Principal Mechanical Engineer - Proposal Lead

Job Description

Date Posted: 2025-07-30

Country: United States of America

Location: Marlborough, MA Building 1 1001 Boston Post Road Building 1, Marlborough, MA, 01752 USA

Position Role Type: Onsite

U.S. , 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. are eligible for a security clearance

Security Clearance: DoD Clearance: Secret

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 Raytheon Hardware Engineering Organization leads the hardware design, development and production support of a wide breadth of air, land, sea, and space systems. The Hardware Engineering team strives to be the premier organization for mechanical design and development through our world class people and technology - creating trusted, innovative solutions to make the world a safer place. Hardware Engineering’s capabilities encompass a broad range of technical disciplines which include engineering, technical services, materials, processes, analysis, test, and documentation.

Within the Hardware Engineering Organization, the Undersea, Sensors & Structures (USS) Department leads the mechanical design, development, and integration of multiple sets of products, including but not limited to undersea sensors and analysis, naval platforms, shipboard/ground-based processing and power equipment, and launchers.

The USS department is looking for a Principal Mechanical Engineer to lead the Undersea, Sensors & Structures (USS) Department team efforts relative to supporting pursuits in the Ground-based and Shipboard Radar supporting electronics technology space. Lead activities will include executing proposal activities, guiding metric development, and peer reviewing proposal positions.

This position is in Marlborough, MA. (On-site position)

The primary focus of this role is responsibility for leading, documenting and delivering on-time proposals for the Mechanical Engineering scope associated with our growing Radar electronics portfolio, based on leadership experience and backed by established historical metrics. This includes generating the proposal, writing the Basis of Estimates (BOEs), scheduling functional management reviews, securing management approval, and communicating results back to the internal customer.

Complimentary responsibilities of this role include leadership of Mechanical Engineering project execution across the portfolio, focusing on Ground-based and Shipboard Radar Electronics Systems.

What You Will Do:

• Estimation of Mechanical Engineering labor required to perform tasks as defined by customer and internal proposal documents

• Understanding and communication of project plans, earned value approach, and Risk and Opportunity

• Understanding the technical baseline and requirements to establish a basis for proposal scope

• Routinely present proposals to leadership

• Works closely with the section leaders in development and selection of applicable metrics from which to leverage bids and document Tests of Reasonableness

• Identify bid assumptions, risks and opportunities

• Evaluate proposed design, procurement and build schedules to establish attainability

• Participate in organizational proposal reviews

• Support Department team members in peer review and mentoring of proposal execution

• Lead and periodically generate formal Basis of Estimates (BOE’s) for auditable bids

• Lead program execution across the Department portfolio in conjunction with proposal efforts

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.

• Eight years of professional experience, and five years in task leadership and program execution.

• Experience in developing cost proposals, program plan, and execution metrics

• Strong communication skills with peers and leadership

• The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. are eligible for a security clearance.

Qualifications We Prefer:

• Experience leading proposals with the defense sector serving US Government and foreign customers

• Strong presentation skills

• Demonstrated experience across the hardware lifecycle (R&D, design, production, sustainment, technical refresh, obsolescence redesign.)

• Capable of prioritizing requirements, tasks, and issues – leading to rapid and efficient proposal execution

• Ability to synthesize and distill technical data and present material in a timely manner to leadership and team

• Effective presence and influential leadership capability, with the ability to interact with senior levels of leadership effectively - including customer, Raytheon, and suppliers

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!

• Please consider the following role type definition 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, they are essential to the development of our products.

The salary range for this role is 101,000 USD - 203,000 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, long-term, 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 , , , , , , , , or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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