Principal Mechanical Engineer

RTX

. Lead mechanical teams through concept development, design, development, build, and test .

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 hardware design, particularly in ruggedized structures and radar systems, while leading teams through the product life cycle from concept to production. Possesses strong knowledge of GD&T, military standards, and advanced modeling software to ensure compliance and quality in engineering solutions.

Highest-signal resume keywords

Mechanical Hardware DesignRadar Architecture DesignGD&T (Geometric Dimensioning & Tolerances)CREO (Pro/E) 3D Solid ModelingDoD Secret Security Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mechanical Hardware DesignRadar Architecture DesignGD&T (Geometric Dimensioning & Tolerances)ANSI Drawing StandardsStructural Analysis TechniquesCREO (Pro/E) 3D Solid ModelingManufacturing and Assembly SupportElectromechanical DevelopmentCooling Systems DesignPhased-Array Radar Integration

Soft Skills

Verbal CommunicationWritten CommunicationInterpersonal SkillsTeam LeadershipCollaboration

Tools & Technologies

Microsoft Office (Word, Excel, PowerPoint)

Certifications & Qualifications

U.S. CitizenshipDoD Secret Security Clearance

Industry Keywords

Military StandardsAerospace ApplicationsCommercial ApplicationsMechanical/RF ComponentsElectronics PackagingProduct Life CycleTransition to ProductionDesign ReleaseCost and Schedule ManagementQuality Assurance

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Lead mechanical teams through concept development, design, development, build, and test
Utilize mechanical hardware design experience with ruggedized structures, interconnects, electromechanical development, cooling, or phased-array radar/electronics integration
Develop technical solutions across the product life cycle, including proposal, design, manufacture, integration, and test
Employ transition-to-production practices and lead design releases into production
Ensure products and processes meet applicable standards and requirements while removing roadblocks
Determine technical objectives with minimal direction while meeting cost, schedule, quality, and performance requirements
Lead small teams of mechanical engineers when required
Collaborate with engineering disciplines, operations, systems, quality, program offices, and customers
Support radar development programs involving phased-array radar systems, electronic modules, pedestals, power, and cooling systems

Requirements

What you’ll need

Degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years of prior relevant experience, or an advanced degree in a related field and minimum 5 years’ experience
Experience in the design of radar architecture or electronics packaging for military, aerospace, or commercial applications
Experience with GD&T (Geometric Dimensioning & Tolerances)
U.S. citizenship required
Active and existing DoD Secret security clearance required after day 1
Ability to obtain and maintain a U.S. government-issued security clearance
Experience with ANSI drawing standards and/or first-order or structural analysis techniques
Experience with military standards
Experience with CREO (Pro/E) or similar 3D solid modeling software
Knowledge of machine and design capabilities or direct experience in manufacturing and assembly support for producibility
Familiarity with design and manufacturing processes of CCAs, mechanical/RF components, metal housings, structures, and electronics assemblies
Working knowledge of Microsoft Office (Word, Excel, PowerPoint)
Verbal and written communication and interpersonal skills when working with team members and customers
Advanced degree in Mechanical, Electrical, or Aerospace Engineering preferred

Benefits

Comp & perks

Healthcare benefits
Wellness benefits
Work/life benefits
Parental leave, including paternal leave
Flexible work schedules
Achievement awards
Educational assistance
Child/adult backup care
Relocation assistance
Medical insurance
Dental insurance
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, if eligible