Power Electronics Engineer

4 weeks ago

Wilsonville, Oregon, United States ESS, Inc. Full time
About ESS, Inc.

Catalyzing a cleaner future, ESS, Inc. is a leading provider of safe, sustainable, and long-duration energy storage solutions. Our mission is to accelerate global decarbonization by delivering environmentally safe solutions capable of providing up to 12 hours of flexible energy capacity for commercial and utility-scale energy storage applications.

Job Summary

We are seeking an experienced and dynamic Power Electronics Engineer to join our team. The successful candidate will design, develop, and test ESS systems while working with multifunctional teams on critical projects. The ideal candidate will have a passion for sustainability and the environment, thrive in a fast-paced entrepreneurial setting, and have an interest in disruptive, cutting-edge technology.

Key Responsibilities
  • Design, model, specify, and test low to medium voltage electrical power systems and equipment.
  • Develop improvements and new product integration through research, design, technical evaluation, and documentation.
  • Develop test plans, build test fixtures, and execute tests to assess the functionality & performance of inverters and converters implemented in flow batteries used for grid-forming, grid-following applications, and DC microgrids.
  • Develop functional requirements documents, build hardware prototypes, and perform analysis and testing to confirm equipment compliance to applicable specifications.
  • Interface with suppliers, manufacturing, sales, and marketing in the product development process.
  • Utilize Autocad Electrical to prepare schematics and single line diagrams of electrical systems.
  • Conduct research to test or analyze the design, operation, and performance of equipment.
  • Prepare performance requirements for equipment and systems.
  • Ensure compliance to UL, CSA, IEC, IEEE, EU and EN requirements.
  • Ensure engineering design and standards documentation is complete, accurate and sufficient in support of manufacturing and quality assurance activities, and compliant with customer specifications and regulations.
  • Actively communicate specific work requirements or needs to internal functions, such as purchasing and manufacturing to ensure expectations are understood as defined by engineering specifications.
Requirements
  • BS Engineering in Electrical Engineering.
  • 5 years' experience in a Power Electronics Engineering role.
  • Fundamental understanding of various control strategies and conversion topologies.
  • Experience with PCB design with working voltages up to 1kV using industry standard tools (Altium Designer, Eagle, OrCAD, etc).
  • Experience in power electronic PCB layout and building hardware prototypes.
  • Proven proficiency in 2-D CAD systems (i.e., AutoCAD) for design, documentation, and fabrication.
  • Expert knowledge of AC (multi-phase) and DC power, power conversion techniques & principles, motor drive, and UPS battery management systems.
  • Experience designing and building test stands for power electronics.
  • Ability to work in a cross-functional and geographically dispersed team environment and across departments: R&D, Manufacturing, Quality, Supply Chain.
  • Experience proving durability and reliability of products through design and implementation of dedicated testing.
  • Experience designing products at high volume. Proven DFM and DFR track record.
  • Strong communication and presentation skills, affable, with demonstrated maturity and professionalism.
  • Self-starter who can follow tasks through to completion with little guidance.
  • Ability to multi-task several projects and prioritize workload to meet business specific deadlines.
  • Ability to lift 50 lbs. unassisted.
  • Ability to follow job required Standards and Safety Protocols, per pre-defined processes.
  • Must be able to wear Personal Protection Equipment according to OSHA rules and regulations.
Preferred Qualifications
  • Master's degree in Electrical Engineering.
  • Experience in new-product technologies introduction and scale to manufacturing.
  • Experience commercializing new products in a production environment.
  • Experience in battery, fuel cell technologies or power generation systems.
  • Proficient in DC/DC bidirectional converter topologies and DC/AC bidirectional active front end PFC grid tied inverters.
  • Experience in GaN and/or SiC technology.
  • Understanding of AC and DC Microgrid ESS Battery Storage principles and applications.
  • Understanding of UL 1741SA and IEEE 1547 Smart Inverter GRID Codes and utility scale applications.
  • Experience with the protection of power systems per grounding system type (TT. IT & TN).
  • Some experience working with embedded system engineers or experience with embedded programming.
  • Basic understanding of CAN Communication Protocol (CAN 2.0A/2,0B).
  • Basic understanding of MODBUS Communication Protocol (RS485, TCP/IP).
Benefits

In addition to the value of working with and helping grow a global reaching clean technology, ESS offers a Company assisted Health insurance, Approved PPE Reimbursement, Medical & Dental; Flex spending account; 8 paid holidays; 401K, and a competitive PTO accrual.

As an equal opportunity employer, we are open to considering every qualified candidate who is eligible and legally authorized to work in the United States on a full or part-time basis, without a need for sponsorship.

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