Mechanical EngineerThis role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026.
Position Overview:We are seeking a hands-on, innovative Mechanical Engineer to join our dynamic team. In this role, you will contribute to all phases of engine development-from concept and design through testing and iteration-as we advance LiquidPiston's rotary diesel engines toward production. This is a high-impact, cross-functional role requiring strong mechanical design skills, analytical thinking, and a passion for solving complex technical challenges.
Responsibilities:- Design, analyze, and develop engine components, subsystems, and custom test rigs
- Use SolidWorks for 3D CAD modeling and drafting of engine parts and assemblies
- Conduct engineering analysis using a combination of hand calculations, Matlab, custom code, and commercial simulation tools (e.g., GT-Suite)
- Support prototype fabrication by working with in-house machinists and external vendors
- Participate in the operation and testing of rotary engines on dynamometers and data acquisition systems
- Assemble and disassemble prototype engines; perform part inspections and document build details
- Troubleshoot and debug mechanical systems through hands-on work and root-cause analysis
- Collaborate with cross-functional teams, technicians, and contractors to execute test and design projects
- Present design proposals and test data clearly through reports, presentations, and team meetings
- Help enforce engineering best practices and company policies (file organization, documentation, project management tools)
- Stay current with advancements in rotary engines, diesel combustion, thermodynamics, and related technologies
Qualifications:- Bachelor's degree in Mechanical Engineering or a closely related field
- Proficiency in CAD design (SolidWorks preferred)
- Familiarity with Matlab and mechanical system modeling/analysis
- Solid understanding of mechanical fundamentals: thermodynamics, kinematics, stress analysis
- Hands-on experience with mechanical systems-building, testing, or prototyping
- Strong problem-solving skills, self-direction, and attention to detail
- Excellent communication skills and ability to work in a collaborative team environment
Preferred Qualifications:- Experience with internal combustion engines, especially rotary or diesel platforms
- Familiarity with GT-Suite or other engine simulation tools
- Exposure to DAQ systems and test instrumentation
- Experience managing prototype builds or working closely with machinists
Benefits:- Flexible PTO to encourage work-life balance and personal well-being
- Comprehensive healthcare coverage: medical, dental, and vision plans
- Equity participation: RSUs for all permanent employees
- 401(k) with match: 100% up to 3%, plus 50% match for 3-5% range
- Growth opportunities: Mentorship, training, and leadership development
