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RTX

Senior Principal Mechanical Engineer

RTX

. Develop sound technical solutions to complex problems across the entire product life cycle .

Posted 11/11/2026full-timeMarlborough • Massachusetts • United StatesSenior💰 $132,400 - $251,600 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in mechanical design and development for military and aerospace applications, ensuring compliance with applicable standards while effectively communicating technical requirements and decisions. Proven ability to lead projects through the entire product life cycle, balancing risk and performance metrics.

Highest-signal resume keywords
Mechanical Design ExperiencePhased Array StructuresCREO (Pro/E) ProficiencyActive Secret DoD Security ClearanceANSI Drawing Standards Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Mechanical DesignTroubleshootingRuggedized IntegrationMetrologyStructural Analysis Techniques3D Solid ModelingInnovative Mechanical DesignHardware PackagingArray IntegrationDesign and Manufacturing Processes
Soft Skills
Excellent Communication SkillsInterpersonal SkillsAccountabilityLeadershipCollaboration
Tools & Technologies
Microsoft OfficeCREO (Pro/E)3D Solid Modeling Software
Certifications & Qualifications
U.S. CitizenshipU.S. Government-Issued Security Clearance
Industry Keywords
Military ApplicationsAerospace ApplicationsCommercial ApplicationsProduct Life CycleTechnical Solutions

Tech Stack

Tools & technologies
Assembly

About the role

Key responsibilities & impact
  • Develop sound technical solutions to complex problems across the entire product life cycle
  • Support programs from early development through transition to production
  • Lead mechanical development of radar systems and components meeting system-level performance requirements
  • Serve as technical conscience, ensuring products and processes meet applicable standards and requirements
  • Balance risk conditions and constraints while advising leadership
  • Make and remain accountable for technical decisions
  • Maintain frequent technical contact with customers and senior personnel regarding requirements, technical commitments, IRAD, and future technical needs
  • Meet cost, schedule, quality, and performance requirements for finished products
  • Work with minimal direction while determining technical objectives
  • Travel periodically to support collaboration, hardware build, and testing

Requirements

What you’ll need
  • Degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years of prior relevant experience, or an advanced degree in a related field and minimum 7 years’ experience
  • Experience in mechanical design for military, aerospace, or commercial applications
  • Experience with innovative mechanical design and troubleshooting
  • Experience with phased array structures, hardware packaging, and/or array integration for military, mechanical, or commercial applications in a collaborative environment
  • U.S. citizenship required
  • Ability to obtain and maintain a U.S. government-issued security clearance
  • Active and existing Secret DoD security clearance required after day 1
  • Experience with ANSI drawing standards and/or first-order or structural analysis techniques
  • Experience in metrology
  • Experience in ruggedized or military integration
  • Experience with CREO (Pro/E) or similar 3D solid modeling software
  • Familiarity with design and manufacturing processes of CCAs, metal housings, sheet metal, or assembly operations
  • Advanced degree in Mechanical, Electrical, or Aerospace Engineering preferred
  • Working knowledge of Microsoft Office (Word, Excel, PowerPoint)
  • Excellent verbal and written communication and interpersonal skills

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 (eligibility dependent on position and collective-bargaining coverage)