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Principal Mechanical Engineer – Motor Design (Onsite)

Us-Tx-Richardsonlead
EngineeringMechanical Engineer
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Quick Summary

Key Responsibilities

Lead the conceptual and detailed design of electric motors, including rotor/stator architecture, mechanical structure, cooling systems, and material selection. Own the technical requirements,

Requirements Summary

The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S.

Technical Tools
EngineeringMechanical Engineer
2026-08-26
United States of America
US-TX-RICHARDSON-461 ~ 3200 E Renner Rd ~ RENNER BLDG 461
Onsite

Requirements

~2 min read
The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.

  • The ability to obtain and maintain a U.S. government issued security clearance is required.  U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. 

  • Previous experience in rotating machinery fundamentals including rotor and stator mechanical design, bearing selection, motor balancing and rotor containment. 

  • Previous experience in thermal management for motors including liquid or air cooling, understanding of conduction paths and understanding of heat rejection through bearings and housings.

  • Previous experience utilizing manufacturing processes for motor components and integration of motors into other mechanical systems.

  • Active possession of a U.S. government issued Secret or Top Secret clearance.

  • Application of both commercial and defense standards, including RTCA DO‑160 and MIL‑STD‑810.

  • Ability to apply industry best practices using 3D CAD tools, preferably SolidWorks or Siemens NX.

  • Previous experience conducting thermal and structural Finite Element Analysis (FEA) using Ansys Mechanical, CFD++, or Fluent.

  • Capable of interpreting and implementing ASME Y14.5 Geometric Dimensioning and Tolerancing guidelines.

  • Previous experience with fatigue, modal, random vibration, transient shock, and acoustic analyses.

  • Knowledgeable in key military standards, including MIL‑STD‑1472 and MIL‑STD‑461.

DoD Clearance: Secret
Active and existing security clearance required after day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

The Strategic Defense Solution (SDS) team in Richardson, TX is seeking a highly motivated Principal Mechanical Engineer that is passionate about the design, development, and integration of dynamic electro-mechanical systems. In this role you will serve as a technical leader and subject-matter expert responsible for architecting, developing, and validating electric motors for complex mechanical and aerospace applications. The selected candidate will also work closely with other disciplines, such as Electrical, Systems, and Test Engineering to ensure all mechanical systems and components meet requirements during all phases of our products’ lifecycle.

Nice to Have

~1 min read

Responsibilities

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    Lead the conceptual and detailed design of electric motors, including rotor/stator architecture, mechanical structure, cooling systems, and material selection.

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    Own the technical requirements, system configuration, and design strategy for development programs.

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    Communicate technical topics and issues in a clear and concise manner to both technical peers as well as non-technical team members.

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    Contributes to the design and/or selection of mechanical and electro-mechanical hardware such as motors, hydraulic pumps, bearings, and large rotating equipment.

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    Perform analysis on selected components to ensure functional requirements of equipment are met.

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    Conduct prototype build, integration, and testing activities to validate component and system level compliance with customer requirements.

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    Conduct and provide constructive feedback during peer reviews.

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    Mentor and document knowledge to provide technical domain guidance to both members of own team and beyond.

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    Work proactively and in a self-driven manner with an integrated product team (IPT) to manage project scope and budget, as well as identify risks and opportunities.

Click on this link to read the Policy and Terms

What We Offer

~1 min read

Some of our competitive benefits package includes:   

✓Medical, dental, and vision insurance
✓Three weeks of vacation for newly hired employees
✓Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
✓Tuition reimbursement program
✓Student Loan Repayment Program
✓Life insurance and disability coverage
✓Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
✓Birth, adoption, parental leave benefits
✓Ovia Health, fertility, and family planning
✓Adoption Assistance
✓Autism Benefit
✓Employee Assistance Plan, including up to 10 free counseling sessions
✓Healthy You Incentives, wellness rewards program
✓Doctor on Demand, virtual doctor visits
✓Bright Horizons, child and elder care services
✓Teladoc Medical Experts, second opinion program
✓Maybe eligible for relocation
✓And more!

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. 

Please ensure the role type (defined below) is appropriate for your needs before applying to this role.

Location & Eligibility

Where is the job
Us-Tx-Richardson
On-site at the office
Who can apply
Same as job location

Listing Details

First seen
October 3, 2026
Last seen
October 3, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
56%
Scored at
October 3, 2026

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Principal Mechanical Engineer – Motor Design (Onsite)