ABL Space Systems

Propulsion Engineer

Long Beach, California, United States

$117-165k

Full Time

4 minutes ago

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Job description

Long Wall Company was created in 2025 to accelerate missile defense technology for the U.S. and our allies. Building on the RS1 and GS0 launch systems, Long Wall develops containerized, mass-producible missile defense systems and offers rapid, low-cost flight testing. We believe that the future of global security and stability require defensive technology that is lower cost, higher performing, better tested, and more broadly distributed than is possible today. Join us.

Propulsion Engineers at Long Wall ensure the reliable operation of rocket engines and pressurization systems, delivering robust designs that perform seamlessly through all phases of flight. Their scope spans propellant management, pressurization, attitude control, pneumatics, and engine systems. A successful Propulsion Engineer takes full ownership—driving their system from concept to flight, integrating design, analysis, testing, and production into a streamlined, high-performance solution

What we look for

Mission-Driven Problem Solvers. The aerospace frontier demands ingenuity. We want engineers who approach challenges with curiosity, embrace failure as a learning opportunity, and stay focused on delivering the best solution for the mission.
Total Ownership. We seek engineers who take full responsibility for delivering flight-ready work while recognizing that no one succeeds alone. The best engineers make their teammates better, knowing that complementary skills create force multiplication and drive mission success.

Responsibilities

Own the development of critical engine components (e.g., chamber, injector, turbopumps) and/or systems (e.g., pressurization, attitude control).
Define top-level engineering requirements aligned with business and mission objectives.
Identify and evaluate design strategies, selecting optimal approaches to meet performance requirements.
Perform system sizing and analysis using hand calculations, custom scripts, and advanced simulation tools.
Develop streamlined workflows, processes, and tools to enhance design and production efficiency.
Execute detailed design work, considering manufacturing, operational, and reliability constraints.
Lead product development, testing, qualification, and integration.
Develop production methodologies and support initial hardware builds.
Design and fabricate test hardware and production tooling to validate designs

Basic Qualifications

B.S. in any engineering discipline from an accredited university
5+ years of industry experience in a design, development, or systems role

Preferred Skills and Experience

Proficiency in CAD design software (e.g., NX, CATIA, CREO/Pro-E
Strong analytical capability using hand calculations and finite element analysis tools (e.g., ANSYS, ABAQUS, NASTRAN)
Firm understanding of manufacturing processes, GD&T, and DFM principles.
Ability to develop scripts in Python or MATLAB for automation and analysis.
Strong understanding of compressible/incompressible flow dynamics and thermodynamics.
Experience designing, fabricating, and testing aerospace hardware, including fluid systems at high pressures and extreme temperatures.
Demonstrated ability to write and execute test procedures for complex hardware operations.
Strong technical writing and communication skills for design reviews, test plans, and system documentation.

This is the lowest to highest compensation range we reasonably and in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee’s pay position within the salary range will be based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, geographic location, performance, and business or organizational needs.

ITAR Requirement

This position requires access to information protected under US export control laws, including the International Traffic in Arms Regulations and/or the Export Administration Regulations. As such, US person status (including US citizens, U.S. permanent residents, individuals granted U.S. asylum status, or individuals admitted in U.S. refugee status) is a required qualification for this position.

Equal Opportunity Employer

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), sexual orientation, gender identity and/or expression, national origin, protected veteran status, disability, genetics, or citizenship status (when otherwise legally authorized to work and access export-controlled data) and will not be discriminated against on the basis of such characteristics or any other status protected by the laws or regulations in the locations where we operate. We encourage applicants of all ages.