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Principal Mechanical Engineer – Gearbox Design (Onsite)

RTX


Job Location:

Richardson, TX - USA

Monthly Salary: $ 204500 - 204500
Posted: 28 August 2026 (21 hours ago)
Application Deadline: 25 November 2026
Vacancies: 1 Vacancy

Job Summary

Date Posted:

Country:

United States of America

Location:

US-TX-RICHARDSON-E Renner Rd RENNER BLDG 461

Position Role Type:

Onsite

U.S. Citizen U.S. Person or Immigration Status Requirements:

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

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

At RTX the worlds largest aerospace and defense company 185000 great minds are united by purpose and inspired to make a difference solving the worlds 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 this role you will serve as a technical leader and subject-matter expert responsible for architecting developing and validating gearbox systems 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.

Sign-on Bonus Eligible

What You Will Do:

  • Lead the conceptual and detailed design of gearbox systems including gear trains bearings housings lubrication systems and supporting structure.

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

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

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

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

  • Conduct and provide constructive feedback during peer reviews.

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

  • 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.

Qualifications You Must Have:

  • 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 applying gear theory including spur helical bevel hypoid and planetary gearsets gear geometry contact ratio tooth-root stress pitting resistance etc.

  • Proven experience in designing shafts bearings and gearbox lubrication systems.

Qualifications We Prefer:

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

  • Application of commercial and defense standards such as RTCA DO160 and MILSTD810.

  • 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 MILSTD1472 and MILSTD461.

What We Offer

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 insurancecritical illnessinsurance 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!

Learn More & Apply Now

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 youll 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.

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees as they are essential to the development of our products.

At Collins the paths we pave together lead to limitless possibility. And the bonds we form with our customers and with each other -- propel us all higher again and again.

Apply now and be part of the team thats redefining aerospace every day.

#MISENG

As part of our commitment to maintaining a secure hiring process candidates may be asked to attendselect steps of the interview process in-person at one of our office locations regardless of whether the role is designated as on-site hybrid or remote.

The salary range for this role is 107500 USD - 204500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer including but not limited to the role function and associated responsibilities a candidates work experience location education/training and key skills.

Hired applicants may be eligible for benefits including but not limited to medical dental vision life insurance short-term disability long-term disability 401(k) match flexible spending accounts flexible work schedules employee assistance program Employee Scholar Program parental leave paid time off and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including but not limited to individual performance business unit performance and/or the companys performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity national origin age disability or veteran status or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans Readjustment Assistance Act.

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Required Experience:

Staff IC


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