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Senior Principal Mechanical Engineer; Onsite

Job in Cedar Rapids, Linn County, Iowa, 52404, USA
Listing for: Prattwhitney
Full Time position
Listed on 2026-06-02
Job specializations:
  • Engineering
    Mechanical Engineer, Systems Engineer
Salary/Wage Range or Industry Benchmark: 132400 - 251600 USD Yearly USD 132400.00 251600.00 YEAR
Job Description & How to Apply Below
Position: Senior Principal Mechanical Engineer (Onsite)

Senior Principal Mechanical Engineer – Computing Products Engineering, Avionics

Location:

US-IA-CEDAR RAPIDS-131 ~ 5450 C Ave NE ~ BLDG 131

What You Will Do:
  • Implement functional strategy for the team and also for the wider discipline community
  • Develop standard work to be used by all ME’s within Avionics
  • Use and apply mechanical engineering principles and techniques to design, develop, document, verify, and support computing products.
  • Contribute to hardware engineering requirements capture and analysis in area of domain or functional expertise.
  • Perform mechanical packaging design and analysis to meet challenging environmental requirements.
  • Collaborate with other disciplines on development of circuit card designs (profile, stack up, thermal/vibration considerations)
  • Lead prototype build, verification and pre-qualification testing within a cross functional team
  • Work closely with a multi-disciplinary team to ensure defined requirements are consistently met in all phases of a product's lifecycle, including supporting integration, testing, qualification, and certification of the final product.
  • Serve as a mechanical design subject matter expert in proposal preparations, internal design and customer reviews.
  • Ensure that development products are designed to meet the applicable requirements.
Qualifications You Must Have:
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
  • Demonstrated experience supporting the full product lifecycle, including participation in bid and proposal, requirement capture, design development, and production support activities.
Qualifications We Prefer:
  • Experience with Computer Aided Design (CAD). Includes working knowledge of model creation, interrogation with CAD tools like NX or Solidworks to support mechanical designs.
  • Experience with DO-160 and/or MIL-STD-810 environmental requirements
  • Proficiency with electronic product packaging requirements
  • Proficiency with the principles of heat transfer and fluid mechanics as it pertains to electronics cooling
  • Familiarity with Finite Element Analysis (FEA) and/or Computational Fluid Dynamics (CFD) and associated analysis methodologies
  • Familiarity with machined and sheet metal manufacturing methodologies
  • Knowledge of design to cost & manufacturability
  • Experience with geometric dimensioning and tolerancing (GD&T)
  • Familiarity with product certification for the FAA
Benefits:
  • 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,  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
  • And more!
Salary:

The salary range for this role is 132,400 USD - 251,600 USD.

Equal Opportunity

Employer:

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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Position Requirements
10+ Years work experience
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