Principal Mechanical Engineer - Hardware Technologies (Onsite)

RTX•El Segundo, CA
•$118,300 - $224,900•Onsite

About The Position

Collins Aerospace, an RTX company, is seeking a Principal Mechanical Engineer for its Resilient Connectivity Products Hardware Technologies department. The role develops technical solutions to complex problems throughout the product life cycle, including proposal, design, manufacture, integration, and test of electronic systems, enclosures, and module assemblies for aerospace and defense applications. The engineer works with minimal direction or supervision and has considerable latitude in determining technical objectives. The position is based onsite in El Segundo, California. U.S. citizenship is required because the role involves access to U.S.-only data systems and requires the ability to obtain and maintain a U.S. government security clearance. An active Secret clearance is required after day one. The role is sign-on bonus eligible.

Requirements

  • Experience designing and developing hardware from concept definition through detailed design and transition to production or product support.
  • Demonstrated experience in mechanical design, product development, material selection, and manufacturing processes.
  • Experience designing hardware to meet EMI and TEMPEST compliance requirements.
  • Experience reading detailed engineering drawings and specifications, and detailed understanding of Geometric Dimensioning & Tolerancing.
  • Typically, a STEM degree and at least 8 years of relevant experience, or an advanced degree in a related field and at least 5 years of experience.
  • Ability to obtain and maintain a U.S. government-issued security clearance; U.S. citizenship is required.
  • Active and existing security clearance required after day one.

Nice To Haves

  • Active and transferable U.S. government-issued security clearance before start date.
  • Proficiency with CREO, Solidworks, or a similar CAD tool.
  • Experience designing machined parts, including material selection, tolerancing, and consideration of machining capabilities and limitations.
  • Experience in mechanical systems packaging, materials, thermal analysis, and structural analysis.
  • Experience applying design-for-manufacturability (DFM) and design-for-producibility (DFP).
  • Experience in mechanical design and development of multilayer digital, analog, and RF circuit card assemblies.
  • Experience with interconnect design techniques between components, modules, chassis, and subsystems.
  • Experience with cooling techniques for circuit cards and chassis.
  • Experience supporting design of Special Test Equipment and tooling required for IV&V and production efforts.
  • Experience developing environmental qualification test plans.
  • Professional exposure to Earned Value Management System (EVMS) or a similar cost and schedule tracking system.
  • Knowledge of quality management systems such as ISO 9001 and AS9100.
  • Experience as a Mechanical Lead Design Engineer or Integrated Product Team Lead.
  • Experience supporting proposal and cost estimation for hardware pursuits.

Responsibilities

  • Design, document, implement, integrate, and test mechanical hardware in accordance with system requirements.
  • Solve complex technical problems using ingenuity, creativity, and sound technical judgment.
  • Collaborate with subject matter experts to support thermal and structural analysis.
  • Conduct and participate in internal and external peer reviews, technical meetings, and program meetings.
  • Provide support to testing, subcontractors, and the factory.
  • Apply mechanical engineering best practices and common standards in accordance with RTX processes.
  • Contribute to product development, drawing generation and release, and incorporation of drawing changes as part of a small team.
  • Work with Program Management, Systems Engineering, Supply Chain, customers, and other disciplines to develop and manage objectives and requirements for hardware pursuits and projects.
  • Manage cost and schedule requirements for assigned tasks.
  • Work independently and collaboratively as part of a diverse team.
  • Use new technologies, methodologies, tools, and processes to improve hardware development, integration, and test efficiencies.

Benefits

  • Medical, dental, and vision insurance
  • Three weeks of vacation for newly hired employees
  • 401(k) plan with 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 pet, home and auto, additional life and accident, critical illness, group legal, and identity theft protection coverages
  • Birth, adoption, and parental leave benefits
  • Fertility and family planning benefits
  • Adoption assistance
  • Autism benefit
  • Employee assistance plan, including up to 10 free counseling sessions
  • Wellness rewards program
  • Virtual doctor visits
  • Child and elder care services
  • Second opinion medical service
  • Possible relocation assistance
  • Flexible spending accounts
  • Flexible work schedules
  • Employee Scholar Program
  • Paid time off and holidays
  • Potential annual short-term and/or long-term incentive compensation
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service