Full-Time

Sr. Principal Mechanical Engineer

Posted on 5/17/2025

Northrop Grumman

Northrop Grumman

10,001+ employees

Aerospace and defense technology solutions provider

Compensation Overview

$119.2k - $178.8k/yr

+ Overtime + Shift Differential + Discretionary Bonus + Annual Bonus

Senior, Expert

No H1B Sponsorship

Halethorpe, MD, USA + 1 more

More locations: Annapolis Junction, MD, USA

In Person

Relocation assistance may be available.

US Citizenship, US Top Secret Clearance Required

Category
Design Engineering
Mechanical Engineering
Requirements
  • Bachelor's degree in Mechanical or Aerospace Engineering with 8+ years of relevant technical experience in design engineering, manufacturing engineering, or test engineering; Masters Degree in Mechanical or Aerospace Engineering with 6+ years of relevant technical experience; PhD in Mechanical or Aerospace Engineering with 4+ years of relevant technical experience.
  • Experience creating 3D parametric models using any industry-standard 3D CAD package
  • Experience drafting, reviewing, or interpreting 2D mechanical drawings
  • Self-motivated and able to work productively and independently in a fast-paced environment
  • Good attention to detail, follow-through, and time-management skills
  • Demonstrated good verbal/written communication skills & proactive inter-personal initiative
  • Ability to obtain and maintain a US DoD TS/SCI clearance with Polygraph. U.S. Citizenship is a prerequisite.
Responsibilities
  • Coordinate with a multi-disciplined team of engineers responsible for providing engineering support
  • In this role the selected individual will be an on-site Liaison Engineering source of the Test Platform Engineering Group support in day-to-day technical tasking related to a classified program
  • Work with software subsystems installations
  • Lead Mechanical Design Engineer for Room Temperature Control Systems
  • Collaborating with other functional areas on various aspects of product design/documentation, including procurement, production, logistics, or configuration management
  • Mechanical Design and Documentation for Cryogenic Systems with a focus on Quantum Mechanics Principles
  • Hands-on troubleshooting and inspection/software subsystems in support of prototyping, production, and/or test
  • Estimate task durations and execute according to schedules
  • Provide input into the design of hardware and custom hardware/software support technology.
Desired Qualifications
  • Experience working in or providing engineering support to manufacturing or test/evaluation, particularly for DoD projects.
  • Experience working in a Scrum, Agile, or Kanban product-development environment
  • Experience with creating Assembly Drawings, Part Drawings, Cable Drawings, Parts Lists, Wire Lists, Schematics, and Work Instructions for Cryostats, Racks, and Test Equipment.
  • Experience in a technical leadership and/or management role.
  • Excellent written and verbal communication skills, leadership, and problem-solving abilities
  • Active DoD TS/SCI security clearance with Polygraph.

Northrop Grumman provides advanced aerospace and defense technology solutions primarily for government clients, including the U.S. Department of Defense and international allies. The company specializes in areas such as autonomous systems, cybersecurity, space, and C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance). Its products and services are developed through extensive research and development, manufacturing, and integration of advanced technologies. Northrop Grumman stands out from competitors by focusing on long-term contracts that ensure a steady revenue stream, which are often awarded based on its expertise and proven track record. The company's goal is to maintain a strong market position by continuously innovating and providing comprehensive solutions that meet the evolving needs of its clients.

Company Size

10,001+

Company Stage

IPO

Headquarters

Falls Church, Virginia

Founded

1939

Simplify Jobs

Simplify's Take

What believers are saying

  • Growing demand for autonomous systems boosts Northrop Grumman's market opportunities.
  • Increased investments in space technologies align with Northrop Grumman's capabilities.
  • Rising cyber threats create opportunities for expanding cybersecurity offerings.

What critics are saying

  • Emerging defense tech companies pose competitive threats to market share.
  • Geopolitical tensions may shift defense spending priorities unpredictably.
  • Global supply chain volatility could lead to production delays and cost increases.

What makes Northrop Grumman unique

  • Northrop Grumman excels in autonomous systems, cyber, and space technologies.
  • The company has a strong track record with government contracts and defense solutions.
  • Its diversified revenue streams across multiple segments ensure financial stability.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

Life Insurance

Disability Insurance

Paid Vacation

Paid Holidays

Relocation Assistance

Performance Bonus

Company News

Defence Today
Jul 2nd, 2025
Northrop Grumman offers ground-based radar solution to Romanian Air Force

Northrop Grumman Corporation has entered into a Memorandum of Understanding with ROMARM, a leading state-owned defence company in Romania, to work together in providing a ground-based radar solution for the Romanian Air Force.

Ecomagazine
Jun 27th, 2025
Stantec and Northrop Grumman Partner on Technology Solutions for Environmental Conservation and Protection

Stantec, a global leader in environmental conservation design and engineering, has partnered with Northrop Grumman, a global leader in aerospace and defense technology, to develop and apply innovative monitoring, data capture, and analysis solutions to address urgent environmental conservation issues.

Defense Here
Jun 24th, 2025
Northrop Grumman expands ground systems capability with new facility

Northrop Grumman has inaugurated a new 100,000-square-foot integration facility in Englewood, Colorado, expanding its manufacturing footprint to support the growing demand for advanced space ground systems.

Forbes
Jun 16th, 2025
Why Tackling Iranian Drones Is A Job For Israel’S Helicopter Gunships

An Israeli AH-64 Apache engages and shoots down an Iranian suicide drone in footage released by the. More IDF IDFDramatic videos are emerging of Israeli AH-64 Apache helicopters shooting down Iranian attack drones. The advanced U.S.-supplied helicopters are pursuing and destroying propeller-driven drones with bursts from their 30mm cannon. But the encounters illustrate an interesting point: the drones are getting past Israel’s world-class interceptor missiles and have to be stopped at close range. In a long war, helicopters vs drones could become a crucial factor in protecting civilians.Iron Dome Protection Comes At A CostIsrael has a layered air defence missile system, comprising the long-range Arrow, the medium-range David’s Sling and THAAD and the short range Iron Dome. Between them, these are capable of tackling everything from ballistic missiles launched from Iran to home-made Qassem rockets fired from Gaza.Israel's Iron Dome air defence system shooting down incoming Hezbollah rockets in August 2024 AFP via Getty ImagesThis system is supported by a complex network of radar and other sensors and has proven extremely effective at swatting down missile attacks mid-air

The Defense Post
Jun 10th, 2025
Northrop Grumman, Marshall Propose Next-Gen UK Ground-Based Air Defense

Northrop Grumman has partnered with Marshall to develop a proposal for the British Army's next-generation Ground-Based Air Defense (GBAD) program.

INACTIVE