LiquidPiston · 15 hours ago
Design Engineer Internships - Summer 2026
LiquidPiston is a fast-growing propulsion technology company reinventing the internal combustion engine. They are seeking Design Engineer Interns to support hands-on component and subsystem design for rotary engines, collaborating closely with senior engineers in a prototype-heavy environment.
Industrial EngineeringManufacturingMechanical Engineering
Responsibilities
Support conceptual and detailed design of rotary engine components (housings, rotors, seals, bearings, combustors, cooling systems, etc.) using SolidWorks or similar CAD tools
Create and modify 3D models, assemblies, and detailed drawings following ASME standards
Assist in design analysis using hand calculations, basic FEA (structural/thermal), and collaboration with simulation engineers
Participate in rapid prototyping: prepare files for additive manufacturing (polymer/metal), CNC machining, or in-house fabrication
Support design reviews, tolerance stack-ups, and manufacturability assessments
Help iterate designs based on test results, simulation feedback, or manufacturing constraints
Contribute to fixture/tooling design for engine assembly or testing
Document designs, changes, and findings in reports, Asana tasks, or shared drives
Collaborate across mechanical, manufacturing, controls, and test teams
Qualification
Required
Currently pursuing a Bachelor's or Master's degree in Mechanical Engineering, or a closely related field (rising junior/senior or graduate level preferred)
Strong proficiency in SolidWorks (or equivalent: Fusion 360, Creo, CATIA) for solid modeling, assemblies, and drawings
Solid fundamentals in mechanical design, mechanics of materials, thermodynamics, and manufacturing processes
Hands-on mindset — comfortable with prototyping, basic machining, or 3D printing
Excellent problem-solving skills and attention to detail
U.S. person status (citizen or permanent resident) preferred due to defense/aerospace-related projects
Ability to thrive in a fast-paced, small-team environment with quick iteration cycles
Preferred
Prior project experience with engines, rotaries, high-performance vehicles, Formula SAE, UAVs, or robotics
Exposure to GD&T, tolerance analysis, or design for manufacturing/assembly (DFM/DFA)
Basic FEA experience (SolidWorks Simulation, ANSYS, or similar)
Familiarity with additive manufacturing workflows or topology optimization
Interest in internal combustion engines, hybrid systems, or advanced propulsion
Previous internship or co-op in mechanical design, automotive, or aerospace
Company
LiquidPiston
LiquidPiston develops advanced internal combustion engines through its patented thermodynamic cycle and engine technologies.
Funding
Current Stage
Growth StageTotal Funding
$25.97MKey Investors
Adams Capital Management
2021-10-01Equity Crowdfunding
2020-11-01Series Unknown
2020-01-12Equity Crowdfunding· $1.07M
Recent News
LiquidPiston
2025-10-29
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