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Battery Mechanical Design Engineer

Hyliion Overview

Hyliion ( is bringing hybrid electric technology to tractor-trailers. We save up to 30% in fuel consumption with an add-on product that can be installed on both new and used tractor-trailers. We bring the same technology that is in a Tesla or a Prius to the trucking industry in an easy to install solution.

Position Overview
Hyliion will be developing our own battery packs and we are creating a battery team!  The Battery Mechanical Design Engineer will be a part of leading the design and development of state-of-the-art high production volume electric vehicle battery packs. You will be responsible for resolving technical, application and manufacturing challenges in the battery systems including mechanical, thermal, and system integration issues. You will work with other engineering teams on the development of powertrain thermal system, CAE and structural design, BMS and powertrain control, charging system and high voltage power distribution system. You will lead product requirement analysis, technical solution analysis, production feasibility studies, system level architecture, design, and implementation.



  • Develop advanced state/parameter estimation algorithm for nonlinear system and charging strategies for Li-ion batteries.
  • Simulate the developed algorithm and model in MATLAB and Simulink environment.
  • Manage battery related product development cycles from design to manufacturing. 
  • Lead battery system structural, CAD/CAE and safety related work, including DFMEA.
  • Lead battery system thermal design, HV bus bars and mechanical interface to vehicle. 
  • Collaborate with various internal and external teams to specify and review product requirements.
  • Lead test plan development, issue resolution, and lab and in-vehicle testing of battery systems.
  • Develop and integrate component level modeling into system level to achieve high fidelity simulation.


Requirements: Skills/Experience

  • MS degree in ME, EE, CS, Math, Physics, or Chemistry
  • Experience in advanced control theory including linear/nonlinear system modeling and model identification, and state observer design and tuning
  • Knowledge of electrochemistry, especially Li-ion batteries. Knowledge of load profiles on battery performance, cycle life and reliability.
  • 5+ years of R&D experience in automotive industry.
  • 5+ years of battery system development experience in automotive industry.
  • Experience in electric or hybrid vehicle development.
  • Expertise in CAD / CAE packages including FEA, CFD, Heat Transfer modeling
  • Experience in battery pack interconnection design, thermal management, and safety.
  • Experience in CAN bus communications and associated tools such as CANape.
  • Enjoys working in fast pace & diverse work environment, and values candid communication.
  • Ability to work in a dynamic mature start-up environment where initiative and ownership is a must 


  • Help make the world a cleaner place by revolutionizing the trucking industry
  • Work in a small team that operates at an incredibly fast pace
  • Unlimited vacation
  • Competitive salary, equity and benefits including medical, dental & vision
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