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Salary
≈ $60k – $110k per year (Estimated)
Location
In office (Cedar Park)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 25, 2026. First seen by Alion on Oct 21, 2026.

Overview
Company
Impact
Profile match
Firefly Aerospace is an American space and defense technology company specializing in the development of small- to medium-lift launch vehicles, lunar landers, and orbital transfer vehicles. Headquartered in Cedar Park, Texas, the company provides rapid and reliable space access through its Alpha rocket, upcoming Eclipse launch systems, Blue Ghost lunar landers, and Elytra orbital vehicles. By combining advanced in-house manufacturing, rapid iteration, and cost-effective modular technologies, it delivers end-to-end mission services supporting commercial satellite deployment, scientific lunar exploration, and national security operations across cislunar space.

ABOUT FIREFLY AEROSPACE

Firefly Aerospace is a space and defense technology company that enables our world to launch, land, and operate in space - anywhere, anytime. As the partner of choice for critical space missions, Firefly is the only commercial company to launch a satellite to orbit with 24-hour notice and the only company to achieve a successful Moon landing. Our launch vehicles, lunar landers, and orbital vehicles provide government and commercial customers with full mission services from low Earth orbit to the Moon and beyond. Headquartered in north Austin, Texas, Firefly is looking for passionate, hardworking innovators to join our team and help fuel our successful trajectory into space.

SUMMARY

Firefly Avionics Mechanical Engineers will leverage their creative design and experience to develop electronics enclosures, mechanical components, integration hardware, tooling, and test fixtures for launch vehicles. Qualified candidates will be responsible for design, analysis, hands-on build/integration, 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.

RESPONSIBILITIES

  • Design ruggedized electronics packaging and structural components for PCB assemblies used for launch vehicle and spacecraft applications
  • Design electro-mechanical assemblies for thermal and dynamic environments, EMI/EMC compatibility, and radiation resistance
  • Perform thermal analyses (steady state thermal and thermal cycling) of electronics in aerospace environments
  • Perform modal and vibration analyses of electronic assemblies with mechanical/structural components
  • In addition to electronics packaging, candidate will be responsible for design of test fixturing and ground support hardware for launch vehicle and spacecraft electronics
  • Support vibration, shock, and thermal test campaigns of products designed
  • Candidate will be responsible for development of CAD designs, part drawings, assembly drawings, and technical documentation including presentations and reports
  • Work with the PCB design team to specify mounting strategies, mechanical keep outs, hole size and spacing, PCB copper weights, connector type and placement, and thermal interfaces to the PCB assembly

QUALIFICATIONS

Required

  • Bachelor of Science in mechanical engineering, aerospace engineering, or related field
  • 3+ years of engineering experience designing electronics packaging and electro-mechanical assemblies via internships, professional industry experience, or academia
  • 3+ years of 3D CAD design and drafting experience

Desired

  • Hands on experience with design and integration of electronics packaging
  • Proficiency with NX or similar CAD software and analysis tools such as ANSYS
  • Experience with multi-layer PCBA enclosure design
  • Experience with various design features and calculations for mechanical packaging of electronics including vent analyses, EMI/EMC mitigation strategies, multi-component tolerance stack-up calculations, bolt load calculations, Steinberg PCB solder joint fatigue, 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 and sheet metal production, as well as selecting appropriate materials and finishing processes
  • Experience with environmental analysis and test including thermal cycle, thermal vacuum, shock, and vibration
  • Understanding and knowledge of GD&T

Firefly offers outstanding benefits for our employees, including generous health, dental and vision plans with low plan deductibles, parental leave, relocation benefits, educational reimbursement, short term disability, and flexible PTO options.

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.

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