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Salary
$108k – $162k per year
Location
In office (Apopka)
Seniority
Principal · 8+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Oct 26, 2026. Northrop Grumman scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Northrop Grumman is an American defence contractor whose oldest predecessor was founded in 1939, and which took its present form through the 1994 combination of Northrop and Grumman. It builds strategic systems including the B-21 Raider bomber and the Sentinel intercontinental ballistic missile programme, military and civil space systems, radars and electronic warfare equipment, autonomous aircraft, and mission systems and software for the United States armed forces and allied governments. Headquartered in Falls Church, Virginia and listed on the New York Stock Exchange, it earns the large majority of its revenue from the American government and employs close to one hundred thousand people.
RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: SecretTRAVEL: 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.

At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to enable strategic planning. We’re looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we’ll support your mission of expanding your personal network and developing skills, whether you are new to the field or an industry thought leader. At Northrop Grumman, you’ll have the resources, support, and team to do some of the best work of your career.

What You’ll Get to Do:

We are seeking a self-starting, motivated Sr Principal Mechanical Engineer to join our dedicated Apopka, FL team site. The team designs, develops, tests, delivers, and operates advanced prototypes and unique laser systems for military ground, air, and space applications.

Position is for a direct contributor with leadership responsibilities.

Roles & Responsibilities:

· The candidate shall be well versed in opto-mechanical engineering design principles and in technical problem solving.

· Serve the program as a functional lead and integration engineer.

· Support development of a variety of unique opto-mechanical equipment designed for camera and laser applications. This involves a broad spectrum of engineering disciplines so a solid foundation in mechanical engineering principles, and the design and production process is required to be successful.

· Work closely with Chief Engineer and Program Management to drive the hardware design, working within challenging schedules.

· Derive system level requirements into mechanical designs.

· Drive continuous process improvements on fielded equipment and procedures

· Provide engineering design and analysis guidance

Basic Qualifications:

· B.S. Degree in Mechanical Engineering plus 8 years engineering experience, or M.S. in Mechanical Engineering plus 6 years engineering experience.

· Proficient in the design of Optical-Mechanical systems

· Proficiency in use of 3D CAD experience (NX, Solidworks, Creo preferred)

· Experience with drawing creation and implementation of ANSI Y14.5M GD&T standards

· Experience leading and mentoring a team of junior mechanical engineers

· US Citizenship is required with the ability to obtain and maintain a DoD Secret Clearance

Preferred Qualifications:

· Experience with TeamCenter-Product Lifecycle Management (PLM) or similar Configuration Management applications

· Experience with Siemens NX

· Experience with Finite Element Analysis (ANSYS preferred) for Structural, Thermal, and/or Computational Fluid Dynamics

· Experience with DOD, Military, and/or Space specifications

· Experience in Additive Manufacturing (Plastic and Metal)

· Familiarity with DFM/DFA principles

· Experience as a CAM/IPT Lead supporting the integration of complex laser and optical-mechanical prototypes

Primary Level Salary Range: $107,800.00 - $161,800.00The 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.
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