Firefly Aerospace

Internship - Propulsion - Spring 2026

Job Description

Posted on: 
2025-09-08

Responsibilities

  • Develop new innovative design concepts for launch vehicle and spacecraft programs.
  • Use engineering principles to provide novel solutions for technically challenging problems.
  • Design fluid systems for sampling exhaust gases.
  • Create fluid systems models for pressure analysis.
  • Design and fabricate engine tooling.
  • Manage the design of heatsink chambers for thrusters.
  • Oversee the design iteration of critical engine components.

Job Requirements

  • Strong engineering fundamentals in thermal, structural, and fluids analysis.
  • Current undergraduate or graduate student in mechanical or aerospace engineering.
  • Ability to deliver on tight schedules with creative solutions.
  • Hands-on fabrication experience with power tools.
  • Ability to work in a collaborative team environment.
  • Must be a U.S. citizen or eligible for required authorizations.
  • Willingness to work occasional night shifts.
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