Principal Engineer - Power Electronics Design

Trystar is at the forefront of advancing power solutions, charged and driven by a committed, dynamic team, tackling complex challenges, and creating innovative solutions.
Safety and integrity aren't just buzzwords.
They are the north star guiding us as we aspire to wow our customers every day.
We've created power solutions that are not only durable and unique but are also the result of serious teamwork from every corner of our organization.
Individually and collectively, every team member at Trystar plays for each other and strives to deliver unmatched value and 100% accuracy to our customers every single day.

As a big name and pioneer in power solutions, we're not just part of the power conversation - we're shaping its future, and we're doing so across diverse industry sectors including healthcare, data centers, entertainment, education, government, and commercial construction - just to name a few! We're committed to growing and evolving our product lineup to stay on top of the game and that includes leaning into sustainable, resilient, and renewable energy solutions.

Our cutting-edge headquarters in Faribault, MN, is partially solar- and wind-powered by our own microgrid! You'll find that we're also pushing boundaries across the country at our additional facilities in Troy, MI; Houston, TX; Merrimack, NH; Burnsville, MN; Murfreesboro, TN; Waukesha, WI; and in Montreal, Canada.
Together, we are Trystar, where we power the future and nurture innovation for a brighter tomorrow.

Trystar's team members are our most important asset, we are in search of a Principal Engineer - Power Electronics Design to join our innovative engineering team at our Merrimack, NH, site.
As a key contributor, you will leverage your extensive experience in complex power stage topology design to drive the development of cutting-edge power conversion systems.
Your expertise across multiple disciplines will be critical in collaborating on new system design architectures and leading projects from concept to validation through all phases of the design cycle.
Join Trystar and contribute to pioneering advancements in power and instrumentation systems.
Apply your expertise to lead innovative projects and make a significant impact in the fields of power electronics control, electrical power systems, and power conditioning design engineering.

We are looking for people who believe in our guiding principles and values of:

• Safety - We believe everyone should leave Trystar facilities in the same or better condition than when they arrived.
  
• Integrity - We're honest, transparent, and committed to doing what's right.
  
• Customer focus - We have relentless focus on our customers and their success.
  
• Right with speed - We use good judgement, make thoughtful decisions quickly, and execute them with purpose and intensity.
  
• Play for each other - We're a team.
  We show up for each other and we know that through teamwork we achieve greatness.
  
• Champion change - We know adaptation and improvement are requirements to survive and to thrive.
  
• Enjoy the journey - We create an environment where our team feels appreciated and has fun along the way.
  

• Define, develop, and create power, analog, and digital circuitry architectures for high power, high voltage, high frequency switching, multi-phase, bidirectional AC power inverters and interleaved DC-DC converters utilizing Si and SiC IGBT, MOSFET, and SCR devices.
  
• Design power stages at voltages up to 1500 VDC / 600 VAC, with power ranging from 10-800 kW.
  
• Design power circuits and all supporting circuity such as fan control and monitoring, active and passive pre-charge/bleed, input/output power filtering, DC links, snubbers, dampers, clamps, relay drives, etc.
  
• Collaborate with hardware designers, mentor junior hardware designers, and other engineers engaged in the design, validation, and commercialization of power electronics.
  
• Generate and manage comprehensive technical documentation.
  
• Lead design reviews and technical discussions, fostering a culture of technical excellence.
  
• Develop and manage detailed project scope and schedules.
  

• Bachelor's degree in Electrical / Electronics Engineering (BSEE) with 10+ years of relevant industrial experience in power conversion and controls or a Master of Science in Electrical / Electronics Engineering (MSEE) with 5+ years of relevant industrial experience.
  
• Extensive experience in analog design engineering, focusing on power and instrumentation systems, as well as communications, fault monitoring, and protection schemes.
  
• Experience defining software and programable logic requirements for modulation and control of power stages and systems.
  
• Experience defining magnetic components, filter topologies, and EMC/EMI compliance approaches.
  
• Ability to specify test strategies and methods for verification, production, and regulatory compliance prior to product design.
  
• Experience collaborating with PCB designers and mechanical engineers (MEs) on PCB floorplan, mechanical packaging, thermal and electrical interfaces, and cooling approaches.
  
• Highly motivated, fast learner with exceptional attention to detail that thrives in a team environment.
  
• Document control, schematic capture, simulation, and modeling experience in a variety of tools such as LTspice, MATLAB/Simulink, Python, SolidWorks, PLM, etc.
  

• Magnetic designs for transformers, inductors, and common-mode chokes using ferrite, powdered metal, and amorphous tape materials with round, helical, foil, and litz windings.
  
• Digital circuits including DSPs, FPGA/PLDs, real time clocks, and communications (RS-485, CAN, Ethernet, SPI, I2C).
  
• NFPA 70E certification.
  
• Position may require up to 20% travel within North America.