Top 883 Propulsion engineer Jobs in California

Propulsion Development Engineer
Hermeus —Los Angeles, CA
- $91,800 - $187,450 a year
- Full-time
- Mid-level
- Continuous improvement
- Python
- Paid parental leave
- Paid holidays
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Entry-Level Propulsion Design Engineer
Astro Mechanica —San Francisco, CA
- $115,000 - $145,000 a year
- Full-time
- Office
- Assembly
- Continuous improvement
- Paid holidays
- Health insurance
Propulsion Mechanical Engineer (Combustion) - Dropship
Pyka —Alameda, CA
- $101,000 - $149,000 a year
- Full-time
- Mid-level
- 1 year
- Communication skills
- Commuter assistance
- Paid holidays
New Graduate Engineer, Propulsion (Raptor)
SpaceX —Hawthorne, CA
- $100,000 - $115,000 a year
- Extended hours
- Data analysis skills
- Analysis skills
- Organizational skills
- Paid parental leave
- Employee stock purchase plan
Propulsion Engineer
Poseidon Aerospace —San Francisco, CA
- Full-time
- Assembly
- Senior level
- Health insurance
- Paid time off
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Propulsion Engineer - Test
Astranis —San Francisco, CA
- $125,000 - $170,000 a year
- Bachelor of Science
- Mid-level
- 3 years
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Propulsion Test Engineer
Heart Aerospace —Los Angeles, CA
- $124,000 - $216,000 a year
- Mid-level
- Analysis skills
- Electrical Engineering
Propulsion Design Engineer
Astro Mechanica —San Francisco, CA
- $125,000 - $185,000 a year
- Full-time
- Mid-level
- Office
- Assembly
- Paid holidays
- Health insurance
Mechanical Engineer II – Propulsion Spacecraft Fluid Systems
Xona Space Systems —Burlingame, CA
- $150,000 - $175,000 a year
- Full-time
- Bachelor of Science
- Mid-level
- Software development
Propulsion and Energetics Test Engineer II
Inversion —Los Angeles, CA
- $106,000 - $150,000 a year
- Extended hours
- Mid-level
- Office
- Analysis skills
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Propulsion Engineer
The Aerospace Corporation —El Segundo, CA
- $100,300 - $175,900 a year
- Full-time
- Analysis skills
- Doctor of Philosophy
- Travel
- Paid holidays
- Relocation assistance
Systems Engineer, Integrated Flight and Propulsion Control System (IFPCS)
Joby Aviation —Santa Cruz, CA
- $115,000 - $158,000 a year
- Full-time
- 5 years
- Bachelor of Science
- Engineering
- Employee stock purchase plan
- Disability insurance
Propulsion Engineer, Chamber and Nozzle (Raptor)
SpaceX —Hawthorne, CA
- $100,000 - $140,000 a year
- Email
- Mid-level
- Analysis skills
- Travel
- Paid parental leave
- Employee stock purchase plan
12d
Propulsion Transmission Engineer
Heart Aerospace —Los Angeles, CA
- $124,000 - $155,000 a year
- Engineering
- Data analysis skills
- Mid-level
Chemical Propulsion Engineer
Apex Technology, Inc. —Los Angeles, CA
- $121,000 - $165,000 a year
- Full-time
- Mid-level
- Office
- 3 years
- Paid parental leave
- Paid holidays
Propulsion Test Engineer
Mach Industries —Victorville, CA
- $80,000 - $170,000 a year
- Extended hours
- Mid-level
- 3 years
- US work authorization
- Retirement plan
Senior Propulsion Development Engineer (Thrusters)
Impulse Space —Redondo Beach, CA
- $135,000 - $155,000 a year
- Full-time
- 5 years
- Engineering
- Analysis skills
- Health insurance
- Dental insurance
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Senior Build Reliability Engineer (Propulsion)
Impulse Space —Redondo Beach, CA
- $140,000 - $170,000 a year
- Full-time
- 5 years
- ERP systems
- Analysis skills
- Health insurance
- Dental insurance
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Integration Engineer – Fluid & Propulsion Systems
Hermeus —Los Angeles, CA
- $105,750 - $169,625 a year
- Extended hours
- Mid-level
- 3 years
- Leadership
- Paid parental leave
- Health insurance
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Senior Flight Electronics & Avionics Electrical Engineer
Space Kinetic —El Segundo, CA
- $160,000 - $180,000 a year
- Full-time
- 7 years
- Laboratory experience
- Master's degree
- Relocation assistance
- Health insurance
Quick Apply

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Propulsion Development Engineer

Hermeus
Los Angeles, CA

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Job Details

Full-time
$91,800 - $187,450 a year

Benefits

Stock options
Paid parental leave
Paid holidays
Health insurance
Unlimited paid time off
401(k)
Paid time off
Parental leave
Pet insurance

Qualifications

Performance testing in mechanical engineering
Automation
Test analysis
Sensors
Python
Test Planning (Quality assurance practices)
Data analysis software

Full Job Description

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.

About The Role:

As a Development Engineer on the Propulsion team, you will be responsible for advancing engine hardware through rapid, test-driven iteration. You will operate at the intersection of hardware execution and data analysis, owning engine test campaigns and translating results into actionable engineering improvements.
This role requires strong hands-on capability, analytical rigor, and the ability to move quickly between test operations, data interpretation, and hardware problem-solving. You will play a critical role in increasing engine development velocity and reliability.

Responsibilities

Own development engine test campaigns from planning through execution and post-test analysis
Define, author, and refine engine test plans, procedures, and setpoints aligned with program objectives
Support and make decisions during live test operations, including hot-fire and subsystem testing
Identify, diagnose, and resolve test-related engine issues across hardware, instrumentation, and procedures
Standardize and improve test data review, reduction, and reporting processes
Develop Python-based tools for data processing, visualization, and automated analysis
Translate test data into clear engineering insights, including performance characterization and root cause analysis
Drive post-test reviews and ensure actionable outcomes are captured and executed
Participate in hands-on engine build, integration, and test setup activities
Author and maintain development engine work instructions, test procedures, and technical documentation
Generate, track, and resolve engineering issues through ticketing systems
Collaborate cross-functionally with design, manufacturing, avionics, and test teams to resolve system-level challenges
Ensure proper sensor selection, instrumentation setup, and data integrity during test campaigns
Contribute to continuous improvement of test infrastructure, tooling, and development processes

Requirements

Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related discipline
Hands-on experience with hardware build, integration, or test operations
Experience developing or executing engineering test plans and procedures
Proficiency in Python for data analysis and automation
Strong understanding of sensors, instrumentation, and diagnostic techniques

Preferred Skills and Qualifications

Experience with liquid rocket engines or air-breathing propulsion systems
Familiarity with high-speed data acquisition and telemetry systems
Background in thermofluids, combustion, or turbomachinery
Experience operating in fast-paced, iterative hardware development environments
Demonstrated ownership of hardware or test systems through multiple development cycles

Engineer I $91,800 - $112,200

Engineer II $114,750 - $140,250

Engineer III $138,550 - $187,450

The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

Benefits:

Health & Wellness: 100% employer-paid healthcare and pet insurance
Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
Office Perks: Weekly paid office lunches and fully stocked breakrooms

U.S. EXPORT CONTROL COMPLIANCE STATUS

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.

EQUAL OPPORTUNITY

Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to 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.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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Refine Your Search

propulsion engineer jobs in california

Propulsion Development Engineer

Entry-Level Propulsion Design Engineer

Propulsion Mechanical Engineer (Combustion) - Dropship

New Graduate Engineer, Propulsion (Raptor)

Propulsion Engineer

Propulsion Engineer - Test

Propulsion Test Engineer

Propulsion Design Engineer

Mechanical Engineer II – Propulsion Spacecraft Fluid Systems

Propulsion and Energetics Test Engineer II

Propulsion Engineer

Systems Engineer, Integrated Flight and Propulsion Control System (IFPCS)

Propulsion Engineer, Chamber and Nozzle (Raptor)

Propulsion Transmission Engineer

Chemical Propulsion Engineer

Propulsion Test Engineer

Senior Propulsion Development Engineer (Thrusters)

Senior Build Reliability Engineer (Propulsion)

Integration Engineer – Fluid & Propulsion Systems

Senior Flight Electronics & Avionics Electrical Engineer

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