Principal Mechanical Engineer - DoD Cleared, Onsite Tucson

RTX; San Jose (CA); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) match

Paid time off

Flexible schedules

Job summary

RTX is seeking a Principal Mechanical Engineer for its Tucson, AZ site. The role covers the full hardware lifecycle from design through production and fielding across defense and aerospace programs.

You will lead technically, collaborate across disciplines, and guide suppliers and factories worldwide to optimize mechanical solutions. The position requires a senior level engineer with GD&T, CREO, and strong cross-functional leadership; travel to suppliers and customer sites may be needed.

Qualifications

• 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.
• Experience in technical leadership across the mechanical product development lifecycle, including requirements development, trade studies, design, integration, and/or test.
• Experience working across multiple functional and discipline areas to resolve technical challenges and drive development of mechanical components and/or subsystems.
• Experience creating, releasing, and/or updating mechanical technical data packages and interpreting technical documentation in a production environment.
• Experience with CREO (or equivalent CAD tools).
• Experience with the application of Geometric Dimensioning and Tolerancing (GD&T), including basic tolerance analyses and drawing interpretation.

Responsibilities

• Perform mechanical design, development, and documentation of components, sub‑assemblies, and major end items in accordance with system requirements.
• Lead and mentor mechanical engineering teams while meeting schedule, financial, and technical objectives.
• Collaborate with structural/thermal analysts, materials engineering, quality, safety, supply chain, operations, and program leadership to develop and refine design solutions.
• Support factories and suppliers with product development, integration, troubleshooting, and obsolescence management, domestically and internationally.
• Conduct trade studies, participate in design peer reviews, and resolve technical action items.
• Apply thermal, structural, dynamic, and reliability analysis results to improve mechanical designs.

Skills

STEM degree

Technical leadership

CREO CAD

GD&T

Cross-functional work

Education

B.S. in STEM

Tools

CREO

Windchill

Job description

RTX is seeking a Principal Mechanical Engineer for its Tucson, AZ site. The role covers the full hardware lifecycle from design through production and fielding across defense and aerospace programs.

You will lead technically, collaborate across disciplines, and guide suppliers and factories worldwide to optimize mechanical solutions. The position requires a senior level engineer with GD&T, CREO, and strong cross-functional leadership; travel to suppliers and customer sites may be needed.