Principal Mechanical Engineer (Onsite)
RTXAbout the role
Date Posted:
2026-04-09Country:
United States of AmericaLocation:
US-IA-CEDAR RAPIDS-131 ~ 5450 C Ave NE ~ BLDG 131Position Role Type:
OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements:
U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.Security Clearance Type:
None/Not RequiredSecurity Clearance Status:
Not RequiredThe Computing Products Engineering Department within Avionics is seeking a Principal Mechanical Engineer to support the electronics packaging design and development of high-performance communication products. These include displays, computing electronics, and networking electronics which are installed on commercial airliners, business & regional jets, private jets, and certain military and dual-purpose aircraft.
This role offers the opportunity to work in a fast-paced, collaborative, and technically rigorous environment. Successful candidates will bring strong engineering judgment, initiative, and problem-solving skills, with the ability to make meaningful contributions and thrive while tackling complex technical challenges.
What You Will Do:
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 University Degree and minimum 8 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
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 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 doct
Apply for this role
Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.
Apply Now →Generate Application KitFree account required — sign up in 30s