2026 ADGE Sr Principal Mech Engineer - On Site

Prattwhitney; North Tewksbury (MA); On-site; USD 132,400 - 251,600; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) match

Flexible work schedules

Job summary

Prattwhitney is hiring for an engineering position in North Tewksbury, MA, focusing on mechanical design for defense systems. Candidates must have extensive experience in mechanical design, project management, and engineering leadership.

The role includes leading cross-functional teams, overseeing technical performance, and ensuring stakeholder alignment. A strong background in STEM and relevant tools is essential. The position offers competitive benefits including medical, dental, and a significant salary range between $132,400 and $251,600.

Qualifications

• Minimum of 10 years of relevant experience, or 7 years with advanced degree.
• Experience in mechanical equipment design and development.
• Proven team leadership with accountability for cost and schedule.

Responsibilities

• Lead execution of major programs across all development phases.
• Oversee technical performance of design teams.
• Support product integration with domestic/international factories.

Skills

Mechanical design

Team leadership

Cost and schedule management

Technical documentation

Collaboration within teams

CAD expertise

Education

Degree in STEM

Advanced degree in Mechanical Engineering

Tools

Creo CAD

Windchill PDM

Job description

Position Overview

The position is onsite in Tewksbury, MA. Only U.S. citizens are eligible, and an active DoD Secret clearance is required.

Department Overview

The Air Defense Ground Equipment Mechanical Design Department is responsible for the mechanical design, development, and integration of critical defense platform systems, including radar and communications shelters, electronic subsystems, launchers, hardware integration, and system interconnects.

Responsibilities

• Lead execution of major programs and mid‑ to large‑scale cross‑functional engineering teams across all development phases.
• Serve as SME and technical liaison to programs/IPTs, ensuring stakeholder alignment.
• Oversee technical performance of design teams and provide lifecycle engineering guidance.
• Lead proposal efforts, EAC activities, and manage schedule, cost, and technical commitments.
• Drive TDP development, peer reviews, and hardware engineering process improvements.
• Perform complex mechanical design, development, and documentation for defense systems.
• Support product integration with domestic/international factories and suppliers.
• Collaborate with multidisciplinary teams, Chief Engineers, and suppliers to deliver robust, production‑ready solutions.

Qualifications

• Degree in STEM (Science, Technology, Engineering, or Mathematics) with a minimum of 10 years of relevant experience, or an advanced degree with a minimum of 7 years of experience.
• Mechanical equipment design and development experience, preferably in defense or military environments.
• Proven engineering team leadership with accountability for cost, schedule, and technical performance; project budgeting and scheduling experience.
• Experience collaborating within Integrated Product Teams (IPTs) and cross‑functional organizations, including customer engagement.
• Hands‑on mechanical design from trade studies and concept development through production transition and supplier support.
• Experience conducting RCCA, driving cost reduction initiatives, and producing technical documentation and white papers.
• Broad expertise in mechanical design, materials, manufacturing processes, CAD, and PDM systems.

Preferred Qualifications

• Advanced degree in Mechanical Engineering or a related hardware systems field.
• Electronic packaging design experience (subsystems, modules, CCAs, PWBs, interconnects for RF/digital/power).
• Design, fabrication, and integration of electronic assemblies, shelters, racks, and PDUs.
• Knowledge of military/commercial specifications and ASME Y14.5 GD&T.
• Experience with ECAD processes, interconnects, cables/harnesses, and material selection/finishes.
• Proficiency in Creo CAD, Windchill PDM (or similar), and configuration/change management.
• Strong Microsoft Office skills with excellent communication and technical writing abilities.
• Self‑driven team player who can manage multiple priorities and travel as needed.

Benefits

Salary Range: $132,400 – $251,600 USD.

• Medical, dental, and vision insurance.
• Life insurance.
• Short‑term and long‑term disability coverage.
• 401(k) match.
• Flexible spending accounts.
• Flexible work schedules.
• Employee assistance program.
• Employee Scholar Program.
• Parental leave.
• Paid time off and holidays.
• Potential short‑term and long‑term incentive compensation programs based on performance and business unit criteria.

EEO Statement

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. RTX provides affirmative action in employment for individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.