Principal Mechanical Engineer, Radar Electronics

Prattwhitney; Portsmouth (RI); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401(k) match

Relocation assistance

Job summary

RTX is hiring a Principal Mechanical Engineer to manage the execution and strategy for Back-End Electronics technology within the Undersea & Electronics Systems Department. You will lead mechanical design, modeling, documentation, and releases for radar back-end electronics, ensuring system performance while balancing cost and schedule.

The role requires a strong background in aerospace/mechanical design, the ability to obtain a DoD security clearance, and collaboration with cross‑functional

Qualifications

• Degree in Science, Technology, Engineering or Mathematics (STEM) and relevant experience.
• Experience in mechanical design for aerospace/military/similar applications.
• Ability to obtain and maintain a U.S. government security clearance.

Responsibilities

• Develop sound technical solutions across the product life cycle.
• Support program from early development through production transitions.
• Lead mechanical development of radar back-end electronics systems and components.
• Balance risk with cost, schedule, quality, and performance.
• Maintain periodic customer and leadership communications on requirements and commitments.
• Ensure on-time delivery and lead test and integration activities.

Skills

Mechanical design

System integration

CREO Pro/E

Education

Bachelor's degree in STEM

Advanced degree in related field

Tools

CREO(Pro/E)

Job description

Date Posted: 2026-10-07 Country: United States of America Location: US-RI-PORTSMOUTH-PS3 ~ 1847 W Main Rd ~ NIMITZ WEST BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. 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 on 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 freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

The Raytheon Hardware Engineering Organization leads the mechanical hardware design, development and production of critical defense systems. The HWE Team uses state-of-the-art tools, processes, technology, and Raytheon’s CORE principles. HWE’s capabilities encompass a broad range of technical disciplines which include engineering, prototyping, technical services, materials, processes, analysis, test, and documentation. Within the Hardware Mechanical Engineering team, the Undersea & Electronics Systems (UES) Department leads the mechanical design, development, and integration of products, including but not limited to undersea sensors and analysis, naval platforms, shipboard/ground-based processing and power equipment, and launchers.

The (UES) Department is looking for a full-time Principal Mechanical Engineer to manage the execution of the scope and future strategy associated with Back-End Electronics technology. This role will bring a blend of technical expertise, experience in mechanical hardware design, system integration skills, and program execution whether design and development or production support. As a key contributor on a mechanical or cross‑functional engineering team, you will take responsibility for component and assembly modeling, documentation, design changes, and releases processes.

What You Will Do

• Develop sound technical solutions to a wide range of complex problems related to the entire product life cycle.
• Program support and development from early development through transition to production.
• Lead the mechanical development of radar back-end electronics systems and components that achieve the performance requirements at the system level.
• Ensure balance with risk conditions and constraints while advising leadership.
• Frequent technical contact with the customer and senior personnel regarding requirements, significant technical commitments, future technical needs, etc.
• Maintain responsibility for meeting cost, schedule, quality, and performance requirements for the finished product.
• Periodic travel will be required to support collaboration, and hardware build and test.

Qualifications

You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant.
• An Advanced Degree in a related field and minimum 5 years’ experience.
• Experience in the design of mechanical design for military or aerospace or commercial applications, managing multiple concurrent technical baselines.
• Experience with hardware packaging and integration for military or mechanical or commercial applications in a collaborative environment.
• 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 Value

• Experience with ANSI drawing standards and/or first order or structural analysis techniques.
• Experience in ruggedized or military integration.
• Experience with CREO(Pro/E) or similar 3D solid modeling software.
• Leadership skills and project management for strategic decisions.
• Experience of Microsoft Office (Word, Excel, PowerPoint).
• Advanced degree in Science, Technology, Engineering or Mathematics (STEM).

What We Offer

A total rewards package that goes above and beyond with compensation; healthcare, wellness, and work/life benefits; career development and recognition programs.

• parental (including paternal) leave
• flexible work schedules
• achievement awards
• educational assistance
• child/adult backup care

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
• Innovation
• Safety

Relocation assistance available.

Employees who are working in Onsite roles will work primarily onsite.

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: https://www.state.gov/m/ds/clearances/c10978.htm

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 107,500 USD - 204,500 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.

• 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
• 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.

• 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.

Privacy Policy and Terms: Click on this link to read the Policy and Terms

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide.

It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon.

Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity.

The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.