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Sr. Battery Design Engineer - ElectroMechanical

Company: Supernal
Location: San Bruno
Posted on: March 11, 2023

Job Description:

Supernal is at the forefront of creating emerging mobility solutions that will foster the development of human-centered cities. We are designing a completely new electric vertical take-off and landing (eVTOL) aircraft tailored to the mobility needs of future cities. This allows passengers a seamless intermodal journey that safely transports them to their final destination. We fuse research in autonomy, robotics, aviation and services to define a new category of mobility for the world's communities. We believe in creative thinking and collaboration to help build a better mobility experience for everyone, improving people's ability to move - whether for work or play.

What we do:

The Battery Design Engineer group focuses on designing and prototyping high voltage and high-power battery system in electrified aircrafts. Sr. Battery Design Engineer - Electromechanical focuses on the Electrical & Mechanical portions of the architecture for the Energy Storage System (ESS). The role is involved on every step of ESS development process from conceptual designs up thru SOP, selection of components, prototype builds to releasing design for manufacturing. This role collaborates with other battery engineers and battery system technologists to advance and to integrate key technologies to the design.

What you can do:

  • Design electrical and mechanical components for HV/HP battery system from concept to production, such as bus bars, current correctors, fusing elements, cold plates, cell holders and module structures
  • Perform analytical and physical assessments on battery system to ensure the design's robustness and reliability, as well as to match with requirements
  • Select fuses for different fault discrimination / latency requirements of sub systems such as contactors, wires/busbars considering fault impedances and I2t values of components
  • Develop new and innovative electrical wiring / busbar design to package ESS system at module level and pack level and optimize space utilization
  • Build and contribute to component specifications, verification plans, and other technical documents
  • Develop and release module level and system level requirement specifications, mechanical and electrical drawings for the busbar/wiring designs
  • Develop Validation requirements for Electrical systems and Mechanical systems in ESS and approving validation results confirming agreed upon performance
  • May require up to 10% of domestic and international travels
  • Other duties as assigned What you can contribute:
    • Bachelor's degree in electrical engineering, mechanical engineering, or relevant engineering field
    • A minimum of five (5) years of experience in HV electrical system design (wiring, bus bar, components) for High voltage batteries or similar systems in automotive or aerospace industries (an equivalent combination of education and experience may be considered)
    • Proven experience in HV DC electrical part selection, wiring design & release, busbar design & release is the desired skill for this position
    • Expert level experience in Mechanical CAD tools (CATIA, SOLIDWORK or similar) used for design of wiring system with electrical components required
    • Ability to design HW to meet Environmental, EMI/EMC, lightening, thermal, shock & vibration
    • Excellent skills required in technical communication, and reliance on data for issue resolution and decision making
    • Working level understanding Li Ion cell characteristics required
    • Must have hand-on experience in prototype build high voltage battery packs
    • Excellent verbal and written communication skills Any offer of employment is conditioned upon the successful completion of a background check. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, citizenship, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. Individuals with disabilities may request to be provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation at:

      This position may include access to certain technology and/or software source code, that will be subject to U.S. export control laws. If an export license or other export control authorization is required in connection with your employment, your employment is contingent upon Supernal's receipt of such license or authorization and approvals and your continued compliance with all conditions and limitations contained in such license or authorization.

      The pay range for this position is:
      $166,400 $232,960 USD

      Click HERE or visit: to view our benefits!

Keywords: Supernal, San Bruno , Sr. Battery Design Engineer - ElectroMechanical, Engineering , San Bruno, California

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