorks","optional":false},{"name":"MATLAB","optional":true},{"name":"Simulink","optional":true}],"status":"live","first_seen_at":"2026-09-23T23:01:11Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-24T11:10:34Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE 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.Northrop Grumman Aeronautic Systems has an opening for a Sr. Principal Design Engineer to join our team of qualified diverse individuals. This position will be located in Palmdale or El Segundo, CA. The candidate should be a self-starter with familiarity working in an Integrated Product Team (IPT) construct.\nLooking for an Engineer who analyzes, researches and develops structural engineering specifications involving metals, non-metallic or composite structural materials for product design. Analyzes damage tolerance, durability of metal and composite airframe structures. Knowledge of random vibration analysis. Tools utilized may include Catia, FEMAP, Patran, Nastran and a variety of software applications.\nEssential Functions:\nDesign and develop subsystem components (avionics, control surfaces, propulsion interfaces, environmental systems) meeting performance, weight, and reliability requirements.\nTranslate system-level requirements into detailed subsystem specifications, interfaces, and engineering drawings.\nPerform trade studies, engineering analyses, and simulations (stress, aeroelasticity, thermal, vibration) to validate subsystem concepts and support design decisions.\nCreate and maintain technical documentation, including schematics, bills of materials, test plans, and verification matrices.\nSupport integration and interface activities with other engineering disciplines to ensure subsystem compatibility and compliance.\nPlan, execute, and analyze subsystem-level tests (bench, hardware-in-the-loop, environmental) and resolve design deficiencies through corrective actions.\nContribute to configuration management, design reviews, risk assessments, and continuous improvement activities to ensure producible, maintainable subsystem designs.\nBasic Qualifications:\nBS degree in Engineering (Aerospace, Mechanical, or Civil) and a minimum of 8 years of experience in Aerospace structural analysis or MS degree in Engineering (Aerospace, Mechanical, or Civil) with 6 years of experience OR a PhD in a STEM discipline and 4 years of related engineering experience..\nProficiency with CAD and drafting tools (e.g., CATIA, NX, SolidWorks) and creation of engineering drawings and BOMs. \nStrong knowledge of requirements development and management practices and tools\nExperience with subsystem test planning, execution, troubleshooting, and hardware-in-the-loop or bench testing.\nFamiliarity with manufacturing/ producibility considerations, design for maintainability, and configuration management processes.\nActive USG Secret clearance (with a background investigation within the past 5 years or enrolled into Continuous Evaluation).\nAbility to obtain and maintain initial Special Access Program (SAP) access via a Program Access Request (PAR). This SAP/PAR must be obtained prior to commencement of employment and must be obtained within a reasonable amount of time as determined by the company to meet its business needs.\nAbility to obtain and maintain subsequent SAP PARs following commencement of employment to be able to completely support statement of work.\nPreferred Qualifications:\nCurrent applicable Special Access Program (SAP) clearance.\nActive USG Top Secret clearance or higher (with a background investigation within the past 5 years or enrolled into Continuous Evaluation).\nExperience integrating avionics, flight control electronics, sensors, or actuators.\nProficiency with MBSE and simulation\nFamiliarity with certification processes\nExperience performing engineering analyses and simulations (structural, thermal, vibration, aeroelastic) using tools such as Nastran, Ansys, MATLAB/Simulink.\nHave some proficiency in 3-dimensional, constraint based, design systems, CATIA or NX.\nHave some familiarity with configuration management tools such as Teamcenter or CPLM\nExperience with EVMS, CAM certification\nPrevious Team Leadership - IPT, Project Management, etc\nPrimary Level Salary Range: $142,200.00 - $213,400.00The 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":6437,"description_truncated":false,"requirements":{"experience_years_min":8,"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":"2026-09-23T23:01:11Z"}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":0,"expected_fill_days":14,"reasons":["conf:1","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-09-24T05:45:00Z"},"pay":{"stated_usd_annual":213400,"is_top_pay":true},"html_url":"https://alion.io/job/northrop-grumman-sr-principal-design-engineer-2","json_url":"https://alion.io/job/northrop-grumman-sr-principal-design-engineer-2.json","meta":{"generated_at":"2026-09-25T02:20:52Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2493,"day_limit":5000,"remaining_today":2507,"minute_limit":60,"resets_at":"2026-09-26T00:00:00Z"}}}