Principal Mechanical Design Engineer

Date Posted: 2026-10-29 Country: United States of America Location: US-CA-GOLETA-B03 ~ 75 Coromar Dr ~ BLDG B03 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Security Clearance Type: None/Not Required Security Clearance Status: Not Required

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

Do you have a desire to be part of a team in a fast-paced environment that challenges your skills and provides you with new opportunities across multiple product lines? If so, we’d like to discuss your career in Mechanical Engineering at Raytheon Vision Systems (RVS) in Goleta, CA. This position is onsite in our Goleta, CA location.

What You Will Do

• Developing initial concepts of Opto-Mechanical Assemblies through final part design using 3D Solid Modeling.
• Perform Design for Manufacturability Trade Studies to optimize fabrication / integration cost reductions.
• Iterate designs with Structural / Thermal Analysts to optimize survival / reliability requirements.
• Complete Technical Data Package (TDP 2D documentation of Solid Model designs.
• Create Initial Releases and perform Revisions of TDP in Product Data Management (PDM) system.
• Cooperate as an integral member of the Integrated Product Team (IPT) contributing to successful program outcomes under demanding cost and schedule constraints.
• Initial planned duties might be Manufacturing support in a Sustaining / Liaison Engineering role.
• Track and report progress against schedule milestone requirements to meet drawing release dates.
• Occasionally delegate assignments to less experienced Engineers and check their work for accuracy.
• Willingness to perform Sustaining Engineering duties in support of the Manufacturing Department.
• Communicate effectively with Management and IPT status of daily assignments.

Qualifications (You Must Have)

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience.
• Experience in mechanical design with 3-D CAD Modeling Tools (CREO preferred).
• Experienced in PDM release (Windchill preferred).
• Experienced in GD&T per ANSI Y14.5 and performing tolerance stack-up analysis.

We Prefer

• Experience in Mechanical design preferably in the Infra-red Dewar products or Aerospace industry.
• Experience developing detailed mechanical designs for optical, electrical and/or mechanical systems.
• Experience designing products for cryogenic environments.
• Experience leading large teams, interfacing with internal / external customers, and guiding other engineers.
• Experience leading Peer Review meetings.
• Experience with Gate Release process for product development.
• Experience with Earned Value Management System (EVMS).
• Experience Managing Program Schedules and Budgets and reporting status to Program Management.
• Experience creating Proposals for business development.
• Advanced degree in Mechanical Engineering.

What We Offer

• A total rewards package that goes above and beyond with compensation; healthcare, wellness, and work/life benefits; career development and recognition programs.
• Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.
• Relocation assistance available.
• Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays.
• Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

This position requires onsite work in Goleta, CA: Welcome to Raytheon in Goleta, CA. This position requires security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here:

The salary range for this role is 118,300 USD - 224,900 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class.

RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.