Internship - Propulsion Engineering - Spring 2027

Firefly Aerospace • Cedar Park, TX

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About The Position

Firefly Aerospace offers year-round, engineering-focused internship opportunities at its Texas locations. Current undergraduate and graduate students, as well as new graduates, are encouraged to apply. Interns support Responsible Engineers through all stages of component and system design, including preliminary concepts, sizing, material testing, detail design, architecture layout, drawing creation, manufacturing, testing, and data review.

The role focuses on propulsion engineering across mechanical, fluid, and thermal disciplines. Interns develop solutions to challenging problems and are expected to bring creativity, flexibility, and effective communication to a multidisciplinary and multicultural team. The posting also describes prior intern projects involving propulsion and fluid systems, engine tooling, thermal hardware, vacuum nozzle testing, and engine valves.

Requirements

• Current undergraduate or graduate student earning a degree in mechanical engineering, aerospace engineering, or a related field.
• Strong engineering fundamentals in thermal, structural, and fluid analysis.
• Demonstrated ability to deliver on tight schedules, including when unconventional and creative solutions are needed.
• Hands-on fabrication experience using common power tools in work, home, or school projects.
• Ability to work occasional night shifts.
• Ability to work collaboratively in an integrated team, including frequent interactions with technicians, engineers, and managers.
• Must be a U.S. citizen, lawful permanent resident, protected individual under 8 U.S.C. 1324b(a)(3), or eligible to obtain required U.S. Department of State authorizations, to comply with U.S. space technology export regulations including ITAR.

Responsibilities

• Develop innovative design concepts to solve problems related to launch vehicle and spacecraft programs.
• Apply engineering principles and fundamentals to develop solutions to technically challenging problems in the internship focus area.
• Support Responsible Engineers through component and system design, material testing, manufacturing, testing, and data review.

What This Job Offers

• Career Level: Intern
• Education Level: No Education Listed