Component and Sub-Assembly Technician

Firefly Aerospace

Firefly Aerospace

Texas, USA
Posted on Saturday, February 4, 2023


Firefly Aerospace Inc. ("Firefly") is an American end-to-end space transportation company committed to providing economical and convenient access to space for small payloads through the design, manufacture, and operations of reliable launch and spacecraft vehicles. Firefly’s launch vehicles utilize common technologies, manufacturing infrastructure, and launch capabilities, providing LEO launch solutions for up to ten metric tons of payload. Combined with Firefly’s in-space vehicles, such as the Space Utility Vehicle (SUV) and Blue Ghost Lunar Lander, Firefly provides the space industry with a single source for missions from LEO to the surface of the Moon or beyond. Firefly is headquartered in Cedar Park, TX.


Firefly Component and Sub-Assembly Technicians work closely with Fluid Systems Engineers to ensure that the build process is being performed to according to the instructions. This work primarily includes the assembly of valves, actuators, and other sub-assemblies. We are hiring for a range of experience levels from entry level to highly experienced and we encourage all interested candidates to apply.

Additional responsibilities include:

  • Test, functional verification, and troubleshooting of hydraulic and pneumatically actuated cryogenic valves, systems and components
  • Assist engineers in reviewing and developing design concepts, tooling, test hardware and providing feedback for improvements.
  • Hydrostatically and pneumatically proof components.
  • Follow, review, improve and provide feedback on work instructions for complex mechanical systems and installations
  • Precision assembly of rocket engine components: combustion devices, valves, turbomachinery, and other sub-assemblies.
  • Safely work with hazardous systems, chemicals, and high-pressure operations.
  • Root cause and diagnostic component disassembly, repair, and work
  • Clean and passivate hardware using means such as solvent/chemical, mechanical, ultrasonic, and precision cleaning methods.
  • Perform shop level maintenance and calibration of equipment such as pumps, tanks, filtration systems, scales, etc.



  • 2 to 5 years’ experience (or equivalent) in aerospace, aircraft, R&D or related industrial fields.
  • Ability to read and interpret engineering drawings and technical manuals
  • A Demonstrated high-level problem of solving skills working in a team environment.
  • Physically able to climb ladders and stairs
  • Lift and carry 50 lbs. for limited durations
  • Schedule varies depending on needs, flexibility required
  • Work nights, weekends and overtime when necessary.


  • Familiarity with tube fabrication (bend, flare, fittings, etc.) and pressurized system safet
  • Working knowledge of a variety of tube/fluid applications including GN2, GHe, hydraulics and cryogenics
  • Knowledge of various fittings such as National Pipe Thread (NPT) and AN fittings
  • Experience cleaning systems to aerospace or medical standards
  • Prior valve, actuator, and pump build experience

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