Senior Power Electronics Architect

  • San Francisco, CA
  • Sep 16, 2020

Job Description

The Role

We are seeking an experienced and driven power electronics architect to lead development of a market leading hybrid inverter through all stages of development. As the power electronics architect, you will rely on your past experience bringing converters to market to lead Span’s develop a state of the art power electronics package that pairs with the Span Panel. Further, you will be tasked with finding a team to support the development of this exciting product.

In this role, you will:

  • Define system architecture and create engineering requirements for power electronics converter for use in residential solar and battery storage applications.

  • Own full product lifecycle: specification, design, prototype, certification, reliability, validation, and manufacturing.

  • Collaborate with mechanical, electronics design, and firmware engineering teams to successfully to design, validate and manufacture power converters.

  • Architect and model of power converters.

  • Collaborate with internal and external teams.

  • Build prototype components and assemblies.

  • Develop and perform tests related to compliance, environmental, and reliability.

  • Work with contract manufacturers to have parts made to specification, to improve quality, and to improve yield.

  • Work with Mechanical team to design a thermal management strategy

  • Build a resource plan and timeline for power electronics development.


About You

Required Qualifications

We are seeking a seasoned electrical engineer who has:

  • MS in Electrical Engineering with a focus on Power Electronics

  • 5+ years experience developing bi-directional power converter (AC/DC, DC/DC & DC/AC) design.

  • Experience with high voltage power semiconductor selection (Si/SiC/GaN MOSFETs, diodes), gate drive and protection circuit design.

  • Hands-on approach whether it be building a prototype or performing testing.

  • Experience leading projects and architecture with diverse team under tight timelines.

  • Solid understanding of the theory and application of magnetics (inductors, transformers) and capacitors (Electrolytic, film and Ceramic) used for power conversion.

  • Familiar with schematic capture and power converter circuit modeling/simulation tools.

  • Experience in supervision of PCB layout for minimal stray inductance and capacitance, placement strategies for better manufacturability, power/signal plane definition and EMC optimization.

  • Knowledge of basic control theory.

  • Experience with embedded programming including working with / guiding firmware developers.

  • Experience working closely with contract manufacturers and leading design for manufacturing.

  • Proficiency with basic EE tools (Oscilloscopes, Signal Generators etc.).

  • Experience in ground-up architecture and design ownership for designs with power levels in the 5-30kW range and voltages in the 200-600V range

Bonus Qualifications

We would love to hire someone who has:

  • PhD in Electrical Engineering with a focus on Power Electronics.

  • Knowledge in environmental, reliability, and safety requirements for residential applications.

  • Experience specifying embedded controllers for power electronics – i.e. choosing between FPGA, microcontroller, hardware accelerated gate drive, etc.

  • Knowledge of national and international safety and EMC requirements relevant to the design of power converters such as UL, FCC, National Electric Code(NEC), IEC, and ISO.

  • Experience developing a solar inverter, battery inverter, or electric vehicle charging equipment.

  • Demonstrated success working in a cross disciplinary, multi-cultural environment.

  • Experience developing of performance validation, environmental testing, and reliability testing.


Life at Span

Span is a startup based in the SOMA neighborhood of San Francisco. We are a small, diverse team of creative thinkers. We value open communication, teamwork, and a make-it-happen attitude - no job is too big or too small. We strive to make change by imagining what the future could be and building a product to complete that vision. We are looking to grow our team with talented people who are on the same mission to shape the future of energy.

Impacting the future as a small, agile team means putting in a lot of hard work and elbow grease so we work to make sure you are happy, healthy, and you look forward to coming to work. Working at Span, you can expect:

  • Competitive compensation

  • Medical, dental, vision, life and disability insurance

  • Sunny, airy office located close to BART and Caltrain

  • Regular team lunches, brown bag learning opportunities and events

  • Opportunity to influence our culture

Span embraces diversity and equal opportunity in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be.

Organization Type




Want us to tweet your job? Please write your organization's twitter username below (just the username, please do not add the '@')