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Updated Oct 19, 2026
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Updated Oct 19, 2026
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Firefly Aerospace
Lunar systems ·
Startup · North America ·
HQ TX ·
44
open roles, verified daily
fireflyspace.com ↗
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44 open roles, newest first
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Propulsion Engineer - Alpha Turbopumps�
Verified today
Firefly Aerospace · Texas · Propulsion
Own turbopump hardware from requirements through flight operations on Firefly's Alpha launch vehicle. You will lead design and analysis of the Reaver and Lightning engine turbomachinery, collaborate with…
On site
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Propulsion Fluids Technician I -Clean Line (Tube Cleaning)
Verified today
Firefly Aerospace · Texas · Propulsion
Clean and inspect flight propulsion hardware using ultrasonic cleaning, passivation, and pressure testing. You'll work with real space hardware in a controlled cleanroom environment, performing precision…
On site
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Fluids Engineer II
Verified today
Firefly Aerospace · Texas · Propulsion
Own the complete lifecycle of critical fluid systems at Firefly's launch sites and test stands. You'll design cryogenic, propellant, and high-pressure gas systems, then work hands-on with technicians to build…
On site
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Fluids Engineer III
Verified today
Firefly Aerospace · Texas · Propulsion
You will design and build critical fluid systems for Firefly's launch pads and test stands, owning the complete lifecycle from architecture through commissioning. Work across Alpha, Eclipse, Elytra, and Blue…
On site
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Spacecraft Thermal Manager
Verified today
Firefly Aerospace · Texas · Mechanical
Lead Firefly's Thermal Engineering team across multiple spacecraft programs. You'll manage engineers, define thermal analysis standards and processes, and own the thermal control subsystem from design through…
On site
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Mechanical Engineering Lead - Avionics
Verified today
Firefly Aerospace · Texas · Electronics
Lead the design and qualification of ruggedized electronics enclosures and electro-mechanical assemblies for Firefly's launch vehicles and lunar spacecraft. You'll own the full lifecycle from concept through…
On site
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GSE Technician II
Verified today
Firefly Aerospace · Texas · Space Systems
You will build, maintain, and troubleshoot test stands and launch site equipment for rocket testing. Work with the Test Operations Team to perform stand builds, upgrades, commissioning, and cryogenic/hydraulic…
On site
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Launch Engineer IV- Fluid Systems
Verified today
Firefly Aerospace · Texas · Propulsion
Own cryogenic propellant and ground support fluid systems across Firefly's global launch portfolio from concept through live operations. You will lead design reviews, commission systems at the pad, troubleshoot…
On site
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Vehicle Integration Engineer II
Verified today
Firefly Aerospace · California · Production
Own final integration of avionics, propulsion, and structural assemblies for Firefly's launch vehicles. You will drive vehicle transport to the launch pad, troubleshoot integration issues, and work hands-on…
On site
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Vehicle Integration Engineer III
Verified today
Firefly Aerospace · Texas · Production
You will support the integration of launch vehicles through assembly, testing, and troubleshooting. Work hands-on with design and manufacturing teams to ensure proper hardware integration and vehicle…
On site
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Launch Engineer, Operations II
Verified today
Firefly Aerospace · Texas · Space Systems
Own the integrated operations layer that ties every subsystem together at Firefly's global launch portfolio. Write procedures, build automation, sit on console, and drive cross-functional decisions that safely…
On site
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Supervisor, Avionics Production - Afternoons
Verified today
Firefly Aerospace · Texas · Electronics
Supervise avionics production technicians on afternoons (3pm-11:30pm), overseeing cable harness and electrical assembly operations. You'll manage shift execution, coordinate with engineering and quality…
On site
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Launch Integration Technician III
Verified today
Firefly Aerospace · California · Production
You will stage, assemble, test and install flight hardware for the Alpha Launch Vehicle, including cable harnesses and subsystem integration. This role demands hands-on troubleshooting and close collaboration…
On site
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Test Engineer I, Component
Verified today
Firefly Aerospace · Texas · Production
Execute test procedures and validate aerospace components including valves, mechanisms, and COPVs on Firefly's Component Test Stand. Partner with engineers to develop test infrastructure, streamline operations…
On site
Early career
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Spacecraft Systems Engineer IV
Verified today
Firefly Aerospace · Texas · Space Systems
Own the system architecture, requirements flow-down, and test planning for Firefly's Blue Ghost and Elytra lunar spacecraft. You will lead design reviews, manage technical budgets across fluid, electrical, and…
On site
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Avionics Manufacturing Engineer II
Verified today
Firefly Aerospace · Texas · Electronics
You will scale Firefly's avionics production capacity, optimizing manufacturing and test processes from design release through delivery. Lead process improvements, resolve production blockers, and work with…
On site
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Avionics Manufacturing Engineer III
Verified today
Firefly Aerospace · Texas · Electronics
You will lead avionics production scaling across electronic box builds, battery builds, and cable harnesses. Remove blockers, optimize processes, implement new products, and work with design to solve…
On site
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GSE Manufacturing Engineer I
Verified today
Firefly Aerospace · Texas · Space Systems
You will own the work order process for ground support equipment fabrication, directing technicians and suppliers to deliver launch vehicle test stands, transport fixtures, and assembly jigs on time and on…
On site
Early career
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Mechanical Engineer II (Propulsion Valves)
Verified today
Firefly Aerospace · Texas · Propulsion
You will design, build, test and qualify propulsion valves and fluid components for Firefly's Alpha and Eclipse launch vehicles and lunar landers. Own the complete development lifecycle as the technical expert…
On site
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Thermal Engineer II
Verified today
Firefly Aerospace · Texas · Mechanical
Own spacecraft thermal analyses end-to-end, from model development through flight operations. You'll develop thermal control solutions, run trade studies, and support testing across Firefly's lunar and…
On site
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Spacecraft Propulsion Engineer I (Valves)
Verified today
Firefly Aerospace · Texas · Propulsion
Own the full lifecycle of propulsion valves and fluid components for Firefly's launch vehicles and lunar landers. You will design, test, and qualify high-performance hardware while leading cross-functional…
On site
Early career
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Chief Engineer - Electrical Engineering
Verified today
Firefly Aerospace · Texas · Electronics
Own electrical and avionics architecture across Firefly's spacecraft and launch vehicles. You will define power, command/data handling, and harness systems; lead design reviews; mentor teams; and drive modular…
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Electrical Engineer- Spacecraft Avionics II / III
Verified today
Firefly Aerospace · Texas · Electronics
Own the design, testing, and integration of avionics systems on Firefly spacecraft. You will lead electrical architecture development, execute test campaigns, and support assembly, integration, and on-orbit…
On site
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Payload Engineer III
Verified today
Firefly Aerospace · Texas · Payload
Own the design, analysis, and qualification of payload hardware and spacecraft interfaces for the Alpha Launch Vehicle. You will lead structural and thermal analysis, manage CAD documentation, drive testing to…
On site
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Propulsion Engineer III (Spacecraft Fluids)
Verified today
Firefly Aerospace · Texas · Propulsion
Own the full lifecycle of Blue Ghost and Elytra spacecraft fluid systems, from requirements and CAD design through flight operations. You'll lead analysis, manage development testing, and collaborate across…
On site
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Propulsion Engineer II - Spacecraft Engine Team
Verified today
Firefly Aerospace · Texas · Propulsion
You will own hypergol engine development for the Blue Ghost lunar program, from design and analysis through manufacturing, testing, and flight operations. You'll serve as Responsible Engineer for main engines…
On site
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Avionics Production Technician
Verified today
Firefly Aerospace · Texas · Electronics
Assemble high-reliability wire harnesses and electro-mechanical components for Firefly's launch vehicles, satellites, and lunar landers. You'll fabricate flight hardware, perform soldering and termination work…
On site
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Wire Harness Electrical Engineer II
Verified today
Firefly Aerospace · Texas · Electronics
You will design and integrate electrical wiring interconnect systems (EWIS) that distribute power and signals in launch vehicles and spacecraft. Own harness design from schematics through 3D CAD routing…
On site
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Vehicle Integration Technician II
Verified today
Firefly Aerospace · Texas · Production
You'll assemble, integrate, and test flight hardware for Firefly's Alpha Launch Vehicle, working with complex harnesses, avionics systems, and precision tooling. Strong aviation production background and…
On site
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Firmware Engineer II
Verified today
Firefly Aerospace · Texas · Software
Design, develop, and test embedded firmware for Firefly spacecraft microcontrollers and microprocessors. You will architect low-level drivers and communication protocols, collaborate with hardware teams, and…
On site
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Firmware Engineer III
Verified today
Firefly Aerospace · Texas · Software
Design, develop and test embedded firmware for Firefly spacecraft microcontrollers and microprocessors. You will architect low-level drivers, communication protocols, and real-time system firmware while…
On site
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Instrumentation & Controls Manager Engineering GSE
Verified today
Firefly Aerospace · Texas · Space Systems
Lead up to 10 engineers designing and deploying ground support instrumentation and control systems for launch vehicles and spacecraft. You'll oversee functional test systems, data acquisition, control panels…
On site
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Launch Engineer I (Fluids Mechanical)
Verified today
Firefly Aerospace · California · Space Systems
You will assist senior fluids engineers operating, maintaining and testing launch pad propellant and pneumatic systems. You'll grow into ownership of system segments, participate in design reviews, lead…
$93,950 to $107,000 per year
On site
Early career
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Launch Engineer II, EGSE
Verified today
Firefly Aerospace · California · Space Systems
Design data acquisition and control systems for Firefly's Alpha launch site, then operate them during testing and launch day. You own electrical systems from concept through commissioning, working with launch…
$110,151 to $130,304 per year
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Launch Vehicle Mechanisms Engineer III
Verified today
Firefly Aerospace · Texas · Space Systems
Own the design, analysis, and qualification of flight-critical moving assemblies including stage separation systems and deployment mechanisms for launch vehicles. You'll lead hardware from concept through…
On site
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Principal Fluid Systems Engineer
Verified today
Firefly Aerospace · Texas · Propulsion
Own the full lifecycle of flight fluid systems for Firefly's Blue Ghost Lunar Lander and Eclipse Launch Vehicle, from concept through launch. You'll design pressurization, propellant feed, and cryogenic…
On site
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Propulsion Engineer I
Verified today
Firefly Aerospace · Texas · Propulsion
Own the design, testing, and flight operations of main and attitude control engines for Firefly's Blue Ghost lunar program. You'll develop hypergol propulsion systems from concept through qualification…
On site
Early career
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Senior Hardware Design Engineer
Verified today
Firefly Aerospace · Texas · Electronics
Own circuit card designs for Firefly's common avionics platform used across launch vehicles and spacecraft. You'll handle schematic capture, PCB layout, component selection, and rapid prototyping for flight…
On site
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Spacecraft Electrical Engineer - Radiation Effects
Verified today
Firefly Aerospace · Electronics
You will characterize radiation environments, run test campaigns for proton and heavy ion effects, and qualify commercial parts for spaceflight. Work across hardware design teams to manage radiation risk on…
On site
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Spacecraft Propulsion Engineer II (Valves)
Verified today
Firefly Aerospace · Texas · Propulsion
Own the full lifecycle of propulsion valves and fluid components for Firefly's launch vehicles and lunar landers. You will design, test, and qualify high-performance systems from concept through production…
On site
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Spacecraft Systems Engineer II
Verified today
Firefly Aerospace · Texas · Space Systems
Own the system architecture, requirements, and test planning for Firefly's Blue Ghost and Elytra lunar landers. You'll lead cross-functional design reviews, manage technical budgets across disciplines, and…
On site
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Spacecraft Systems Engineer IV
Verified today
Firefly Aerospace · Texas · Space Systems
Own the system architecture, requirements, and test planning for Firefly's Blue Ghost and Elytra spacecraft from design through lunar mission operations. You will lead interdisciplinary teams, manage technical…
On site
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Vehicle Integration Technician
Verified today
Firefly Aerospace · Texas · Production
You will assemble and integrate Firefly's Alpha Launch vehicle, executing complex procedures on pneumatic, cryogenic, and fuel systems. Your background in aviation, automotive, or similar production will guide…
On site
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Wire Harness Designer
Verified today
Firefly Aerospace · Texas · Electronics
Design harness layouts, schematics, and manufacturing drawings for Firefly's launch vehicles and spacecraft. You'll create interconnect documentation, integrate designs into CAD models, and ensure compliance…
On site
