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As of Jun 8, 2026, the average yearly pay for full time cryogenic engineer in the United States is $104,528.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,000.00 and $129,000.00 per year, depending on experience, location, and employer.
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Infographic showing various Full Time Cryogenic Engineer job openings in the United States as of May 2026, with employment types broken down into 94% Part Time, and 6% Temporary. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $104,528 per year, or $50.3 per hour.
ENGINEER - RESEARCH ENGINEER - Propulsion System Engineer

ENGINEER - RESEARCH ENGINEER - Propulsion System Engineer

Southwest Research Institute - Fulltime

San Antonio, TX

Full-time

Posted 5 days ago

Southwest Research Institute rating

8.8

Company rating: 8.8 out of 10

Based on 21 frontline employees who took The Breakroom Quiz

6th of 56 rated research

Job description

Who We Are: The Liquid Propulsion Team performs R&D to solve challenges and advance technology in liquid propulsion systems. We perform design, analysis, testing, and hardware delivery for launch, landing, lunar, and orbital vehicles. We do component design (PMDs/LADs, vortex breakers, tank baffles, etc.) and system level design, procurement, AI&T, and delivery.

Our range of applications cover ground equipment to vehicles, high-g to 0-g, and supercritical to cryogenic conditions. Our programs have culminated in rocket launches, Mach 6 flight, and landing on the moon! Objectives of this Role: Design, analysis, assembly, integration, testing, and delivery of liquid propulsion flight systems.

Participate at all levels including proposal and execution of flight hardware systems. Solve challenges on components and/or systems that span between the pressurant tanks, through pressurization systems, into the propellant tanks, down the feedlines, combustion, and finally out the engine nozzles. Work on multidisciplinary and flexible teams with our experts in feedline and pogo instability, slosh dynamics and control, microgravity propellant management, thermal management, pressurization modeling, and combustion.

Write technical reports, papers, proposals, and presentations to support client deliverables, technical professional organizations and SwRI business development. We empower each other towards research areas of interest and career growth. Occasionally participate in design, analysis, and testing for other fluid, thermal, and machinery projects.

Technical areas include power generation systems, energy storage, advanced cycles, and turbomachinery design and testing. Daily and Monthly Responsibilities: Be a key contributor on technical execution for propulsion system development and delivery for satellite systems. Design, analysis, procurement, AI&T, performance testing, delivery and in-service operation tasks will be included.

Perform design and analysis tasks for fluid, thermal, and machinery projects using engineering software, self-created analytical toolsets, and existing knowledge from engineering standards, technical literature, and industry techniques. Perform experimental testing and support for both component-level and system-level testing of propulsion, energy, and combustion machinery. Perform engineering and scientific research and investigations to support projects and advance the state-of-the-art.

Interpret and present findings and results to project team and clients in a concise and clear way. Provide support to more than one project in a flexible and multidisciplinary team environment. Have and demonstrate a firm grasp of engineering and scientific disciplines and applied first principles.

Learn new technical skills to complete project work. Requirements: Requires a Bachelors degree in Mechanical Engineering, Aerospace Engineering, or related engineering degree. Masters and PhD's preferred.

0-5 years: Conducting propulsion system design, analysis, assembly, integration and testing of flight hardware programs. Participation in the entire life cycle: concept, design, procurement, assembly and testing. 0-5 years: Conducting fluid and thermal system analyses using commercial or custom software, such as flow network, computational fluid dynamics, or mechanical analysis solvers.

Firm understanding of the underlying physics of fluid dynamics, thermodynamics, aerodynamics, or heat transfer. 0-5 years: Experimental test experience of propulsion and other fluid and thermal systems; including, designing, building, commissioning, operating, and analyzing data. Also familiar with common flight launch and range safety requirements and acceptance/qualification procedures.

Range safety; cryogenics; microgravity fluids; GNC familiarity; mechanical design and fabrication; computational programing/scripting; LabVIEW, PID control and data acquisition; SolidWorks; ANSYS products experience preferred. A valid/clear driver's license is required.

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