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Salary
≈ $75k – $136k per year (Estimated)
Location
In office (Briggs)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Oct 23, 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.

RESPONSIBILITIES

  • Set up and perform tests on a wide range of small valves, mechanisms, COPVs, and other Aerospace components
  • Develop test procedures to check out and operate launch vehicle systems and subsystems
  • Develop Autonomous sequencing for test stand automation
  • Execute test plans and procedures on console, using voice comm systems and data display and control systems
  • Develop and execute system validations, activations, upgrades and other tests required to ensure your stand is ready to support testing
  • Manage test stand scheduling for operations and maintenance down time
  • Participate in resolving any issues and non-conformances that arise during operations, and support failure and anomaly investigations, troubleshooting and resolution development
  • Design and develop automated scripts that support test and launch operations
  • Work with test site and launch site responsible engineers to optimize test and launch systems designs and operation
  • Identify continuous improvement opportunities for performance, reliability, and cost
  • Ensure all operations are performed on time, safely and in a professional manner
  • Analyze and review data to ensure that hardware is operating as expected utilizing numerical data analysis tools to interpret test results

QUALIFICATIONS

Required

  • MS, or BS in Engineering or related engineering discipline
  • Minimum 3 plus years of hands-on experience with liquid rocket propulsion test operations, including test planning, execution, and data analysis
  • Experience building, troubleshooting or operating fluid systems
  • Experience with Cryogenic systems
  • Works well in a collaborative multidisciplinary environment
  • Exceptional comprehension of engineering fundamentals
  • Exceptional writing and verbal communication skills
  • Experience with 3D and 2D CAD software
  • Ability to lift 30 pounds and to be on your feet all day when required
  • Ability to work on test stands and use standard mechanical and electrical tools
  • Willingness to travel to support launch operations in California. (Max, 25%)

Desired

  • Ability to read and understand technical drawings, including GD&T and P&IDs
  • Experience with test plan generation
  • Experience with ASME B31.3
  • Experience as a Ground Controller or Vehicle Controller supporting Launch Vehicle operations
  • Experience with high pressure compressible gas systems
  • Knowledgeable with liquid fueled launch vehicle subsystems
  • Knowledgeable with Rocket Engine testing fundamentals
  • Ability to perform computations for fluid systems (e.g., pressure drop, valve timing, etc.) for liquids, cryogenic liquids, and gases
  • Independent, driven and able to develop solutions with minimal guidance and oversight
  • Able to prioritize and execute tasks in a high pressure fast-paced environment
  • Familiarity with instrumentation and instrumentation deployment methods
  • Familiarity with data acquisition and control methods, and data analysis tools

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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