Engine Performance Internship - Fall 2026

Engine Performance Internship-LiquidPiston
Location: This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026. (relocation assistance not available)
Employment Type: Full-time Internship (Fall 2026)
Compensation: Paid

About LiquidPiston:
LiquidPiston, Inc. (LPI) is an advanced technology company developing compact, high-performance rotary engines based on a novel thermodynamic cycle. Our propulsion systems are enabling new capabilities across defense, aerospace, and commercial applications. Through innovative engine architecture and cutting-edge engineering, LiquidPiston is redefining what is possible in power generation and propulsion.
Position Overview:
LiquidPiston is seeking a motivated and technically curious Engine Performance Intern to join our engineering team. This internship provides a unique opportunity to work alongside experienced engineers developing next-generation rotary engines and propulsion systems. The selected candidate will support engine testing, performance analysis, calibration activities, and data-driven development efforts to improve engine efficiency, durability, emissions, and overall system performance.
The ideal candidate has a strong foundation in thermodynamics, combustion, heat transfer, and fluid mechanics and enjoys turning test data into actionable engineering insights. You are analytical, detail-oriented, and eager to apply classroom knowledge to real-world engine development challenges in a fast-paced R&D environment.
You are currently pursuing a degree in Mechanical Engineering, Aerospace Engineering, Automotive Engineering, or a related field and have a passion for internal combustion engines, propulsion systems, and experimental testing.
Key Responsibilities:

• Assist in planning, executing, and monitoring engine performance tests in laboratory and test cell environments
• Analyze engine test data to evaluate performance metrics such as power output, fuel consumption, thermal efficiency, combustion characteristics, and emissions
• Support calibration and optimization activities for engine control systems and operating parameters
• Develop data visualization tools, reports, and presentations to communicate test results and engineering recommendations
• Collaborate with design, controls, simulation, and test engineers to investigate performance issues and support product development efforts
• Assist with instrumentation setup, sensor validation, data acquisition, and troubleshooting activities
• Document test procedures, results, and technical findings in engineering reports

Preferred Skills and Experience:

• Coursework or project experience in thermodynamics, internal combustion engines, combustion, fluid mechanics, and heat transfer
• Familiarity with engine testing, dynamometer operation, data acquisition systems, or laboratory testing environments
• Experience using MATLAB, Python, Excel, LabVIEW, or similar data analysis tools
• Understanding of engine performance metrics, combustion processes, and emissions fundamentals
• Familiarity with controls, calibration, or model-based development tools such as Simulink is a plus
• Experience with statistical analysis and large data set processing
• Strong analytical, troubleshooting, and problem-solving skills
• Excellent written and verbal communication skills
• Participation in Formula SAE, Baja SAE, EcoCAR, Engine Design Competitions, research projects, or other hands-on engineering activities is highly desirable

Our Culture:
At LiquidPiston, we challenge convention and solve hard problems. We move fast, think boldly, and iterate quickly. Our team thrives on collaboration, creativity, and resilience. We take calculated risks and believe that every setback is a steppingstone toward breakthrough innovation.
Equal Opportunity Employer:
LiquidPiston, Inc. is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment regardless of race, color, religion, gender, sexual orientation, gender identity, national origin, or veteran status, and will not be discriminated against on the basis of disability.
All offers of employment at LiquidPiston are contingent upon the successful completion of a pre-employment background check, drug screening and credit check.