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Avionics Engineer - Mechanical

Firefly Aerospace in Cedar Park, TX, USA


Firefly Aerospace is a U.S. based advanced space technology developmental organization focusing on the leading edge of space systems progression. We are committed to providing economical and convenient access to space for small payloads through the design, manufacture, and operation of reliable launch vehicles. If you are great at what you do and would like to work with people who really want to make a difference, then Firefly is the place for you.


Firefly Avionics Mechanical Engineers will leverage their creative design and experience to develop mechanical components, integration hardware, and tooling for launch vehicles.  Qualified candidates will be responsible for design, analysis, hands-on fabrication, and support of environmental testing.  You will be part of the avionics team and will work closely and collaborate with all other teams across the company.


  • Design of mechanical enclosures and structural components for electronic assemblies used for aerospace and launch vehicle applications
  • Provide models, inputs, and boundary conditions for thermal analyses (steady state thermal and thermal cycling) of electronics in aerospace environments utilizing primarily conductive and convective thermal transfer
  • Provide models and inputs for the structural analysis of PCB assemblies with mechanical/structural components
  • Applicant will be responsible for design and integration of electromechanical assemblies, tooling, fixturing, and test hardware for launch vehicle electronics
  • Candidate will be responsible for development of 3D CAD designs, 2D manufacturing drawings, and technical documentation including presentations, test plans, and reports
  • Work with the PCB design team to influence mounting strategies, mechanical keepouts, hole size and spacing, shielding for RF signals, PCB copper weights, and thermal interfaces to the PCB assembly.
  • Involvement with connector selection, placement, and interfaces for PCB assemblies.
  • Ensure proper grounding and ground paths for avionics subassemblies



  • Bachelor of Science in mechanical engineering or aerospace engineering
  • 3+ years of mechanical engineering experience designing complex components and assemblies via internships, professional industry experience, or academia
  • 3+ years of 3D CAD design and drafting experience
  • Experience conducting thermal analyses of electronic components


  • Hands on experience with integration of electronics and cabling in airborne vehicles is desired
  • Proficiency with Autodesk products, NX, analysis tools, and ANSYS
  • Experience with multilayer PCB enclosure design
  • Experience with various design features and calculations for mechanical packaging of electronics including vent analyses, EMI/EMC mitigation strategies, multicomponent tolerance stack-up calculations, bolt load calculations, etc.
  • Understanding of basic subsystems of a launch vehicle and how avionics integrate within the vehicle and interface with instrumentation
  • Experience designing for CNC machining, as well as selecting appropriate materials and finishing processes
  • Experience in performing thermal and structural analyses, simulations, and calculations, preferably for aerospace applications


To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Firefly Aerospace, Inc. is an Equal Opportunity Employer; employment with Firefly is governed based on merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Posted date: 19 days ago

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