Principal Mechanical Engineer (Onsite) at RTX (Raytheon)

Date Posted:

2026-05-08

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

Raytheon Company, Managed by Collins Aerospace

At Collins Aerospace, our Multi-Domain Assured Navigation and Timing Applications (MANTA) organization is a growing business area in need of a qualified electrical engineer to support development and factory transition of state-of-the-art navigation products for the Government marketplace. The ideal candidate shall have a well-rounded background; one that has demonstrated experience or training in multiple aspects of mechanical engineering design. This is an individual contributor role in which the engineer is part of a cohesive team of engineers responsible for developing key subsystems for the PNT product lines.

As a Principal Mechanical Engineer you will serve as the mechanical technical authority for airborne RF and digital processor subsystems, leading hardware development from early concept through production deployment.

This is an onsite position in El Segundo, CA.

What You Will Do

• Lead the mechanical development of GPS RF and digital electronics subsystems from concept through production.

• Serve as the mechanical technical authority (REA) on assigned programs, ensuring alignment to technical, cost, and schedule objectives.

• Own subsystem-level mechanical solutions, ensuring performance in demanding thermal and high-vibration environments.

• Collaborate cross-functionally with Electrical, Systems, Manufacturing, and Supply Chain teams to deliver integrated hardware solutions.

• Represent the mechanical discipline in internal and external design reviews and customer engagements.

• Mentor and provide technical guidance to junior engineers across the matrixed team.

• Support hardware integration, verification, and production readiness activities within secure program environments.

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 or an advanced degree in a related field and minimum 5 years’ experience.

• 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

• Experience designing and developing electronics packaging solutions for high-reliability GPS Receivers or related military applications.

• Experience applying Geometric Dimension Tolerance (GD&T) and American Society of Mechanical Engineers (ASME) drawing standards to production hardware.

• Experience with 3D solid modeling tools (Creo/Pro/Engineer or similar) for mechanical design and documentation.

• Experience supporting hardware through environmental qualifications (e.g., vibration, shock, thermal).

Qualifications We Prefer

• Experience with airborne or space electronics, CCA or unit

• Experience serving as a subsystem lead, REA, or similar technical authority role.

• Experience with thermal and structural analysis methods for electronics hardware.

• Experience with CCA/PCB integration, cabling and harness design, or RF isolation features.

• Experience supporting design reviews (PDR, CDR, TRR) and presenting technical data to customers.

• Experience performing root cause investigations and implementing corrective actions in production environments.

What We Offer:

• Medical, dental, and vision insurance

• Three weeks of vacation for newly hired employees

• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option

• Tuition reimbursement program

• Student Loan Repayment Program

• Life insurance and disability coverage

• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection

• Birth, adoption, parental leave benefits

• Ovia Health, fertility, and family planning

• Adoption Assistance

• Autism Benefit

• Employee Assistance Plan, including up to 10 free counseling sessions

• Healthy You Incentives, wellness rewards program

• Doctor on Demand, virtual doctor visits

• Bright Horizons, child and elder care services

• Teladoc Medical Experts, second opinion program

• And more!

Learn More & Apply Now!Engineering & Technology:

Collins Aerospace makes modern flight possible. Of course, that wouldn’t be possible without the capabilities and technologies of our organization, as well as our engineers – a highly skilled, accomplished network that spans more than 180 sites, 24 countries and 6 Strategic Business Units (SBUs). Our industry-leading experts are setting the standards for the aerospace industry and paving the way for the future. But as new challenges present themselves, we need fresh, creative and motivated minds to overcome these hurdles, help us break barriers and achieve new levels of innovation. Do you have what it takes to join a global organization that doesn’t shy away from big opportunities? If so, we invite you to join our ranks and create the next generation of aerospace technologies. Together, we will nurture an engineering culture that values intellectual curiosity, risk takers and integrity. A place where we will challenge ourselves, our teams, and the status quo and where we will work to find a way – the right way – to achieve what others can only dream of.

**Please consider the following role type definitions as you apply for this role.Onsite: 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.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other – propel us all higher, again and again.

Apply now and be part of the team that’s redefining aerospace, every day.

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As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

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 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.

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