4mo ago
New

Powertrain Engineer, Internal Combustion Engines

United StatesUnited States·Philadelphiafull-timeentry
OtherEngineer
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Quick Summary

Requirements Summary

B.S. or M.S. in Mechanical Engineering, Electromechanical Engineering, or related technical field. 5–7 years of experience designing and developing internal combustion engines, ideally in a startup,

Technical Tools
OtherEngineer
Role description:
  • Own the design and development of internal combustion engines end-to-end, from clean-sheet architecture through fabrication, dyno characterization, integration, and field testing.
  • Specify and develop core engine subsystems including fuel delivery, air handling, ignition or compression-ignition systems, cooling, lubrication, and exhaust, applying a strong first-principles engineering mindset to hit aggressive targets for power density, fuel efficiency, and reliability.
  • Design the engine to deliver clean shaft power into a downstream generator and power conversion stage, working closely with electrical teammates on coupling, vibration isolation, and operating-point selection.
  • Build, instrument, and run engine test cells and dyno setups to characterize performance, validate durability, and drive root-cause analysis on failures.
  • Collaborate closely with mechanical, electrical, software, and systems engineers to integrate engines into robust, demanding-environment power generation systems.
  • Get hands-on with build, assembly, and debug of prototype engines, driving rapid iteration and continuous improvement in performance, reliability, and manufacturability.

Desired qualifications:
  • B.S. or M.S. in Mechanical Engineering, Electromechanical Engineering, or related technical field.
  • 5–7 years of experience designing and developing internal combustion engines, ideally in a startup, motorsports, small UAV/UGV, or APU/genset environment where you owned problems end-to-end.
  • Deep working knowledge of two- or four-stroke engine design, including fuel delivery, air handling, cooling, lubrication, and exhaust subsystems.
  • Hands-on experience running engines on a dynamometer, including instrumentation, data acquisition, and performance characterization.
  • Proficiency with CAD tools (SolidWorks preferred) and experience producing clear engineering documentation, including drawings and tolerance specifications.
  • Comfort working across disciplines and reading schematics to collaborate effectively with EE and firmware teammates on ECU and engine controls integration.
  • Strong first-principles engineering mindset and a bias toward building, testing, and iterating over endless analysis.
  • U.S. work authorization and ability to obtain a security clearance.

Location & Eligibility

Where is the job
Philadelphia, United States
On-site at the office
Who can apply
US

Listing Details

Posted
May 13, 2026
First seen
September 26, 2026
Last seen
September 28, 2026

Posting Health

Days active
1
Repost count
0
Trust Level
19%
Scored at
September 28, 2026

Signal breakdown

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Powertrain Engineer, Internal Combustion Engines