Senior Mechanical Simulation Engineer: Seal & Tribology Lead

LiquidPiston, Inc.; Suffield (CT); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible PTO

Health & Wellness

Equity (RSUs)

401(k) Match

Career Growth

Job summary

LiquidPiston, Inc. is seeking a Senior Mechanical Simulation Engineer for a fully onsite role in Bloomfield, CT (relocating to Suffield, CT later in 2026).

You will lead the design, development, and validation of rotary engine sealing systems and related components, applying tribology, materials science, and dynamic simulation to optimize performance under demanding conditions. The ideal candidate has 5+ years in ICE component design, strong analytical skills, and a track record in R&D projects.

Qualifications

• Requires Mechanical Engineering degree with 5+ years in ICE power cylinder components
• Experience with design, development and validation of engine components
• Proficiency in advanced simulation tools (e.g., Ansys) and scripting languages

Responsibilities

• Lead rotary engine sealing system design and refinement (Apex Seals and Face Seals)
• Contribute to journal bearing design including loads, clearances, oil flow
• Apply tribology to minimize friction and wear on seals and housing surfaces
• Develop 1D/3D dynamic models to analyze seal motion and leakage
• Specify materials for high-temperature, high-pressure conditions and work with manufacturing
• Perform FEA to assess thermal distortion and mechanical stress on seals and structures
• Design, execute, and analyze engine test plans focusing on durability and friction
• Troubleshoot sealing-related engine performance issues identified during testing

Skills

Tribology knowledge

High-temperature materials

Independent work

Dynamic simulation

Problem solving

Education

Bachelor's degree in Mechanical Engineering

Master's degree preferred

Tools

Ansys

MATLAB

Python

C++

Job description

LiquidPiston, Inc. is seeking a Senior Mechanical Simulation Engineer for a fully onsite role in Bloomfield, CT (relocating to Suffield, CT later in 2026).

You will lead the design, development, and validation of rotary engine sealing systems and related components, applying tribology, materials science, and dynamic simulation to optimize performance under demanding conditions. The ideal candidate has 5+ years in ICE component design, strong analytical skills, and a track record in R&D projects.