Aerospace Software Test Engineer III

Firefly Aerospace, Inc.

Austin (TX)

On-site

USD 120,000 - 160,000

Full time

6 days ago

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Benefits offered by this job

Unlimited PTO for exempt employees

3-month sabbatical for every 5 years

Medical, dental, vision, life, and dis

Mental health services

Paid military leave

12 weeks paid maternity leave

4 weeks paid spouse leave

$20k towards family planning

Dog friendly workplace

Job summary

Firefly Aerospace, Inc. in Austin, TX is seeking a Senior Software Engineer for the test team to lead testing strategies across all-digital and hardware-in-the-loop environments for Flight and Ground software.

You will mentor junior engineers, collaborate with Flight, Ground, and Guidance teams, and drive automated testing pipelines to ensure robust verification before launches.

Qualifications

Bachelor’s degree in Computer Science, Engineering, or related technical field, or equivalent practical experience.
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.

Responsibilities

Lead the design and architecture of complex test procedures for testing our 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 and 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.

Skills

C/C++

Python

Leadership

Agile

Git

Linux

Testing

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

Git

NASA Trick

CI/CD pipelines

Job description

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Life at Firefly

At Firefly, we’re focused on making space attainable for everyone – including you! Each team member’s passion, dedication, and innovative ideas have a direct impact on fueling our successful trajectory into space. And there’s no shortage of meaningful projects to work on at Firefly. With launch, lunar, and orbital vehicles, Firefly has a diverse line of business with opportunities to get hands‑on experience launching rockets, operating in space, and landing on the Moon.

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Our Values

Headquartered in the Lone Star State, Firefly’s hardworking team reflects Texas’ GO BIG culture in everything we do. We build big, achieve big, and dream big. We’re building launch vehicles and spacecraft to provide rapid, reliable space access. We’ve achieved some incredible wins, including the first successful commercial Moon landing. And we’re dreaming bigger than this planet with ambitions to Mars, Venus, and beyond. Our core values are what drive us along the way.

Passion

Fireflies believe in perseverance, responsiveness, and mentoring others with a focus on inspiring a better future.

Fireflies act with integrity and take ownership of our actions, commitments, decisions, and outcomes.

Fireflies work in alignment across teams and communicate clearly with mutual respect for one another.

Fireflies deliver high-quality work through technical rigor and timely disciplined execution for our customers.

We take care of our Fireflies with some of the best benefits in the industry. Our mission to make space for everyone starts with our employees and allowing them to make space for their family, their career, and their future.

Space for You

Unlimited PTO for exempt employees
3-month sabbatical for every 5 years of service
Medical, dental, vision, life, and disability insurance
Mental health services
Paid military leave
12 weeks paid maternity leave
4 weeks paid spouse leave
$20k towards family planning: fertility, surrogacy, adoption
Dog friendly workplace

Space for Your Career

$10k/year towards trade school or college
Ongoing coaching to advance leadership skills
Employee-ownership with stock bonuses
4% Safe Harbor 401(k) matching
$10k bonus for home purchase in Cedar Park, Texas

Job Openings

From launch technicians to propulsion engineers, Firefly has open roles across the company. We’re looking for passionate, bright innovators to join our team and help make space an achievable dream for everyone.

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. As the partner of choice for critical space missions, Firefly is the first commercial company to launch a satellite to orbit with 24-hour notice and the first company to achieve a successful Moon landing. 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

Your role as a Senior Software Engineer on the test team will be critical to the success of Firefly Aerospace Software for use on 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 our Flight and Ground software. This will include leading software verification efforts where you will act as a senior technical reviewer and mentor for software changes.

You will be part of the Aerospace Software Engineering Group and will work closely with Flight Software, Ground Software, Guidance Navigation and Control Software personnel to provide thorough tests for our software before use on a launch vehicle, spacecraft, or launch site. You will also mentor junior engineers and contribute to the strategic direction of the testing organization.

RESPONSIBILITIES

Lead the design and architecture of complex test procedures for testing our 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 and 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

QUALIFICATIONS

Required

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

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

Firefly offers outstanding benefits for our employees, including generous health, dental and vision plans with low plan deductibles, parental leave, 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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