[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Northrop Grumman · United States-Alabama-Huntsville # Sr Principal Engineer Mechanical - Space AHT United States-Alabama-Huntsville Full-time Senior individual contributor $98,900.00 - $148,300.00 Skilled Trades & Maintenance Listed on Northrop Grumman’s official careers site. Posted October 29, 2026. Check that it is still open and apply there. [Apply on Northrop Grumman’s careers site →](https://ngc.wd1.myworkdayjobs.com/Northrop_Grumman_External_Site/job/United-States-Alabama-Huntsville/Sr-Principal-Engineer-Mechanical---Space-AHT_R10258157) [OpenNash Jobs](https://jobs.opennash.com/) / [Northrop Grumman](https://jobs.opennash.com/companies/northrop-grumman/) / Sr Principal Engineer Mechanical - Space AHT ## Job description ### RELOCATION ASSISTANCE Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description 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. Northrop Grumman Space Systems, Multi-Domain Operations, and Missile Defense Integration Business Unit (BU) has an exciting career opportunity for a Principal Mechanical Engineer Level 3 or Sr. Principal Mechanical Engineer Level 4 to join our team of qualified, diverse individuals. This position will be in Huntsville, AL. ### Position Overview As a Mechanical Engineer you will support the GMD Weapon System (GWS) Hardware Engineering team's design efforts working within an Agile environment. Your core tasks will entail performing finite element analysis, reviewing analyses, and providing oversight to junior engineers developing analysis products. Additional responsibilities include maintaining design drawings for multiple Ground Systems (GS) IPT hardware systems and their interfaces with facilities. ### Essential Functions Under the direction of your program leadership, responsibilities include performing analyses IAW industry and military standards. Develop design drawings, maintaining drawings, evaluating hardware design efforts, scheduling, and planning required tasks. Leading small teams and writing reports to support milestone reviews. Accountability and active participation in team meetings and internal/external demos, and documenting progress on team dashboards is expected. Generate engineering documentation including technical drawings, specifications, and test reports. Mentoring and cross-training junior engineers in analysis work, reviews, and approving their analysis results to meet customer requirements. ### Basic Qualifications Level 3: Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline from an accredited university and 5 years of related experience, or a Master's Degree and 3 years of related experience, or 1 year of related experience with a PhD. ### Level 4 Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline from an accredited university and 8 years of related experience, or a Master's Degree and 5 years of related experience, or 4 years of related experience with a PhD. Ability and willingness to travel up to 10% of the time. Applicants must have a current active in-scope U.S. Government DoD issued Secret security clearance at the time of application which is required to start. Must be able to support an in-office / closed-area work environment full-time. Ability to communicate data in a clear and concise manner. Experience using a 3D CAD Package such as SolidWorks, Creo, or NX Experience drafting and reviewing 2D mechanical drawings per ASME standards Prior experience with engineering PLM systems such as Teamcenter and MRP system such as SAP. Understanding and application of industry engineering technical standards; demonstrated structural design experience and impact assessment. Recent experience generating engineering documentation including technical drawings, specifications, technical reports, test procedures, program procedures, and CDRLS. Experience evaluating commercial off-the-shelf (COTS) and military parts for compliance to meet requirements. Familiarity with MIL-STD-810, MIL-STD-1366, MIL-STD-1472, ASME Y14.5, ASME Y14.100, MIL-STD-31000 Preferred Qualifications: BS in Mechanical or Aerospace Engineering Excellent interpersonal, written communication, and presentation skills, including the ability to clearly and succinctly communicate complex concepts Experience leading a small team, including task and schedule planning, to meet major project milestone objectives. Experience in one or more of the following system engineering knowledge areas: technical planning, requirements derivation, functional analysis, timeline analysis, trade studies, cost and risk analysis, interface definition, system design, system integration, verification and validation, supportability, and effectiveness analyses for total systems. Experience using analytical software tools, to analyze and reduce data to identify key characteristics and trends. Experience with mission critical and safety critical systems, components, etc. ### Familiarity with Missile Defense Agency (MDA) Core Standards MDA-QS-001-MAP, MDA-QS-003-PMAP, MDA Instruction 5000.20-INS (ETR Process) Familiarity with the GMD domain and GMD Launch Support Systems hardware Hands-on mentality and a passion for fast-paced environments. Experience with Finite Element Analysis and Modeling theory and application using industry standard structural analysis software (ANSYS, GTStrudl, ABAQUS, STAAD, Femap, NX Simcenter, NASTRAN, Creo Simulation or SolidWorks Simulation) DOORS and/or CAMEO exposure Prior experience with the design, test, and/or integration and deployment of mechanical and structural components, systems, or subsystems #HSVSpace #SpaceEngJobs #SPEnhancedERAP Primary Level Salary Range: $98,900.00 - $148,300.00 Secondary Level Salary Range: $123,400.00 - $185,000.00 The 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](http://www.northropgrumman.com/EEO). U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions. ## At a glance - Posted by the employer: Oct 29, 2026 - First seen by OpenNash: Nov 1, 2026 - Last checked: Nov 1, 2026 - Listed for: 3 days - Location: United States-Alabama-Huntsville - Employment type: Full-time - Pay: $98,900.00 - $148,300.00[Apply on Northrop Grumman’s careers site →](https://ngc.wd1.myworkdayjobs.com/Northrop_Grumman_External_Site/job/United-States-Alabama-Huntsville/Sr-Principal-Engineer-Mechanical---Space-AHT_R10258157) ## More jobs at Northrop Grumman ### [Engineer / Principal Mechanical Engineer (Secret Clearance) 20426](https://jobs.opennash.com/companies/northrop-grumman/jobs/d94393b03f9d8ae3a586/) United States-Alabama-Huntsville ### [Engineer/Principal Mechanical Engineer (Secret Clearance) - 18289](https://jobs.opennash.com/companies/northrop-grumman/jobs/2fde7059c4045659eade/) United States-Alabama-Huntsville ### [PBACM Test-Mechanical Technician - 19724](https://jobs.opennash.com/companies/northrop-grumman/jobs/0e183aee73de1fa4b55c/) United States-Alabama-Huntsville ### [Principal / Sr Principal Mechanical Engineer](https://jobs.opennash.com/companies/northrop-grumman/jobs/f837c8d8504ecf264596/) United States-Alabama-Huntsville ### [Sentinel Master Technician](https://jobs.opennash.com/companies/northrop-grumman/jobs/9b6fb6d3c1377dcbedd8/) United States-Alabama-Huntsville ## Similar jobs at other companies ### [Senior Mechanical Engineer – Space Systems](https://jobs.opennash.com/companies/bae-systems/jobs/293ba67b6c24df5e6d77/) BAE Systems · Hudson, New Hampshire, United States ### [Engineer Senior Principal III - Space Vehicle Command and Control Modernization Architect - $20K Sign-on Bonus](https://jobs.opennash.com/companies/bae-systems/jobs/1d883ded5428f880170a/) BAE Systems · Boulder, Colorado, United States ### [Principal Mechanical Engineer - AI Systems](https://jobs.opennash.com/companies/microsoft/jobs/43a67da8bed523038c50/) Microsoft · United States, California, Mountain View ### [Space Vehicle Test Engineer](https://jobs.opennash.com/companies/lockheed-martin/jobs/2c13a46fa82788e5427f/) Lockheed Martin · Littleton, CO ### [Space Vehicle Test Engineer Sr](https://jobs.opennash.com/companies/lockheed-martin/jobs/f2dedba8a99bd0d79bbb/) Lockheed Martin · Littleton, CO OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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