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Salary
≈ $77k – $147k per year (Estimated)
Location
In office (Cedar Park)
Seniority
Middle · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 20, 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.

SUMMARY

A Firefly Electrical Engineer - Spacecraft Avionics is responsible for the design, development, and testing of avionics systems on our spacecraft. In this role, you develop the avionics systems, requirements verifications, and component/system level test campaigns. You also help developed and design the HIL system in order to verify functionality before spacecraft integration, interfacing with software, mechanical, propulsion, fluids, and structures teams to ensure the proper functionality of the integrated solution. You are responsible for developing and executing development schedules, system-level test and operations plans, and supporting launch day and on-orbit operations. You will be responsible for assisting the AIT team in proving-out functionality of all avionics systems onboard the integrated vehicles. Previous spacecraft experience is highly preferred and electrical hands on experience is required. This role relies on strong electrical engineering principals in both analog and digital.

RESPONSIBILITIES:

  • Own the entire process of designing the electrical architecture, testing and integrating avionics components onto the spacecraft
  • Support assembly, integration, and test (AIT), launch integration, and on-orbit operations
  • Intuitively understand the intention behind design decisions, and direct assembly and test operations based on those intentions
  • Write and execute vehicle assembly procedures and electrical system functional validation processes
  • Lead high-level, functional design and development of avionics systems for the current and future spacecraft
  • Develop design verification, qualification, and acceptance test plans, and coordinate with the other avionics and manufacturing engineers and technicians to execute
  • Recommend spacecraft function and reliability upgrades based on experience
  • Requirement writing and verification for spacecraft avionics

QUALIFICATIONS

Electrical Engineer - Spacecraft Avionics II Basic Qualifications:

  • Bachelor of Science in Electrical Engineering
  • 3 years of experience working with aerospace component development, testing, integration, or operations
  • Experience in electrical engineering in both analog and digital circuit design, including usage of test equipment such as logic analyzers, oscilloscopes, signal generators, electronic loads, multimeters, and interpreting electrical schematics
  • Experience performing trade studies and sensitivity studies to select the best architecture option
  • Hands-on experience with prototyping circuits and testing
  • Requirement writing and verification
  • Experience in technical writing, proper documentation, and SOP creations
  • Candidate must have a proactive mentality with the ability to self-start
  • Experience with Python

Electrical Engineer - Spacecraft Avionics III Basic Qualifications:

  • Bachelor of Science in Electrical Engineering
  • 5 years of experience working with aerospace component development, testing, integration, or operations
  • Experience in electrical engineering in both analog and digital circuit design, including usage of test equipment such as logic analyzers, oscilloscopes, signal generators, electronic loads, multimeters, and interpreting electrical schematics
  • Experience performing trade studies and sensitivity studies to select the best architecture option
  • 2 yrs Hands-on experience with prototyping circuits and testing
  • 2 yrs Requirement writing and verification
  • Experience in technical writing, proper documentation, and SOP creations
  • Candidate must have a proactive mentality with the ability to self-start
  • Experience with Python

Preferred Qualifications:

The ideal candidate will possess one or more of the following:

  • Experience with aerospace avionics system design, development, testing, or operations
  • Experience with Power engineering, design, budgeting, and test
  • Experience in software engineering, especially C, C++, Python, and Labview
  • Experience with project planning, subcontractor management, and other project management skills
  • Experience in industry standard root cause corrective analysis techniques, such as fault tree and fishbone analysis
  • Experience in PCB and Hardware design
  • Experience in the V-model design methodology
  • Experience in Failure Mode Effect Analysis (FMEA)
  • Experience in GND and Bonding design of spacecraft
  • Experience with environmental analysis and testing, including thermal cycling, thermal vacuum, shock, and vibration
  • Familiar with NASA GEVS or SMC-016 environmental testing
  • Familiar with MIL-STD461 EMC Testing
  • Ability to collaborate effectively with other engineering disciplines and regulatory authorities.

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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