Raytheon Technologies

Principal Mechanical Engineer (Onsite)

Raytheon Technologies$118K — $224K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Degree in STEM with 8+ years of experience, or a related advanced degree with a minimum of 5 years of experience.
  • U.S. citizenship required for security clearance eligibility.
  • Experience in designing electronics packaging for high-reliability GPS receivers or military applications.
  • Proficient in applying GD&T and ASME standards in production.
  • Skilled in 3D solid modeling tools (e.g., Creo/Pro/Engineer) for design and documentation.
  • Experience with environmental qualifications (vibration, shock, thermal) for hardware.

Responsibilities

  • Lead mechanical development of GPS RF and digital electronics subsystems from concept to production.
  • Serve as the mechanical technical authority for assigned programs, aligning technical and cost objectives.
  • Own subsystem-level mechanical solutions for demanding environments.
  • Collaborate with Electrical, Systems, Manufacturing, and Supply Chain teams for integrated hardware solutions.
  • Represent mechanical discipline in design reviews and customer engagements.
  • Mentor junior engineers and provide technical guidance across the team.
  • Support hardware integration, verification, and production readiness activities.

Benefits

  • Medical, dental, and vision insurance
  • Three weeks of vacation for newly hired employees
  • Generous 401(k) plan with employer matching funds
  • Tuition reimbursement program
  • Student Loan Repayment Program
  • Life insurance and disability coverage
  • Optional insurance coverages available
  • Parental leave benefits
  • Access to health incentives and wellness programs
Full Job Description

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

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 subsystemsfor 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 years9 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 illnessinsurance, 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 wouldn27t be possible without the capabilities and technologies of our organization, as well as our engineers 9 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 doesn27t 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 9 the right way 9 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 9 with our customers and with each other 9 propel us all higher, again and again.

Apply now and be part of the team that27s redefining aerospace, every day.

#Hotjobs

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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 candidate27s 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 company27s 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.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

Transform Your Career

Step into a role that harnesses your skills and propels your career to new heights. Raytheon Technologies is not just about thinking big but making those big ideas happen. We provide robust career development opportunities that include comprehensive training and development programs, leadership workshops, and continuous learning through our internal platforms.

Innovate and Lead

Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

Internship and Employment Opportunities

Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

Benefits and Culture

Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

Networking and Professional Development

At Raytheon Technologies, networking and professional development are part of our DNA. We encourage our employees to engage in internal and external networking events, leadership training, and diversity initiatives that enhance their career journey.

Join Our Team

Explore the numerous positions available that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take their career to the next level.

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Prepare for Your Future

Ready to apply? Enhance your resume and prepare for your interview with our comprehensive support tools and resources. Discover the exciting and rewarding career opportunities that await at Raytheon Technologies.

SEARCH RAYTHEON TECHNOLOGIES JOBS

Join us in our mission to create a safer future and be a part of a team that values integrity, excellence, and teamwork. At Raytheon Technologies, your career is just the beginning of a lifelong journey of professional and personal growth.
Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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