Sr. Principal Mechanical Engineer
$129.3k - $193.9kFull-time
Northrop Grumman
RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: UnclearedTRAVEL: 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 is seeking a Sr. Principal Mechanical Engineer to join Mission Systems Discipline Engineering Organization. This position will be located in Chantilly, VA
Roles and Responsibilities:
- Create designs, perform analysis, integrate hardware, test deliverables, and generate documentation for hardware systems and systems of systems
- Work in 3D CAD to design solutions
- Utilize 3D CAD and other resources to perform analysis and calculations to validate designs
- Procure, inspect, and assemble first article designs
- Work with manufacturers to validate DFM
- Support operations and maintenance of fielded SIGINT systems
- Collaborate with a multidisciplinary engineering team to upgrade and improve developmental and fielded systems to maximize uptime and capabilities
- Interface and collaborate with customers, end users, operators, and field representatives
- This is an on-site and full-time position
- Role includes potential CONUS travel (up to 10%), with more available based on interest and program needs.
Basic Qualifications for Sr. Principal Mechanical Engineer:
- Must have a Bachelor’s degree in Mechanical Engineering or an equivalent STEM related discipline.
- Minimum of 8 years of experience with a Bachelor's degree; Minimum of 6 years with Master's degree; Minimum of 4 Years experience with PhD
- Willing and able to obtain and maintain a TS/SCI Security Clearance (U.S. citizenship is a pre-requisite)
- Experience with design modeling and drawing efforts using 3-D modeling tools
- Experience and willingness to be hands on during hardware assembly, testing and integration
- Experience creating designs using machined steel and aluminum, sheet metal, welded fixtures, additive manufacturing/composites components and assemblies
- Experience creating mechanical documentation; part drawings, assembly drawings, ANSI standards, etc.
- Experience performing mechanical analyses (structural FEA, modal, thermal) to validate and qualify designs.
- Hands-on experience in prototype or production machine shops, including interpreting drawings, tolerances, and GD&T.
Preferred Qualifications:
- Active Top Secret/SCI security clearance
- Experience packaging custom electronics and COTS into ruggedized enclosures for airborne and ground systems.
- Proficiency with SolidWorks (or similar 3D CAD) for complex assemblies, configurations, and ANSI/ASME drawings.
- Experience with CAD data management and configuration control (PDM/PLM, revision control, release workflows).
- Familiarity with model-based definition (MBD) and applying PMI/GD&T within 3D models.
- Experience integrating mechanical designs with electrical, RF, and software in multi discipline teams.
- Experience supporting hardware integration, test, and troubleshooting in lab and field environments.
- Demonstrated ability to produce clear, complete mechanical documentation (parts, assemblies, BOMs, work instructions).
- Aptitude and experience in systems integration and test activities, including hardware / software integration, verification, and troubleshooting.
- Knowledge of SIGINT operations
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Sr. Principal Mechanical Engineer in Chantilly, Loudoun County, VA vacancy
$130k - $180k
...shaping the future of flight. The Role As a Senior or Principal Airframe Stress Engineer, you will lead structural analysis efforts supporting... ...including: Bruhn Niu Roark ESDU Classical mechanics of materials approaches Collaborate with loads, design...SeniorImmediate startWorldwide$107k - $198k
...application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Principal Mechanical Engineer Full Time Employee Full-Time Fairfax, VA, US 6 days ago Requisition ID: 1835 Salary Range: $107,000.00 To $198,00...SuggestedFull timeTemporary workFor contractorsLocal area- DescriptionGPI seeks a Project Manager - Senior Mechanical HVAC Engineer for our Metro DC branch in Rockville, MD, or the Fairfax, VA office. In this role, you will have the opportunity to grow and direct a project team. Do you value a company that puts employee satisfaction...SeniorContract workFor subcontractorWork at office
$120.4k - $158.03k
...every location. We\'re looking for a high-energy, Senior HVAC Engineer to focus on our Data Center market. Join us, and you\'ll impact... ...for our Data Center clients. You will lead our Building Mechanical team members on projects, perform field investigations, interface...SeniorFull timeRemote work$170k - $185k
...Quincy, WA in accordance with our flexible work policy (3 days onsite required, 2 days remote). Vantage is seeking a Principal Engineer, Mechanical Engineering to serve as a senior technical leader within the Design Engineering Department, driving innovation,...SuggestedFull timeTemporary workLocal areaRemote workFlexible hours- ...Job Description Job Description Senior Principal Mission Engineer OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for Senior Principal Mission Engineer to support our customer in Chantilly, VA. Summary Make a difference for national...SeniorTemporary workFor contractorsFlexible hours
$160k - $200k
...Location Chantilly, VA, US Date Posted 2026-08-20 Category Engineering and Sciences Subcategory Systems Engineer Schedule... ...Work ORA_ON_SITE Description SAIC is seeking a Senior Principal Systems Enginee r to fill a critical position supporting a large...SeniorFull timeFor contractorsRemote workShift work- ...scientists, developing groundbreaking technologies that are transforming how the world uses information to enrich life. The Sr. Dry Etch Equipment Engineer is responsible for driving equipment reliability, long‑term corrective actions, and performance optimization of Dry...SeniorFull timeLocal areaImmediate startWorldwide
$100k - $140k
...require 10+ years of cybersecurity experience focused on SIEM engineering, log observability, and/or log forwarding. We require proficiency... ..., and we are seeking a motivated, mission-focused Senior Principal Cyber Engineer to join our team in Chantilly, Virginia. In...SeniorFull timeWork at office$146.4k - $219.6k
...Wednesday August 19th, 2026 at 9:46 AM | Expires Thursday, December 31st, 2026 at 12:59 AM Position Summary: A Senior Mechanical Engineer in our Mission Critical practice will have the opportunity to design the most complex advanced building systems, prepares design...SeniorFor contractorsCasual workWork at officeRemote workFlexible hours$102k - $189k
Job Title: Senior Specialist, Integration & Test Engineer (Mechanical Integration Engineer)Job Code: 44812Job Location: Chantilly, VA (On-Site)Job Schedule: 9/80: Employees work 9 out of every 14 days - totaling 80 hours worked, and have every other Friday offJob Description...SeniorFlexible hours$136.6k - $184.8k
...team of software hardware and network engineers supply chain specialists security experts... .... You will work with leaders and Principal Engineers in our Colo engineering team... ...- Knowledge of critical data center mechanical and electrical equipment - Experience...SeniorFull timeFlexible hours$136.6k - $184.8k
...You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers... ...to completion.Within AIS and Data Center Engineering, the Mechanical Products & Services (MPS) team is driving rapid innovation in...SeniorContract workFlexible hours- ...Job Description Job Description Description: As a Senior Mechanical Design Engineer, you will serve as the technical authority for mechanical systems design and delivery on large-scale data center and mission-critical infrastructure projects. With 10+ years of experience...SeniorFor contractorsLocal area
- ...Job Description Job Description Sr Mechanical Engineer - MEP About Us: Highland Consulting Group is a national executive search firm specializing in recruiting top-tier construction talent. With over 75 years of industry experience, we pride ourselves on placing...SeniorContract workFor contractorsLocal areaRelocation package
$150k - $190k
...that transform the world for good. Your impact Knack Works, a Jacobs Company, has an opening for a Senior Network/Systems Tools Engineer to support the Intelligence Sector.The job duties are as follows:• System Architecture: Design, implement, and maintain the OpenText...SeniorFull timeWork at officeImmediate start$120k - $160k
...____________________________________________________________________________________________________________ Project Manager — Engineering Design Company Name: EK Fox & Associates Location: Chantilly, VA Project Focus: Mission-Critical Environments, Sustainable...Contract workWork at officeFlexible hours$145k - $200k
OverviewVTG is seeking a Space Vehicle Attitude Control Systems Engineer, in Chantilly, VA. In this role, you will be responsible for... ...space program. You will be an integral participant in ACS and mechanical actuator design, requirements development & verification, and...Work experience placement$136.6k - $184.8k
...on developing innovative product solutions? If you are a mechanical product design engineer and looking for an exciting career in cloud infrastructure... ...things better & faster for our customers.AWS is looking for a Sr. Mechanical Engineer to become part of a global data...SeniorTemporary workFor contractorsFlexible hours- ...Senior Manager, Engineering (OSD) Location: Chantilly, VA Step into a pivotal leadership role where you’ll shape the backbone of a high-impact pharmaceutical manufacturing site. My client is seeking a strategic engineering leader to drive reliability, compliance,...SeniorFull time
$136.6k - $184.8k
...You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers... ...keep reading….In this role you will influence all aspects of Mechanical design, construction, operations, and maintenance for our...SeniorFor contractorsLocal areaFlexible hours- ...intelligence community, defense, civil, and commercial markets.Principal Cyber RF EngineerNightwing provides technically advanced full-... ...the most advanced technical challenges. The team comprises engineers of multiple disciplines including vulnerability research, reverse...SeniorFull timeRelocationRelocation package
$122k - $253k
...customers in the intelligence community, defense, civil, and commercial markets.Senior Principal Cyber EngineerCyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to join our team to solve crucial cyber challenges, working on site with our end users in...SeniorFull timeRelocationRelocation package$148.3k - $266.9k
...talent and redefine what’s possible.Job Description:Parsons Company, is seeking qualified candidates to fill a Principal Digital Signal Processing Engineer (DSP) positions at our headquarters in Herndon & Chantilly, VA. We are currently searching for full-time Digital...Full time$150k - $175k
...In this role, you own the mechanical design of spacecraft electronics assemblies. You'll take the design through from CAD model, through... ...have a high level of trust in their staff to use their own engineering judgement. This is a senior role, and has a real...SeniorPermanent employmentWork at office- ...into intelligence, inspiring the world to learn, communicate and advance faster than ever.Our Opportunity Summary:The Sr. RDA Equipment Applications Engineer is responsible for owning and optimizing real‑time defect analysis (RDA) toolsets, including recipe development,...SeniorFull timeLocal areaImmediate startWorldwide
$50 per hour
...ProfessionalFT/PT/Casual: FullTimeDepartment: SpaceBusiness Unit: SpaceStandard Job DescriptionLockheed Martin (LM) is looking for a Chief Engineer (CE) Senior Manager to be both the overall Chief Engineer and CE manager for a portfolio of programs within the National Security...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$86.8k - $198k
Chief Engineer, SeniorThe Opportunity:At a certain point, experience-based system design can start to look like clairvoyance. When you’ve developed so many systems that you can not only orchestrate the best solution for any technology-based challenge, but you can also...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work- ...and citizen services. We’re a nonprofit engineering, applied research, and advanced... ...National Space Program is looking for a Principal SIGINT Ground Systems Engineer who wants... ...development for engineering/physical systems, mechanical engineering, or related discipline and...Work experience placementInternshipLocal area
- ...health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology organization... ...Responsibilities:The Systems and Operations Department is seeking a Principal Systems Engineer to support government sponsor mission needs...InternshipLocal area
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Sr. Principal Mechanical Engineer. Be the first to apply!
Related searches
- director software engineering Chantilly, Loudoun County, VA
- general engineer Chantilly, Loudoun County, VA
- senior civil engineer project manager Chantilly, Loudoun County, VA
- senior director engineering Chantilly, Loudoun County, VA
- data center chief engineer Chantilly, Loudoun County, VA
- chief engineer Chantilly, Loudoun County, VA
- senior principal engineer Chantilly, Loudoun County, VA
- principal engineer Chantilly, Loudoun County, VA
- senior chief engineer Chantilly, Loudoun County, VA
- engineering director Chantilly, Loudoun County, VA





