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Engineer Aerospace Fluid Jobs (NOW HIRING)

Firefly Aerospace

WI · On-site

As an end‑to‑end space transportation company, Firefly Aerospace is on a mission to enable our ... fluid systems. Working closely with engineering, manufacturing, and integration teams to iterate ...

Parker

Assembler LG 7

North Hollywood, CA · On-site

... engineering challenges. At Parker, our team members belong, matter and make a difference. Parker Aerospace Fluid Systems Division - North Hollywood, California site was established in 1947 and ...

Blue Origin LLC

NY · On-site

Bachelor's degree in mechanical engineering, aerospace engineering, or equivalent. * 3+ years of proven experience in the design of aerospace fluid or mechanical systems. * Experience in 3D CAD ...

blueorigin

NY · On-site

Bachelor's degree in mechanical engineering, aerospace engineering, or equivalent. * 3+ years of proven experience in the design of aerospace fluid or mechanical systems. * Experience in 3D CAD ...

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How much do engineer aerospace fluid jobs pay per year?

As of Sep 13, 2026, the average yearly pay for engineer aerospace fluid in the United States is $108,638.00, according to ZipRecruiter salary data. Most workers in this role earn between $88,500.00 and $132,500.00 per year, depending on experience, location, and employer.

What is an aerospace fluid engineer?

Aerospace Fluid Engineers are professionals who specialize in the study, design, and management of fluid systems in aerospace applications, such as aircraft, spacecraft, and satellites. They work with both liquid and gas fluids to ensure efficient fuel delivery, cooling, hydraulics, and environmental control systems. Their work is crucial for the performance, safety, and reliability of aerospace vehicles, as they analyze fluid dynamics, select appropriate materials, and develop innovative solutions to complex engineering challenges. These engineers often collaborate with other specialists to integrate fluid systems into overall vehicle designs.

How do aerospace fluid engineers typically collaborate with other engineering disciplines during a project?

Aerospace Fluid Engineers frequently work alongside mechanical, structural, and systems engineers to develop and optimize fluid systems for aircraft and spacecraft. Collaboration involves regular design reviews, data sharing, and troubleshooting sessions to ensure fluid systems integrate seamlessly with overall vehicle architecture. Effective communication and teamwork are critical, as fluid engineers must align their designs with structural constraints, safety requirements, and performance goals set by other teams. This multidisciplinary approach helps streamline problem-solving and ensures that complex aerospace projects remain on schedule and within specifications.

What are the key skills and qualifications needed to thrive as an aerospace fluid engineer, and why are they important?

To thrive as an Aerospace Fluid Engineer, you need a strong background in fluid dynamics, thermodynamics, and mechanical or aerospace engineering, typically supported by a relevant engineering degree. Familiarity with computational fluid dynamics (CFD) software, CAD tools, and industry-specific simulation platforms is essential, along with professional certifications like a PE license being advantageous. Strong problem-solving abilities, attention to detail, and effective teamwork and communication skills help you excel in complex project environments. These skills ensure the safe, efficient, and innovative design and analysis of aerospace fluid systems critical to aircraft and spacecraft performance.

What are popular job titles related to Engineer Aerospace Fluid jobs?

For Engineer Aerospace Fluid jobs, the most frequently searched job titles are:

Infographic showing various Engineer Aerospace Fluid job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 87% Full Time, 9% Part Time, and 3% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $108,638 per year, or $52.2 per hour.

Principal Fluid Systems Engineer

Cedar Park, TX

Firefly Aerospace
See more jobs at Firefly Aerospaceexternal

Full-time

Medical, Dental, Vision, PTO

Re-posted 13 days ago

Key responsibilities

  • Own and lead the full lifecycle development of flight fluid systems--from concept through launch and operation.

  • Develop architectures that improve reliability, simplify manufacturing, and reduce cost and schedule risk.

  • Oversee qualification and acceptance test campaigns, including procedure development, test execution, and data review.

Firefly Aerospace rating

6.9

Company rating: 6.9 out of 10

Based on 11 frontline employees who took The Breakroom Quiz

Job description

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

The Fluid Systems team at Firefly Aerospace is responsible for all fluid subsystems across our launch vehicles and spacecraft, including our Blue Ghost Lunar Lander and Eclipse Launch Vehicle. As a Principal Propulsion Engineer, you’ll own the design, development, integration, test, and qualification of flight fluid systems. Working closely with engineering, manufacturing, and integration teams to iterate, answer questions, and close feedback loops.

This role blends deep technical ownership with cross-functional collaboration, serving as both an individual contributor and a technical mentor. The ideal candidate thrives in fast-paced, hardware-rich environments, embracing new challenges with grit, creativity, and accountability. We’re looking for engineers who are excited to roll up their sleeves and help define the future of space transportation.


RESPONSIBILITIES

• Own and lead the full lifecycle development of flight fluid systems—from concept through launch and operation.

• Develop architectures that improve reliability, simplify manufacturing, and reduce cost and schedule risk.

• Define system requirements and interface definitions for propulsion, pressurization, venting, purging, fill/drain, and other fluidic subsystems.

• Execute detailed designs using CAD and analytical tools, and coordinate closely with thermal, structural, systems, and integration teams.

• Oversee qualification and acceptance test campaigns, including procedure development, test execution, and data review.

• Lead technical risk trades, anomaly investigations, and corrective actions across engineering and production.

• Mentor early-career engineers and provide technical reviews of hardware designs, analysis, and test plans.

• Serve as the discipline owner in program architecture discussions and influence long-term roadmap for in-space servicing and reusability.


QUALIFICATIONS

Required

• Bachelor’s degree in Mechanical, Aerospace Engineering, or a related field.

• 10+ years of experience in aerospace fluid systems or propulsion.

• Proven ownership of a subsystem or major fluid component through design, build, and test.

• Strong technical foundation in pressurized systems, cryogenics, high-pressure gas, and propellant feed design.

• Proficiency in CAD, P&ID creation, and familiarity with ASME Y14.5 and aerospace standards.

• Experience conducting system-level analysis, risk trades, and root cause investigations.

• Excellent communication and collaboration skills across engineering and production teams.

Desired

• Advanced degree (MS or PhD) in engineering discipline.

• Demonstrated hands-on experience with hardware; including fluid test hardware and instrumentation

• Familiarity with in-space propulsion, NASA standards, and range safety (91-710)

• Experience with analytical tools such as GFSSP, Python, REFPROP, or thermal/fluid modeling.

• Experience working with hypergolic bi-propellants

• Understanding of propulsion engine cycles and integration with fluid systems.

• History of developing flexible solutions with partially defined requirements and changing criteria

• Ability to present technical content to internal and external review boards.


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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