Principal Engineer I

Nidec Motor Corporation•St. Louis, MO

20h

About The Position

We begin with dreams. Dreams drive our motivation. Dreams are our future. The world's dreams, people's dreams, our dreams. Our passion creates ideas that make dreams come alive. Technology and products that were only dreams become reality. All for dreams. Dreams challenge and the Nidec-Group will continue to meet the challenge. For the world's and people's tomorrows; the world's first, the world's best technologies and products; we will continue our part in creating a better society. Job Summary Serve as the technical authority for power electronics hardware within C&I motor control and drive products Lead the architecture, detailed design, simulation, validation, and industrialization of power electronics hardware—from concept through product launch—ensuring performance, EMC, reliability, manufacturability, safety, and regulatory compliance. Operate with a high degree of autonomy, providing technical leadership, design direction, and mentoring other engineers while partnering closely with firmware, mechanical, manufacturing, quality, and supplier teams.

Requirements

10+ years of experience in electronics engineering.
10+ years of experience in electric motors, industrial equipment, and drives design
Proven hands-on experience with power inverter topologies from 1 kW through 10 kW.
Practical design ownership of active PFC hardware, implementing and supporting more than one topology across production programs
Repeated success in designing hardware that meets EMC emission and immunity requirements, including layout execution and pre-compliance validation
Extensive experience designing high-frequency power electronics, including switching devices, magnetics, and gate drive circuits
Experience implementing and validating hardware safety functions for motor control applications.
Hands-on involvement in PCB layout collaboration and design reviews for high-power and high-speed boards released to manufacturing
Applied experience using circuit analysis and simulation tools to predict losses, transient behavior, and design margins
5+ years of experience applying current and voltage sensing technologies in power electronics and control systems
Practical exposure to deploying advanced MEMS-based sensors in industrial or embedded electronics products.
Direct involvement with PCBA manufacturing, including PCB fabrication, SMT/THT assembly constraints, and test strategy definition
Participation in product industrialization activities, including prototype builds, pilot runs, and production ramp-up support
Clear written communication skills for technical documentation, design rationale, and engineering review.
Ability to communicate complex technical concepts clearly and concisely across diverse audiences, including nontechnical stakeholders
Confidence to challenge assumptions and decisions constructively using data, experience, and engineering judgment
Strong time management skills to balance deep technical work with cross-functional engagement
Bachelor’s degree in Electrical Engineering, Electronics Engineering, or related field.

Nice To Haves

Master’s degree preferred

Responsibilities

Act as technical lead and design authority for power electronics hardware across multiple products and platforms
Design switching power converters with a strong focus on efficiency, thermal management, EMI, reliability, and safety
Develop schematics and guide PCB layout for high-frequency and high-power circuits, ensuring optimal current loops, grounding, isolation, and thermal paths.
Drive adoption of EMC-compliant hardware and layout practices from concept phase onward.
Specify and validate current, voltage, and advanced sensors (including MEMS-based solutions) for control, protection, and diagnostics.
Perform detailed electrical simulations, including circuit-level simulations (functional, signal transient, power losses).
Collaborate with firmware and controls engineers to ensure optimal hardware–software interaction and system-level performance.
Support the definition and implementation of hardware safety functions aligned with applicable standards.
Design electronics with a strong focus on long-term reliability under electrical, thermal, mechanical, and environmental stresses
Lead DFMEA and contribute to system-level risk assessments
Analyze test and field failure data, contributing to root-cause analysis and corrective design actions
Ensure robustness against electrical overstress, thermal stress, EMC disturbances, and misuse scenarios
Apply Design for Manufacturing (DFM) and Design for Test (DFT) principles throughout the development process.
Support PCBA fabrication, assembly, and end-of-line testing strategy definition
Work closely with Manufacturing Engineering and Quality to resolve electronics assembly, yield, and test issues.
Support ramp-up and production readiness activities
Provide technical support during pilot builds, validation builds, and mass production launches
Support preparation of technical documentation and test evidence required for certification and compliance activities
Participate in pre-compliance testing and troubleshooting to ensure successful formal certification
Lead or support technical engagement with key suppliers for Power semiconductors
Guide procurement on component selection, balancing performance, reliability & cost
Support value engineering and cost optimization initiatives without compromising robustness or compliance.