Sr. Principal Mechanical Engineer, Harness and Interconnect - Remote

Date Posted:

2026-01-21

Country:

United States of America

Location:

US-AZ-REMOTE

Position Role Type:

Remote

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 Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world. 

The Mechanical Engineering team leads the design, development and production of mechanical hardware at Raytheon. We use state-of-the-art tools, processes, technology, and CORE principles. Mechanical Engineering’s capabilities encompass a broad range of technical disciplines which include engineering, manufacturing, technical services, materials, processes, analysis, test and documentation.

The Precision Control Actuation Systems (PCAS) department is part of the Hardware Engineering Organization and comprises approximately 185 engineers located in Tucson, AZ, and Huntsville, AL. Our team specializes in two main core areas: Control Actuation Systems (CAS) and Mechanism Design and Development, as well as Harness and Interconnect (H&I) Design and Development. The PCAS department supports the product lifecycle from concept through production.

This is a remote role.

What You Will Do

•  P5 - At this grade level, you will be expected to work autonomously, have expert or mastery level knowledge within the Harness and Interconnect domain, and exercise strategic vision to influence the functional and organizational strategies of the PCAS organization beyond assigned program work.​
• The PCAS organization provides ample opportunities for mentoring.  P5 (SME) PCAS mechanical engineers are exposed to a variety of design activities including engineering builds, hardware integration, hardware tuning, and hardware verification.​
• The PCAS organization provides a strong technical learning environment with a dedicated Harness and Interconnect technology pyramid comprised of engineering technologists.  PCAS mechanical engineers are provided the opportunity for direct access to these subject matter experts, fostering accelerated technical growth.​

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
• Minimum 10 years experience in Harness and Interconnect design and/or development
• Experience with any of the following electrical wiring schematics, interconnect diagrams, and/or harness manufacturing processes.

Qualifications We Prefer

• 20 years of prior relevant experience unless prohibited by local laws/regulations. A minimum of 15 years of experience in Harness and Interconnect.
• Experience with Aerospace Systems ​
• Experience with development of H&I requirements, H&I architecture, requirements risk, requirements verification and validation, system performance & function, safety and environmental compliance.​
• Strong analytical and problem-solving skills for addressing complex design challenges.
• ⁠Ability to innovate and optimize designs for performance, manufacturability, and cost. ​
• ⁠Familiarity with military and aerospace standards (e.g., AS50881, MIL-STD-810, IPC/WHMA-A-620).
• Proven ability to deconstruct higher level tasks into discrete lower-level work packages and tasks​
• Experience working in engineering teams, including electrical, mechanical, and systems engineers.
• Proficient in Engineering processes and procedures​
• Leadership skills to mentor junior engineers, provide technical guidance, and drive team success.
• Strong verbal and written communication skills for presenting designs, leading technical discussions, and documenting design processes.
• Expertise in selecting MIL-SPEC connectors (e.g., MIL-DTL-38999) for aerospace and defense applications, ensuring environmental and mechanical durability.
• Strong understanding of current, voltage, and signal integrity requirements for connector selection.
• Advanced capability in selecting wire gauges (AWG) based on current, voltage, and thermal considerations.
• Expertise in specifying insulation (e.g., PTFE, FEP) and shielding for high-temperature and EMI-sensitive environments.
• Familiarity with aerospace standards (e.g., AS22759) and compliance in wire selection.

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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.

Learn More & Apply Now! (Optional)

• Please consider the following role type definition as you apply for this role.

• Remote: This position currently is designated as remote. Employees who are working in remote roles will work primarily offsite (from home) but may be expected to travel to the site location as needed. The successful candidate for this role will be required to reside and work from one of the 50 U.S. states (excluding U.S. territories).

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 132,400 USD - 251,600 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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