Raytheon Technologies

Senior Principal Mechanical Engineer (Onsite)

Raytheon Technologies$145K — $276K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Degree in STEM field with 10 years experience or advanced degree with 7 years experience.
  • Expertise in electronics packaging for reliability in harsh environments.
  • Knowledge in electronics/processor system design with COTS/MOTS components.
  • Proficient in GD&T and ASME drawing standards for production hardware.
  • Experience with 3D solid modeling tools like Creo for mechanical design.

Responsibilities

  • Lead mechanical design of airborne RF and digital electronics from concept to production.
  • Act as the mechanical technical authority ensuring project alignment with objectives.
  • Communicate technical status and risks to leadership; present design reviews.
  • Develop requirements, documentation, verification plans, and test artifacts.
  • Provide subsystem-level mechanical solutions for thermal, structural, and vibration challenges.
  • Collaborate with cross-functional teams to deliver integrated hardware solutions.
  • Mentor junior engineers and guide cross-functional teams on technical matters.

Benefits

  • Opportunities for relocation assistance are available.
  • Commitment to a values-driven work environment focusing on safety and collaboration.
  • Eligible for comprehensive benefits including medical, dental, and life insurance.
Full Job Description

Date Posted:

2026-07-16

Country:

United States of America

Location:

US-CA-GOLETA-H01 ~ 6380 Hollister Ave ~ BLDG H01

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

As a Senior Principal Mechanical Engineer in the Electronic Warfare Mechanical Design Hardware Department, you will lead the design and development of airborne RF and digital processor subsystems from early concept through production deployment. This role requires deep expertise in electronics packaging, thermal and structural analysis, manufacturing processes, and high reliability hardware development.

What You Will Do

  • Lead mechanical design and development of airborne RF and digital electronics subsystems from concept to production.
  • Serve as the mechanical technical authority (REA/IPTL) to ensure alignment with technical, cost, and schedule objectives.
  • Communicate technical status and risks to executive leadership; present at internal and customer design reviews.
  • Develop requirements, design documentation, trade studies, verification plans, test artifacts, and technical presentations.
  • Own subsystem level mechanical solutions capable of meeting demanding thermal, structural, and vibration requirements.
  • Collaborate with cross functional teams in Electrical, Systems, Manufacturing, and Supply Chain to deliver integrated hardware.
  • Mentor junior engineers and provide technical guidance across the matrixed team.
  • Support hardware integration, verification, and production readiness activities within secure program environments.
  • Contribute to proposal efforts, including cost estimates and technical volume content.
  • Occasional travel (10 620%) to Raytheon facilities, suppliers, or customer sites is expected.

Qualifications You Must Have

  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience or an advanced degree in a related field and minimum 7 years experience.
  • Experience in electronics packaging for high reliability environments and in supporting hardware through environmental qualifications (vibration, shock, thermal).
  • Working knowledge of electronics/processor systems design and development utilizing COTS/MOTS components and products.
  • Experience with GD&T and ASME drawing standards appropriate for production level hardware.
  • Experience with 3D solid modeling tools such as Creo/ProEngineer or similar for mechanical design and documentation.

Qualifications We Prefer

  • Experience in leadership in mechanical design and development of defense-related electronic systems, including subsystem lead/REA/IPTL or similar technical authority experience.
  • Experience across the full engineering lifecycle: bidding, design, implementation, delivery.
  • Experience in earned value management (EVMS) and associated engineering tracking and metrics.
  • Background in Electronic Warfare, radar, RF subsystems, or airborne electronics.
  • Thermal and structural analysis experience using FEA tools.
  • Knowledge of CCA/PCB integration, cabling/harness design, and RF isolation.
  • Experience conducting PDR/CDR/TRR reviews and presenting technical data to customers.
  • Proposal development experience, including BOEs and technical volumes.
  • Experience in root cause analysis and corrective actions within production environments.
  • Knowledge of parts management and materials/process engineering.
  • Success working in fast-paced, dynamic product development environments.

What We Offer

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

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 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:

#LI-TR1

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 145,600 USD - 276,800 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 candidate6 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 company6 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

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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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