Principal Mechanical Engineer EAC & Proposal Lead

Raytheon; Tewksbury (MA); On-site; USD 101,000 - 203,000; Full time

Job summary

An established industry player is seeking a Principal Mechanical Engineer to lead innovative projects related to defense systems. This role involves formulating EAC activities, guiding mechanical development for proposals, and collaborating with cross-functional teams to ensure robust solutions. With a commitment to safety and innovation, the company offers a competitive salary and comprehensive benefits, fostering a values-driven culture. If you are passionate about engineering and want to make a significant impact in national security, this opportunity is for you.

Benefits

Relocation Support

Comprehensive Health Benefits

Retirement Plans

Paid Leave

Qualifications

• 8+ years of engineering experience in design and development.
• Proficiency in solid modeling and knowledge of GD&T standards.

Responsibilities

• Lead mechanical engineering development for proposals and design.
• Collaborate with suppliers to develop robust defense solutions.

Skills

Solid Modeling (Pro/Engineer/CREO)

GD&T and ASME Standards

Technical Writing

Presentation Skills

Engineering Problem-Solving

Education

Bachelor’s Degree in STEM

Tools

PDM/Windchill

Job description

Principal Mechanical Engineer EAC & Proposal Lead

Join to apply for the Principal Mechanical Engineer EAC & Proposal Lead role at Raytheon.

This role is based in Tewksbury, MA, and involves leading mechanical engineering activities related to Patriot Missile components, including EAC and proposal development.

Location:

MA131: Tewksbury, MA Bldg 1, Assabet, 50 Apple Hill Drive, Tewksbury, MA, 01876 USA

Date Posted:

2025-04-30

Country:

United States of America

Position Details:

• Role Type: Onsite
• Security Clearance: Active and transferable U.S. government issued security clearance (Secret level) required

About Raytheon:

Raytheon is committed to national security, bringing over 100 years of engineering expertise to develop solutions that ensure safety and security worldwide.

Department:

The Air Defense Ground Equipment (ADGE) Department specializes in mechanical design, development, and integration of platform systems, including shelter systems and hardware integration.

Key Responsibilities:

• Formulate and present Estimate-At-Completion (EAC) activities
• Lead mechanical engineering development for proposals, program start-up, requirements allocation, design, and production
• Design, develop, and document components and major end items for defense systems
• Collaborate across disciplines and with suppliers to develop robust solutions
• Guide on design standards, documentation, and analysis approaches
• Work independently to meet technical, schedule, and budget commitments
• Participate in design reviews and trade studies
• Apply technical expertise in hardware development and problem-solving

Minimum Qualifications:

• Bachelor’s degree in STEM
• 8+ years of engineering experience
• 5+ years in design, development, or support roles
• Proficiency in solid modeling (e.g., Pro/Engineer/CREO)
• Knowledge of GD&T and ASME standards
• U.S. citizenship and ability to obtain security clearance

Preferred Qualifications:

• Experience with Air and Missile Defense or military products
• Strong technical writing and presentation skills
• Proposal development experience
• Knowledge of program management tools and processes
• Experience with PDM/Windchill and manufacturing systems
• Existing secret clearance is a plus

What We Offer:

• Values-driven culture emphasizing safety, trust, respect, and innovation
• Relocation support
• Competitive salary range: $101,000 - $203,000
• Comprehensive benefits including health, retirement, and paid leave

Additional Information:

Application window closes approximately 40 days from posting, subject to change based on business needs.

RTX is an Equal Opportunity Employer, committed to diversity and inclusion.