{"schemaVersion":"jobsearcher.job.v1","id":"e75137f1e4ad751773bcd7b2","url":"https://jobsearcher.com/jobs/e75137f1e4ad751773bcd7b2","canonicalUrl":"https://jobsearcher.com/jobs/e75137f1e4ad751773bcd7b2","title":"Engine Test Engineer","description":"ABOUT FIREFLY AEROSPACE\nAs an end-to-end space transportation company, Firefly Aerospace is on a mission to enable our world to launch, land, and operate in space – anywhere, anytime. Our launch vehicles, lunar landers, and orbital vehicles provide government and commercial customers with full mission services from low Earth orbit to the surface of the Moon and beyond. As part of our mission to develop cutting-edge technology, we are seeking a skilled Engine Test Engineer to join our team and play a vital role in ensuring the success of our next-generation propulsion systems. This position is located at our manufacturing and test facility in Briggs, TX north of Austin, TX.\nSUMMARY\nWe are seeking an Engine Test Engineer to join our test team at our manufacturing and test facility in Briggs, TX. This role offers the opportunity to work directly with hypergolic-fueled propulsion systems and the complex ground support equipment that makes testing possible. Testing Spectre will have a direct impact on the success of future lunar missions and will ultimately drive changes to the landscape of our space industry. Specter is an engine built on site, tested on site, and operated by you to be ready to fly to the lunar surface and beyond.\nAs an Engine Test Engineer, you will take ownership of the development, qualification, and hotfire testing of the Blue Ghost lunar lander propulsion engine. You will work daily with hypergolic propellants and high-reliability ground systems to validate engine performance and ensure readiness for lunar missions.\nYour work will include designing and executing test campaigns, improving test infrastructure, and resolving anomalies in collaboration with technicians, propulsion engineers, and system specialists. You’ll be deeply involved in the hands-on setup, operation, and troubleshooting of propellant feed, pressurization, and safety systems. You will see the impact your work has on the program week-1 and will ultimately become an expert in testing and operating of the Spectre engine.\nRESPONSIBILITIES\nIntegrate, instrument, and conduct hotfire tests of the Spectre propulsion engine on Firefly’s dedicated hypergolic test stands\nWork directly with stakeholders of the Blue Ghost Lunar Lander program at Firefly Aerospace\nDevelop and execute test plans and procedures, operating console controls, data systems, and voice communication during live tests\nPerform hands-on setup and checkout of ground support systems, including propellant transfer, pressurization, and purge systems\nAnalyze and review test data to verify system performance and detect anomalies using numerical analysis tools (e.g., Python)\nSupport anomaly investigations, root cause analysis, and corrective action planning\nMost importantly, become a driving force for the development of our lunar lander propulsion capabilities\nQUALIFICATIONS\nRequired\nBS in Mechanical, Aerospace, or related Engineering discipline\nAn understanding of fluid systems involving liquid fuels, oxidizers, and pressurants\nExperience with hardware such as valves, regulators, pumps, and leak-checking procedures\nFamiliarity with data acquisition systems, instrumentation installation, and calibration\nThe ability to read and interpret P&IDs, schematics, and engineering drawings.\nComfortable working in PPE required for hypergolic operations, including respirators and chemical-resistant gear.\nAbility to lift 30 lbs and work on your feet during extended operations\nU.S. Person per ITAR requirements\nDesired\nDirect experience in rocket engine hotfire testing or lunar lander propulsion systems\nExperience with numerical methods and automation for test data processing (e.g., Python scripting)\nFamiliarity with ground support operations for propulsion system testing\nUnderstanding of hazard analysis and system safety engineering for toxic and flammable propellants\nHands-on experience with hypergolic propulsion systems or other hazardous propellant systems\nAbility to perform fluid system calculations such as pressure drop, valve timing, and propellant mass flow rates\nDemonstrated success in troubleshooting complex integrated systems under schedule pressure\nFirefly 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.\nTo 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.\nFirefly 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","company":"Firefly Aerospace","rawCompany":"firefly aerospace","city":"Briggs","state":"TX","isRemote":false,"isActive":false,"createdAt":"2026-04-15T08:20:39.013Z","occupations":[{"code":"17-2011.00","title":"Aerospace Engineers","slug":"aerospace-engineers"},{"code":"17-3021.00","title":"Aerospace Engineering and Operations Technologists and Technicians","slug":"aerospace-engineering-and-operations-technologists-and-technicians"},{"code":"17-2199.00","title":"Engineers, All Other","slug":"engineers-all-other"}],"industries":[{"code":"336415","title":"Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing","slug":"guided-missile-and-space-vehicle-propulsion-unit-and-propulsion-unit-parts-manufacturing"},{"code":"927110","title":"Space Research and Technology","slug":"space-research-and-technology"},{"code":"336414","title":"Guided Missile and Space Vehicle Manufacturing","slug":"guided-missile-and-space-vehicle-manufacturing"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Engine Test Engineer","description":"ABOUT FIREFLY AEROSPACE\nAs an end-to-end space transportation company, Firefly Aerospace is on a mission to enable our world to launch, land, and operate in space – anywhere, anytime. Our launch vehicles, lunar landers, and orbital vehicles provide government and commercial customers with full mission services from low Earth orbit to the surface of the Moon and beyond. As part of our mission to develop cutting-edge technology, we are seeking a skilled Engine Test Engineer to join our team and play a vital role in ensuring the success of our next-generation propulsion systems. This position is located at our manufacturing and test facility in Briggs, TX north of Austin, TX.\nSUMMARY\nWe are seeking an Engine Test Engineer to join our test team at our manufacturing and test facility in Briggs, TX. This role offers the opportunity to work directly with hypergolic-fueled propulsion systems and the complex ground support equipment that makes testing possible. Testing Spectre will have a direct impact on the success of future lunar missions and will ultimately drive changes to the landscape of our space industry. Specter is an engine built on site, tested on site, and operated by you to be ready to fly to the lunar surface and beyond.\nAs an Engine Test Engineer, you will take ownership of the development, qualification, and hotfire testing of the Blue Ghost lunar lander propulsion engine. You will work daily with hypergolic propellants and high-reliability ground systems to validate engine performance and ensure readiness for lunar missions.\nYour work will include designing and executing test campaigns, improving test infrastructure, and resolving anomalies in collaboration with technicians, propulsion engineers, and system specialists. You’ll be deeply involved in the hands-on setup, operation, and troubleshooting of propellant feed, pressurization, and safety systems. You will see the impact your work has on the program week-1 and will ultimately become an expert in testing and operating of the Spectre engine.\nRESPONSIBILITIES\nIntegrate, instrument, and conduct hotfire tests of the Spectre propulsion engine on Firefly’s dedicated hypergolic test stands\nWork directly with stakeholders of the Blue Ghost Lunar Lander program at Firefly Aerospace\nDevelop and execute test plans and procedures, operating console controls, data systems, and voice communication during live tests\nPerform hands-on setup and checkout of ground support systems, including propellant transfer, pressurization, and purge systems\nAnalyze and review test data to verify system performance and detect anomalies using numerical analysis tools (e.g., Python)\nSupport anomaly investigations, root cause analysis, and corrective action planning\nMost importantly, become a driving force for the development of our lunar lander propulsion capabilities\nQUALIFICATIONS\nRequired\nBS in Mechanical, Aerospace, or related Engineering discipline\nAn understanding of fluid systems involving liquid fuels, oxidizers, and pressurants\nExperience with hardware such as valves, regulators, pumps, and leak-checking procedures\nFamiliarity with data acquisition systems, instrumentation installation, and calibration\nThe ability to read and interpret P&IDs, schematics, and engineering drawings.\nComfortable working in PPE required for hypergolic operations, including respirators and chemical-resistant gear.\nAbility to lift 30 lbs and work on your feet during extended operations\nU.S. Person per ITAR requirements\nDesired\nDirect experience in rocket engine hotfire testing or lunar lander propulsion systems\nExperience with numerical methods and automation for test data processing (e.g., Python scripting)\nFamiliarity with ground support operations for propulsion system testing\nUnderstanding of hazard analysis and system safety engineering for toxic and flammable propellants\nHands-on experience with hypergolic propulsion systems or other hazardous propellant systems\nAbility to perform fluid system calculations such as pressure drop, valve timing, and propellant mass flow rates\nDemonstrated success in troubleshooting complex integrated systems under schedule pressure\nFirefly 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.\nTo 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.\nFirefly 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","datePosted":"2026-04-15T08:20:39.013Z","dateModified":"2026-04-15T08:20:39.013Z","hiringOrganization":{"@type":"Organization","name":"Firefly Aerospace","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Briggs","addressRegion":"TX","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"e75137f1e4ad751773bcd7b2"},"url":"https://jobsearcher.com/jobs/e75137f1e4ad751773bcd7b2"}}