Principal Mechanism Design Engineer

RTX

. Develop technical solutions for mechanism and machine design challenges .

Posted 11/10/2026full-timeMarlborough • Massachusetts • United StatesLead💰 $107,500 - $204,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in mechanical design, particularly in actuation systems and machine elements, with a strong focus on kinematic and dynamic analysis. Proficient in 3D modeling and Geometric Dimensioning and Tolerancing, ensuring compliance with industry standards and effective collaboration across multidisciplinary teams.

Highest-signal resume keywords

Mechanical Design ExperienceActuation Drive Systems DevelopmentGeometric Dimensioning And TolerancingCREO (Pro/E) 3D Solid ModelingANSYS Mechanical FEA Modeling

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Kinematic AnalysisDynamic AnalysisMachine Element DesignFree-Body Diagrams GenerationStructural Analysis TechniquesThermal AnalysisControl Actuator Systems DesignFeedback Control SystemsMechanism SynthesisPower Management

Soft Skills

Excellent Communication SkillsInterpersonal SkillsLeadership SkillsCollaboration SkillsProblem-Solving Skills

Tools & Technologies

CREO (Pro/E)ANSYS MechanicalMicrosoft Office Suite

Certifications & Qualifications

DoD Secret Security ClearanceU.S. Government-Issued Security Clearance

Industry Keywords

Aerospace EngineeringMilitary ApplicationsCommercial ApplicationsElectromechanical Control SystemsBearing Configurations

About the role

Key responsibilities & impact

Develop technical solutions for mechanism and machine design challenges
Design motion-control actuation systems and subsystems, including custom actuators and gear trains
Perform kinematic and dynamic analysis of mechanisms
Design, select, and analyze machine elements and bearings
Lead mechanical development of radar systems and components meeting system-level performance requirements
Develop requirements and concepts, evaluate trade studies, and generate free-body diagrams
Perform first-order structural and thermal analysis, gear analysis, material assessment and selection, and tolerance/margin analysis
Support 3D modeling, datum selection, geometric dimensioning and tolerancing, drawing development, manufacturing processes, build tooling, testing, and test equipment development
Participate in design reviews, prototype building, verification testing, integration, and production support across the product life cycle
Collaborate with electrical, systems, radar systems, flight science, manufacturing, supply chain, suppliers, and other teams
Provide technical leadership and ensure products and processes meet applicable standards and requirements
Balance risks and constraints while advising leadership
Work with minimal direction and considerable latitude in determining technical objectives
Maintain frequent technical contact with senior personnel

Requirements

What you’ll need

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 mechanical design for military, aerospace, or commercial applications
Experience developing actuation drive systems, including power management, motor and/or gear train sizing and implementation
Experience with associated bearing configurations for optimization of friction, position accuracy, and/or load capacity
Experience with electromechanical control actuation systems
Experience in mechanism synthesis and analysis
Experience with control actuator systems requirements, architecture, requirements risk, design, and system performance
Experience with feedback control systems, including sizing, testing and integration, design-for-manufacturing, and kinematic and dynamic simulation and analysis
Proficient in Geometric Dimensioning and Tolerancing per ASME Y14.5
Ability to deconstruct higher-level tasks into discrete lower-level work packages and tasks
Proficient in generating free-body diagrams
Experience with ANSI drawing standards and/or first-order or structural analysis techniques
Experience with CREO (Pro/E) or similar 3D solid modeling software
Experience with ANSYS Mechanical or similar FEA modeling software
Technical background with high technical aptitude
Working knowledge of Microsoft Office (Word, Excel, PowerPoint)
Excellent verbal and written communication and interpersonal skills when working with team members and customers
Advanced degree in Mechanical, Electrical, or Aerospace Engineering preferred
U.S. citizenship required because only U.S. citizens are eligible for the required security clearance
Active and existing DoD Secret security clearance required after day 1
Ability to obtain and maintain a U.S. government-issued security clearance

Benefits

Comp & perks

Healthcare, wellness, and work/life benefits
Parental (including paternal) leave
Flexible work schedules
Achievement awards
Educational assistance
Child/adult backup care
Relocation assistance
Medical, dental, and vision insurance
Life insurance
Short-term disability
Long-term disability
401(k) match
Flexible spending accounts
Employee assistance program
Employee Scholar Program
Paid time off
Holidays
Annual short-term and/or long-term incentive compensation programs (eligibility dependent on position and collective-bargaining coverage)