Aerospace Software Test Engineer III Verified today

Firefly Aerospace · Texas · Production · first seen 2026-08-07

About Firefly Aerospace

Firefly Aerospace is a space and defense technology company on a mission to reliably and repeatedly launch, land, and operate space systems from Earth to the Moon and beyond. Headquartered in north Austin, Texas, Firefly was the first commercial company to launch a satellite to orbit with 24-hour notice and the first to achieve a successful Moon landing.

The Role

As a Senior Software Engineer on the test team, you will be critical to the success of Firefly Aerospace Software for launch vehicles, spacecraft, and launch facilities. You will lead the development and implementation of comprehensive testing strategies in all-digital and hardware-in-the-loop simulation environments for Flight and Ground software. You will work closely with Flight Software, Ground Software, and Guidance Navigation and Control Software personnel to provide thorough tests before use on a launch vehicle, spacecraft, or launch site.

Your Responsibilities

  • Lead the design and architecture of complex test procedures for testing software in all-digital and hardware-in-the-loop simulation environments
  • Architect and develop robust software frameworks for automating test case execution and report generation
  • Lead and mentor team members in establishing automated testing pipelines for daily commits of new Ground and Flight Software
  • Serve as a senior technical reviewer for Merge/Pull Requests
  • Design and implement comprehensive unit test strategies
  • Interpret and ensure compliance with customer test requirements, whether internal or external, and provide technical guidance on requirement implementation
  • Develop and document requirements, designs, plans, and schedules with consideration for long-term maintainability and scalability
  • Provide accurate test development milestones and communicate them to stakeholders, identifying risks and proposing mitigation strategies
  • Champion Firefly Aerospace Software Engineering development processes and best practices, driving continuous improvement initiatives

Required Qualifications

  • Bachelor's degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience, with a strong portfolio demonstrating relevant projects and accomplishments
  • 5 to 8+ years of experience with formal software testing
  • Demonstrated leadership in software testing initiatives with proven track record of successful project delivery
  • Strong C/C++ and Python expertise with ability to mentor others
  • Extensive development experience under the Linux operating system
  • Deep knowledge of the Agile Software Development Model with experience leading agile practices
  • Proficiency with Git version control on commercial software products, including advanced workflows and branching strategies
  • Experience with test automation frameworks and CI/CD pipelines
  • Proven ability to work independently and lead technical initiatives

Preferred Qualifications

  • Expert-level C/C++ and Python development skills
  • Experience architecting and implementing test frameworks and automation solutions
  • Experience using the NASA Trick Simulation Environment
  • Contributions to open-source projects or technical publications

Export Control

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.