Mechanical Engineer II

Date Posted:

2026-06-23

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

TS/SCI without Polygraph

Security Clearance Status:

Active and existing security clearance required after day 1

At RTX, the world 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.

Raytheon is seeking an Mechanical Engineer II to join the space mechanisms team supporting mechanisms development, integration and test across multiple space programs in El Segundo, CA.

What You Will Do

• Perform mechanical component and mechanisms design on opto-mechanical systems using Creo, and support assembly, integration and test activities in a lab environment.
• Perform research on tribology in mechanisms and application of kinematics in designing and analyzing mechanical assemblies.
• Work with a team of specialized junior and senior manufacturing and mechanical engineers to support the design, build and test of EO/IR space hardware.
• Help create and/or revise opto-mechanical designs/drawings, generating assembly instructions and providing build support in conjunction with technicians and other engineering disciplines, as well as design for producibility and manufacturability.
• Present their work for peer reviews.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience.
• Experience in design and/or assembly, integration and test of flight hardware.
• Experience with commercial CAD software, such as Creo.   

Qualifications We Prefer

• Basic knowledge of motors, position feedback sensors, bearings, and gears.
• Possess strong written and oral communication skills.
• Experience in GD&T and Tolerance analysis for designs/drawings.
• Knowledge of DFMA principles and modern machining techniques.
• Prior experience in Defense or Aerospace.
• Understanding of Change Management, and processing Engineering Changes in a Product Data Management Tool.

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. 

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, Innovation, and Safety. 

• Relocation assistance available. 

Learn More & Apply Now! 

• 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 El Segundo, CA: Welcome to Raytheon in El Segundo, 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:

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