ZipRecruiter

Log In

1

Propulsion System Design Engineer Jobs in California

next page

Showing results 1-20

All JobsPropulsion System Design Engineer JobsPropulsion System Design Engineer Jobs in California

Propulsion System Design Engineer information

What does a propulsion system design engineer do?

A Propulsion System Design Engineer is responsible for designing, developing, and testing propulsion systems used in vehicles such as airplanes, rockets, or spacecraft. These engineers work on components like engines, turbines, and fuel systems to ensure they meet performance, safety, and efficiency standards. Their role often involves collaborating with multidisciplinary teams, conducting simulations, and overseeing prototype testing. They play a critical part in advancing technology and meeting regulatory requirements for propulsion systems.

What are the key skills and qualifications needed to thrive as a propulsion system design engineer?

To thrive as a Propulsion System Design Engineer, you need a strong background in mechanical or aerospace engineering, advanced knowledge of thermodynamics, fluid dynamics, and materials science, usually supported by a relevant degree. Familiarity with CAD software, simulation tools (such as ANSYS or MATLAB), and industry standards is typically required. Strong problem-solving abilities, attention to detail, and effective teamwork and communication distinguish top performers in this field. These skills and qualities are vital for ensuring safe, innovative, and efficient propulsion system designs that meet rigorous technical and regulatory standards.

What are some common challenges faced by propulsion system design engineers when integrating new technologies into existing systems?

Propulsion System Design Engineers often encounter challenges when integrating new technologies, such as ensuring compatibility with existing subsystems, meeting stringent safety and regulatory standards, and managing weight or space constraints. Collaboration with cross-functional teams—including structural, thermal, and controls engineers—is essential to address these issues. Additionally, rapid advancements in materials and manufacturing techniques require engineers to stay updated and adapt designs efficiently, all while maintaining reliability and performance.

What is the difference between Propulsion System Design Engineer vs Propulsion Test Engineer?

AspectPropulsion System Design EngineerPropulsion Test Engineer
Primary FocusDesigning and developing propulsion systemsTesting and validating propulsion systems
Skills & CertificationsMechanical/ aerospace engineering, CAD, system modelingTesting procedures, data analysis, troubleshooting
Work EnvironmentDesign labs, engineering offices, R&D facilitiesTest facilities, labs, on-site testing environments
Industry UsageUsed in aerospace, defense, space industriesUsed in aerospace, space, and research sectors

The Propulsion System Design Engineer focuses on creating and developing propulsion systems, while the Propulsion Test Engineer specializes in testing and validating these systems to ensure performance and safety. Both roles require engineering expertise but differ in their core responsibilities and work environments.

What are popular job titles related to Propulsion System Design Engineer jobs in California?

For Propulsion System Design Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Propulsion System Design Engineer jobs in California look for?

The top searched job categories for Propulsion System Design Engineer jobs in California are:

What cities in California are hiring for Propulsion System Design Engineer jobs?

Cities in California with the most Propulsion System Design Engineer job openings:

Propulsion System Design Engineer jobs near you
Infographic showing various Propulsion System Design Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, and 4% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Lead Propulsion Systems Development Engineer

Astra Space, Inc.

Alameda, CA • On-site

Full-time

Medical, Dental, Vision, Retirement

Re-posted 11 days ago

Job description

Astra's mission is to improve life on Earth from space by creating a healthier and more connected planet. Today, Astra offers one of the lowest cost-per-launch dedicated orbital launch services, and one of the industry's leading flight-proven electric propulsion systems for satellites, the Astra Spacecraft Engine.
The Team
The Engines team is responsible for developing, integrating, testing, and qualifying the propulsion systems that power Astra's launch vehicles. We work across the full propulsion lifecycle - from requirements definition and engine-to-vehicle integration through test planning, hot-fire execution, data review, qualification, and flight readiness.
This role sits at the intersection of engine development, launch vehicle integration, test, operations, avionics, structures, GNC, manufacturing, and supplier technical management. You will help turn a rocket engine into a reliable, integrated propulsion system that can be operated, tested, qualified, and flown.
The Opportunity
Astra is seeking a Lead Propulsion Systems Development Engineer to own the technical integration of a liquid rocket engine onto the stage of Astra's launch vehicle. This is a hands-on systems leadership role for an engineer who can connect engine-level performance, stage-level requirements, vehicle interfaces, test operations, and flight constraints into a coherent development plan.
Reporting to the Head of Propulsion, you will manage the engine and propulsion system requirements, lead key development design reviews through the Astra Development Process, and drive the technical closure of engine-to-stage interfaces. You will work closely with external suppliers, internal design and analysis teams, test engineers, manufacturing, avionics, GNC, and launch operations to ensure the propulsion system is ready for ground test, qualification, and flight.
If you enjoy high-accountability technical ownership, cross-functional problem solving, first-principles propulsion analysis, and the challenge of bringing complex hardware from design review through hot-fire test and flight readiness, this role is for you.
How You'll Fulfill Your Mission
Propulsion System Integration
  • Own the engine-to-stage integration plan for a turbopump-fed liquid propellant rocket engine, including mechanical, fluid, electrical, software, controls, thermal, operational, and safety interfaces.
  • Develop, maintain, and verify propulsion system requirements, interface control documents, verification plans, and technical closure criteria.
  • Lead cross-functional trades involving engine layout, feed system architecture, pressurization, chilldown, purge systems, start and shutdown sequencing, abort logic, operability, maintainability, and ground-test constraints.

Technical Leadership & Design Reviews
  • Organize and lead key propulsion system design reviews through the Astra Development Process, including requirements reviews, architecture reviews, preliminary and critical design reviews, test readiness reviews, and qualification reviews.
  • Drive technical decision-making across propulsion, structures, avionics, GNC, software, manufacturing, test, launch operations, safety, and supplier teams.
  • Serve as the primary technical integrator for propulsion system performance, interfaces, operations, and verification.
  • Organize and lead the technical work required to substantiate propulsion system qualification for flight.

Analysis, Modeling & Performance
  • Perform propulsion system performance analysis and system modeling for turbopump-driven liquid propellant rocket engines and integrated launch vehicle stages. Model engine and stage interactions including feed system pressure drops, transient behavior, tank pressurization, propellant conditioning, inlet conditions, mixture ratio, thrust, specific impulse, and operational margins.
  • Lead or coordinate analysis specialists to complete design trades, substantiate margins, support design reviews, and resolve technical issues discovered during test.
  • Correlate analytical models against hot-fire and system-level test data to improve predictive capability and close verification objectives.

Engine Testing and Data Analysis
  • Plan and execute engine and stage propulsion hot-fire test campaigns in collaboration with test, operations, avionics, software, GNC, and supplier teams.
  • Analyze hot-fire test data to assess propulsion system performance and conduct root cause investigations related to engine health, start and shutdown transients, feed system behavior, controls performance, and system margins.

Why We Value You
  • 10+ years of hands-on experience in rocket propulsion, launch vehicle systems, propulsion test, engine development, or closely related high-performance aerospace hardware.
  • Strong understanding of liquid propulsion system architecture, including tanks, feed systems, valves, pressurization, purge systems, chilldown, ignition, start/shutdown sequencing, and ground operations.
  • Demonstrated ability to lead cross-functional technical work across propulsion, structures, avionics, GNC, software, manufacturing, test, safety, and suppliers.
  • Experience managing requirements, interface control documents, verification plans, design reviews, test readiness reviews, and qualification evidence.
  • Ability to perform first-principles propulsion analysis and system modeling using tools such as Python, MATLAB, Simulink, NPSS, or similar engineering tools.
  • Experience analyzing test data and using it to drive design decisions, anomaly resolution, and qualification closure.
  • Bachelor's degree in Aerospace Engineering, Mechanical Engineering, or a related technical discipline.

Desired Multipliers
  • Experience integrating liquid rocket engines or propulsion systems onto a launch vehicle, test article, or flight stage.
  • Experience with turbopump-fed liquid rocket engines and the interactions between engine requirements, vehicle interfaces, inlet conditions, and test operations.
  • Direct experience with LOX/kerosene propulsion systems.
  • Experience leading propulsion system development through PDR, CDR, TRR, QR, and FRR.
  • Experience with stage-level hot-fire testing, launch operations, or flight operations.
  • Prior experience in a fast-paced startup, launch vehicle company, propulsion supplier, or hardware-rich development environment.
  • Demonstrated ability to mentor engineers and raise the technical rigor of a small, high-performing team.

The pay range for this role is: $200,000-240,000
Salary and Benefits
We're competitive in compensation and offer equity as part of the package. We have great benefits that include health, vision, dental, and 401K in comparison to other startups. We provide lunch and there's plenty of snacks and drinks to get you through the day.
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.
ITAR Requirements: This position requires compliance with U.S. Government space technology trade restrictions, specifically the International Trafficking in Arms Regulations (ITAR), Export Administration Regulations (EAR) and additional regulations governing satellite, launch vehicle, missile, and other related technologies. All jobs restricted by these regulations will be contingent upon the applicant's status as a documented U.S. Person or their ability to receive a trade license from the cognizant government agency; in addition to any required company background checks and in compliance with applicable U.S. and California laws. Similarly, positions requiring the ability to work on government contracts or a security clearance are also contingent upon the applicants ability to receive the appropriate clearance and be allowed to work on U.S. government contracts.
© Astra Space Operations, LLC. All rights reserved, Astra is proud to be an equal opportunity workplace. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, religion, color, gender identity, sexual orientation, age, disability, veteran status, or other applicable legally protected characteristics. We encourage people of different backgrounds, experiences, abilities, and perspectives to apply.
San Francisco Applicants: Astra will consider applicants with arrest and conviction records (criminal histories) in a manner consistent with the San Francisco Fair Chance Ordinance.

Apply