Spacecraft Systems Engineer III

Firefly Aerospace, Inc.; Cedar Park (TX); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health insurance

Dental and vision plans

Educational reimbursement

Flexible PTO

Relocation benefits

Job summary

Firefly Aerospace, Inc. seeks a Spacecraft Systems Engineer to design, validate, and integrate complex spacecraft subsystems for Blue Ghost and Elytra programs. You will own system-level requirements, budgets, and interfaces across engineering, manufacturing, and operations.

Join a team delivering rigorous mission planning, real-time analysis, and cross-disciplinary collaboration, supporting 12‑hour lunar mission operations and offsite testing as needed.

Qualifications

• BS in Aerospace Engineering or related field.
• Experience leading interdisciplinary teams of hardware and software engineers.
• Strong knowledge of GNC, controls, propulsion, and mission planning.
• Experience with standards and systems engineering best practices.

Responsibilities

• Create and maintain system-level designs and budgets.
• Own requirements development and interfaces, review tests.
• Lead system-level trades, design reviews, and data reviews.
• Ensure timely delivery of SRR, PDR, and inputs to CDR, MRR, TRR, LRR.
• Facilitate change control boards and risk reviews.
• Collaborate with manufacturing and integration teams.
• Travel to support offsite testing.
• Support 12-hour shifts during lunar mission operations.

Skills

Aerospace engineering

Systems engineering

Project management

GNC analysis

Communication

Education

BS in Aerospace Engineering

MS/PhD preferred

Tools

JIRA

Confluence

Bitbucket

Job description

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.

What does SciTec bring to the Firefly family?...

What does SciTec bring to the Firefly family?...

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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.

Accountability

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

Space for Your Family

• 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 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.

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. 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

We welcome you to join Firefly as a Spacecraft Systems Engineer, to leverage your creative and technical expertise for the development of Blue Ghost and Elytra spacecraft over the product lifecycle from concept through fabrication, test & flight. You will work with design engineering, manufacturing, integration, test and launch teams to ensure the production of a thoroughly tested, operationally efficient and reliable vehicle that meets system level requirements. The Systems Engineering team is accountable for requirements, interfaces, and test planning - it will be your responsibility to validate the system architecture, manage technical budgets and design configuration between departments, develop test plans, ensure verification of requirements, and support mission operations. You will be expected to speak knowledgeably about the current system configuration and provide status updates on performance, changes, schedule, and risks. It will be your job to translate program plan and engineering team’s vision into system level success. A successful candidate will be a self-starter, elevate their teammates and be passionate about the space industry.

RESPONSIBILITIES

To deliver a robust, reliable, and economical product successfully completing all mission requirements by...

• Creating and maintain system-level designs, schematics, interface control documents and performance budgets including fluid, electrical, and software architectures.e.g. ICDs, ConOps, States & Modes, Sequence Diagrams, FBD, Boundary Diagrams, Grounding/Bonding Diagrams, Mass/Power/Link/dV/etc Budgets
• Owning requirements development/flowdown, subsystem interfaces, and vehicle level test plans. Reviewing all test plans for your vehicle.
• Leading system-level trades, design reviews, and data reviews for your vehicle.Accountable for delivery of SRR, and PDR, responsible for providing critical inputs to CDR, MRR, TRR, and LRR.
• Being accountable for the resolution of any issue, failure, or NCR that impacts closure of your test plans. Includes root cause analysis and issuing of corrective actions.
• Facilitating the change control board, risk review board, deliverable tracking and effort estimates for your vehicle.
• Maintaining a strong rapport with the manufacturing and integration technicians, understanding their challenges and proposing upstream opportunities for improvement.
• Traveling to support offsite testing.
• Serving as surge capacity for the operations team during demanding missions and supporting 12 hour shifts during lunar mission operations.
• Maintaining calm under pressure, and fostering a positive, professional, and respectful working environment.

QUALIFICATIONS

Required

• BS in Aerospace Engineering or related engineering discipline required
• 6+ years of focused hands‑on experience in an interdisciplinary project management or execution role on spacecraft, equivalent work will be considered.
• Firm comprehension and demonstrated application of first principles in engineering disciplines (orbital mechanics, controls, mechanical, structural dynamics, electrical, mechatronics, materials, thermodynamics, fluid dynamics, and propulsion).
• Experience leading interdisciplinary project teams of including hardware and software engineers.
• Strong working knowledge of ASME, MIL, ASTM, and/or NASA Standards, as well as Systems Engineering best practices – able to adapt processes to meet the needs of the team.
• Exceptional communication (written and verbal), public speaking and presentation skills.
• Experience through the full lifecycle of a spacecraft mission from SRR to mission operations.
• Strong working knowledge of GNC analysis and cislunar mission planning.
• Strong working knowledge of the lunar surface environment and robotics.
• MS or PhD in Aerospace/Mechanical Engineering or equivalent technical field.
• Strong working knowledge of real time visual navigation systems for autonomous control.
• Experience designing spacecraft architectures or critical subsystems for reliability and radiation resiliency.
• Strong working knowledge of fabrication and assembly methodologies, production management tools, and quality control processes.
• Experience tailoring SMC/AFSPCM/91-710 equivalent range documents; understanding, documenting and resolving the technical implications and risks associated with the tailoring.
• Experienced on Agile Project Management using Atlassian tools (JIRA, confluence, bitbucket)
• PMP or equivalent project management experience

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.

Primary Level Salary Range:

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