Senior Mechanical Engineer

RTX; El Segundo (CA); On-site; USD 96,000 - 182,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k) match

Paid time off

Job summary

RTX in El Segundo, CA is seeking a Senior Mechanical Engineer for the Receiver & Electronic Packaging section to design and package airborne radar subsystems.

You will develop mechanical concepts, produce 3-D models and drawings, support production and supplier fabrication, and work with RF, power, and enclosure components in a defense context.

A DoD Secret clearance is required, with relocation support for onsite employment.

Qualifications

• Bachelor’s in STEM or equivalent with 5+ years in mechanical design.
• Experience with CAD tools for detailed layouts and documentation.
• Ability to obtain/maintain U.S. security clearance; U.S. citizenship required.
• Experience supporting suppliers for unit components.

Responsibilities

• Mechanical design across hardware lifecycle from concept to production.
• Design for airborne radar subsystems including RF, enclosure, and power components.
• Create 3-D models, 2-D drawings, and Change Notices; support design specs.

Skills

Mechanical design

3D CAD modeling

RF principles

Relates to aerospace

Education

Bachelor’s in STEM

Advanced degree in Mechanical/Aerospace

Tools

CREO (Pro/E)

Job description

Date Posted:

2026-10-27

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:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

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 freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do

The Airborne Radar Mechanical Design Department is currently seeking a Senior Mechanical Engineer for the Receiver & Electronic Packaging Section in El Segundo, CA.

The person in this position will be involved in electronics packaging design for Airborne Radar Subsystems including Antenna, Receiver, Exciter, Processor and Power Supply subsystems. Tasks will include:

• Mechanical engineering throughout the hardware life cycle, including concept development, preliminary and detail design, transition to production, production support and installation.
• Designs will be for tactical airborne defense environment-based sensor systems including ground¬ based, shipboard, airborne, and space sensors.
• Typical technologies include high density printed wiring board assemblies, electronic enclosures, thermal heat exchangers, machined components, RF microwave assemblies, and power converter units, all with
• Challenging design constraints including Size, Weight, Power, and design to Cost.

What You Will Learn

• Design and release mechanical parts and systems for Receiver & Electronic Packaging and other sub-systems.
• Provide engineering support to internal operations and external suppliers.
• Create 3-D models, 2-D detail drawings, and Change Notices.
• Support creation of Design Specification and Acceptance Requirement documents.

Qualifications You Must Have

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) degree or a minimum of 5 years’ prior relevant experience, to include any combination of the following:
• Experience with completing detailed layouts and design documentation using Computer Aided Design tools
• Experience with providing support to suppliers who are fabricating the unit components and assemblies.
• 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.

Qualifications We Prefer

• Proficiency in RF principles, RF circuit card design, RF materials, manufacturing and producibility.
• Design experience in high-frequency environments, enclosure design, EMI shielding, and thermal management.
• Proficiency with CREO (Pro/E) or similar 3D solid modeling software.
• Exposure to manufacturing processes for CCAs, metal housings, and brazements; or experience in a manufacturing and assembly support role.
• Strong technical background with high technical aptitude.
• Advanced degree in Mechanical, Electrical, or Aerospace Engineering.
• Prior experience in Defense or Aerospace
• Antenna Mechanical Design Experience
• Possess active security clearance

What We Offer

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, and Innovation.

This is an onsite position and offers relocation based on candidate eligibility.

This position requires a 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: https://www.state.gov/m/ds/clearances/c10978.htm

The salary range for this role is 95,500 USD - 181,700 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 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. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

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.