Principal Mechanical Design Engineer

RTX

Principal Mechanical Design Engineer leading design, analysis, and project management for aerospace systems in Aguadilla, PR. Working with multidisciplinary teams to deliver innovative solutions for Landing Systems.

Posted 5/22/2026full-timeAguadilla • 🇺🇸 United StatesLeadWebsite

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Design leads to investigation of field and manufacturing incidents leading to root cause and corrective action.
Assist in creating safety risk analysis and developing risk mitigation plans.
Present and communicate results to customers and program management.
Make layouts of components, calculate stack-up of detail components, and prepare major cost studies consisting of new details and/or marked prints and all supporting documentation.
Conduct design analysis on components and/or assemblies to ensure that designs are cost-effective, manufacturable, and reliable.
Conduct initial sizing, geometric optimization, and compliance verification for Landing Systems hardware (wheels, brakes, and landing gears).
Lead design trade-off analyses, balancing brake performance, durability, thermal and structural requirements, and dynamic stability.
Collaborate with internal and external teams specializing in structures, thermal analysis, and dynamics to optimize designs.
Serve as the primary liaison with customers and suppliers, addressing all design-related issues.
Maintain and enhance design tools, methodologies, and engineering databases to support multiple programs.
Collaborate with a global, cross-functional team to support both new product development and sustainment initiatives.
Manage complex projects independently in a fast-paced, dynamic environment, balancing priorities to meet business needs.
Prepare and deliver technical documentation, presentations, and reports for technical and non-technical audiences.
Occasionally travel domestically and/or internationally to support project requirements or customer engagements.

Requirements

What you’ll need

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
Demonstrated professional experience communicating in English (verbal and written).
U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.
Extensive experience in mechanical design engineering, with a proven track record of leading complex design projects.
Proficient in Siemens NX (3D CAD), CatiaV5, ANSYS Workbench or LS-Dyna (Static Structural Linear & Non-Linear Implicit FEA), and Teamcenter.
Expertise in Geometric Dimensioning and Tolerancing (GD&T), tolerance stack-up analysis, and weight analysis.
Advanced knowledge of mechanical engineering principles, including structural mechanics, thermal management, and heat transfer concepts.
Familiarity with manufacturing processes such as CNC machining, forging, and casting.
Strong experience interacting with CAD designers and Configuration Management (CM) teams.
Proficiency with Microsoft Office tools and experience preparing technical documentation and presentations.
Experience with programming tools such as Python, MATLAB, or Fortran to support engineering workflows.
Knowledge of model-based design or model-based engineering workflows.
Demonstrated project management skills, including the ability to lead multidisciplinary teams and manage priorities effectively.
Familiarity with aerospace standards and regulatory requirements.

Benefits

Comp & perks

Medical, dental, and vision insurance
Three weeks of vacation for newly hired employees
Generous 401(k) plan that includes employer matching funds
Participation in the Employee Scholar Program (ESP)
Life insurance and disability coverage
Employee Assistance Plan, including up to 8 free counseling sessions.
And more!

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

mechanical design engineeringSiemens NXCatiaV5ANSYS WorkbenchLS-DynaGeometric Dimensioning and Tolerancing (GD&T)tolerance stack-up analysisweight analysisprogramming (Python, MATLAB, Fortran)model-based design

Soft Skills

communicationproject managementcollaborationleadershipproblem-solvingpresentation skillsorganizational skillsinterpersonal skillsadaptabilityindependence