Power Electronics Reliability Engineer

Pentangle Tech Services | P5 Group; Franksville (WI); On-site; USD 85,000 - 105,000; Full time

Job summary

Unico in Franksville, Wisconsin is seeking a Power Electronics Reliability Engineer with 5+ years of hands-on DFMEA and MTBF experience to drive reliability for power electronics products. This role emphasizes reliability over traditional testing, with a focus on identifying failure modes and mitigating risks before release.

The ideal candidate will review schematics and datasheets, understand SiC MOSFETs, IGBTs, capacitors, resistors, and gate drive circuits, and develop robust reliability

Qualifications

• Experience leading or performing DFMEA on power electronics products.
• Experience developing MTBF/MTTF reliability calculations and models.
• Ability to review power electronics designs and identify potential failure modes and downstream impacts.
• Strong understanding of power electronic components including: SiC MOSFETs, IGBTs, capacitors, resistors, gate drive circuits.
• Ability to analyze what happens when components fail (shorts, opens, over-current, over-voltage, thermal events, noise susceptibility, etc.).
• Comfortable reviewing schematics, datasheets, and stress/derating conditions to identify reliability risks before product release.

Responsibilities

• Perform DFMEA and MTBF analysis on power electronics products.
• Identify reliability risks and drive design improvements prior to release.

Skills

DFMEA

MTBF/MTTF

Power electronics

Design review

Schematic review

Component stress analysis

Reliability modeling

Job description

Job Title:

Power Electronics Reliability Engineer

Location:

Franksville WI

Duration:

Long Term

Client:

Unico

Job Description

• The Client is looking for a Power Electronics Reliability Engineer with hands-on experience performing DFMEA and MTBF analysis on power electronics products. This is much more of a reliability-focused role than a traditional validation or test engineering position. 5+ years of experience. Needs demonstrated power electronics experience not HIL or software test.

Key Requirements

• Experience leading or performing DFMEA (Design Failure Mode & Effects Analysis) on power electronics products.
• Experience developing MTBF/MTTF reliability calculations and models.
• Ability to review power electronics designs and identify potential failure modes and downstream impacts.
• Strong understanding of power electronic components including:
• Silicon carbide (SiC) MOSFETs
• IGBTs
• Capacitors
• Resistors
• Gate drive circuits
• Ability to analyze what happens when components fail (shorts, opens, over-current, over-voltage, thermal events, noise susceptibility, etc.).
• Comfortable reviewing schematics, component datasheets, and stress/derating conditions to identify reliability risks before product release.

Examples Of The Type Of Experience Needed

• Determining what happens if a SiC MOSFET or IGBT shorts and understanding the impact on downstream components.
• Identifying scenarios where excessive current through a resistor could create a thermal or fire risk.
• Evaluating capacitor voltage stress, electrical noise susceptibility, and other reliability concerns.
• Using DFMEA findings to drive design improvements and validation testing.

Additional Experience Desired

• Power conversion products such as drives, inverters, DC/DC converters, motor controls, or similar power electronics systems.
• Reliability testing, validation, root cause analysis, and field failure investigations.
• Experience with standards-based reliability methods (MIL-HDBK-217, Telcordia, Physics-of-Failure, etc.).
• Target Candidate: Someone who has spent years performing DFMEA and MTBF analysis on power electronics hardware and can quickly identify failure mechanisms, component stress issues, and reliability risks within a design.