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Raytheon · 14 hours ago

2026 ADGE Sr Principal Mech Engineer (On-Site)

Tewksbury, MA

Full-time

Onsite

Senior Level, Lead/Staff

$124K/yr - $250K/yr

12+ years exp

Raytheon is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. They are seeking a motivated and driven Senior Principal Mechanical Engineer to join their Ground Equipment Design Team, responsible for mechanical design, development, and integration of platform systems including radar and communications shelter systems.

Intellectual PropertyInternetWeb Hosting

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Lead execution of major programs within the department, including shelter mechanical design, electronic equipment integration, end-item development, vendor coordination, and the integration of power and cooling systems. Support ongoing sustainment of existing product lines

Support and lead cross-functional engineering teams, delivering solutions and services across all phases of the program lifecycle. This may include development of next-generation sensing technologies, enhancements to current products, transition to production, in-field upgrades, and vendor oversight

Lead and contribute to proposal efforts and Estimate at Completion (EAC) activities, providing strategic and technical input

Serve as a Subject Matter Expert (SME) across multiple programs, providing critical and timely support to ensure successful execution and delivery

Serve as a technical liaison to programs and Integrated Product Teams (IPTs), ensuring alignment across stakeholders

Oversee the technical performance of the design team, providing engineering guidance and project support throughout the entire product lifecycle

Support and lead Technical Data Package (TDP) development and conduct/oversee thorough peer reviews

Drive Hardware Engineering organization initiatives aimed at improving team productivity, technical execution, and overall efficiency

Lead mid- to large-sized cross-functional engineering teams as the technical execution lead across all development phases—from proposal generation and program start-up through requirements allocation, preliminary and detailed design, and into first article production

Perform complex mechanical design, development, and documentation of components, subassemblies, and major end items for defense system applications, ensuring compliance with system requirements

Provide product integration support for both domestic and international factories and suppliers

Collaborate with multidisciplinary engineering teams, non-technical stakeholders, and suppliers to develop robust design solutions and resolve technical challenges in support of production and delivery milestones

Manage and meet schedule, cost, and technical performance commitments for assigned tasks and projects

Apply deep knowledge of hardware engineering best practices to ensure technical excellence. The ability to partner effectively with Chief Engineers and technical leads is essential

Qualification

Mechanical EngineeringMechanical DesignSystem IntegrationProject ManagementCAD ToolsRoot Cause AnalysisMaterial SelectionTechnical DocumentationAnalytical SkillsCommunication SkillsInterpersonal SkillsTeam Leadership

Required

12+ years of experience in a Mechanical Engineering role, including a minimum of 8 years focused on the design and development of mechanical equipment—preferably in military or defense environments

Demonstrated experience leading engineering teams, with accountability for cost, schedule, and technical performance, along with project management experience in both budgeting and scheduling

Proven ability to collaborate effectively in an Integrated Product Team (IPT) environment, working across multiple engineering disciplines as well as with Operations, Supply Chain, Quality, IPT leadership, Program Management, and customers

Hands-on mechanical design experience, including: Performing trade studies, Developing concepts through detailed design, Supporting transition to production, Providing ongoing production and supplier support

Experience in executing Root Cause and Corrective Action (RCCA) analyses, driving cost reduction initiatives, and producing engineering white papers or technical documentation

Broad expertise in mechanical design, development, material selection, and manufacturing processes, with proficiency in CAD tools and associated Product Data Management (PDM) systems

Willingness and ability to travel domestically and internationally as required

Bachelor's degree in Mechanical Engineering or related technical discipline (required)

U.S. Citizenship is required

Ability to obtain and maintain a U.S. Secret Security Clearance

Preferred

Master of Science (MS) in Mechanical Engineering

Excellent communication, technical writing, presentation, and interpersonal skills

Working knowledge of military and commercial specifications and standards

Hands-on experience in the design, fabrication, and integration of: Electronic assemblies, Shelter assemblies, Power distribution equipment, Rack-mounted systems, Interconnects, Cables, and Harness systems

Familiarity with Agile product development methodologies

Strong analytical and advanced problem-solving skills

Proficiency in Microsoft Office Suite, including Word, Excel, PowerPoint, and Project

Experience with modern manufacturing systems and processes

Background in reliability engineering and failure analysis

Demonstrated ability to work effectively with cross-functional teams and achieve results with minimal conflict, while maintaining schedule and budget adherence

Recognized team player and self-motivated leader with strong collaboration skills

Proven team leadership experience, including leading multi-disciplinary technical teams and the ability to develop, empower, motivate, and monitor performance

Demonstrated capability to develop technical solutions to complex system requirements

Experience managing engineering budgets using Earned Value Management Systems (EVMS) and the Estimate at Completion (EAC) process

Prior experience leading or contributing to proposal development

Familiarity with Risk and Opportunity Management practices