Spacecraft Propulsion Test Technician II

Firefly Aerospace, Inc.; Texas; On-site; USD 60,000 - 90,000; Full time

Benefits offered by this job

Unlimited PTO

Sabbatical after 5 years

Medical, dental, vision insurance

Mental health services

Paid military leave

12 weeks maternity leave

Spouse leave 4 weeks

$20k family planning assistance

Dog-friendly workplace

$10k education reimbursement

Employee stock ownership

4% Safe Harbor 401(k) matching

Job summary

Firefly Aerospace, Inc. in Briggs, TX, is seeking a motivated Spacecraft Test Technician to join our test operations team.

This hands-on role focuses on building expertise in aerospace propulsion testing, supporting the Spectre engine and related liquid propulsion systems. You will work with experienced engineers on test setup, instrument integration, and maintenance, gaining exposure to hypergolic propulsion and safety procedures while contributing to lunar mission readiness and future space

Qualifications

• 2+ years of aerospace/related field experience.
• Reading and interpreting engineering drawings.
• Working knowledge of fluid systems and leak check procedures.
• Ability to lift 50 lbs and work flexible hours.
• Familiarity with pressurized system safety.
• Strong attention to detail and quality workmanship.
• Excellent communication and teamwork.
• Associate degree or technical certification in a relevant field (Aerospace/Mechanical).
• Experience with engine-related hardware in an aerospace environment.
• OSHA HAZWOPER certification or experience with hazardous materials.
• Knowledge of GN2, GHe, hydraulics in tube/fluid applications.
• Familiarity with hypergolic engine test/decontamination procedures.
• Experience cleaning systems to aerospace standards.
• Hands-on instrumentation (pressure, temperature, flow sensors).
• Experience with calibration of precision measurement tools.

Responsibilities

• Support integration, instrumentation, and execution of hotfire tests for the Spectre propulsion engine.
• Set up, checkout, and operate ground support equipment for propulsion tests.
• Assist engineers during propellant loading, ignition sequences, and safing operations.
• Follow and provide feedback on work instructions for complex mechanical systems.
• Clean and passivate hardware using solvent/chemical, mechanical, ultrasonic, or precision cleaning methods.
• Perform deburring and edge breaking on aerospace fittings and components.
• Calibrate and maintain test equipment and logs.
• Adhere to safety protocols for hypergolic propellant operations.
• Participate in safety reviews and operational readiness activities.
• Contribute to continuous improvement of test procedures and facility capabilities.

Skills

Aerospace experience

Engineering drawings

Instrumentation

Calibration tools

Safety compliance

HAZWOPER awareness

Team communication

Problem solving

Hydraulics & fluids

Heavy lifting

Education

Associate degree or technical certification in Aerospace/Mechanical Technology

Tools

Instrumentation calibration tools

Ground support equipment

Propellant handling safety

Job description

Firefly Aerospace, Inc. in Briggs, TX, is seeking a motivated Spacecraft Test Technician to join our test operations team.

This hands-on role focuses on building expertise in aerospace propulsion testing, supporting the Spectre engine and related liquid propulsion systems. You will work with experienced engineers on test setup, instrument integration, and maintenance, gaining exposure to hypergolic propulsion and safety procedures while contributing to lunar mission readiness and future space