Sr Reliability Engineer, Power Electronics & Electrical

Overview

Lead reliability engineering for power electronics and electrical cabling, from design to field.

Key Responsibilities

• failure analysis
• reliability design
• simulation modeling
• cross‑functional
• halt testing
• accelerated testing

Tasks

-Failure Analysis & Corrective Action: Investigate failures in design, validation, and field environments using advanced techniques such as SEM/EDS, X-ray, FTIR, and dye/pry methods. Coordinate internal and third-party failure analysis efforts and drive implementation of corrective and preventive actions. Design tests needed to verify failure mode and see through implementation of corrective actions and solutions. -Design for Reliability: Implement advanced DfR methodologies to proactively mitigate potential failure modes in high-voltage and power electronic systems. Perform component derating analysis, thermal/mechanical stress evaluations, and ensure compliance with standards (JEDEC, IEC, UL). Conduct DFMECA and Fault Tree Analysis, and own the reliability requirements definition and tracking. -Simulation & Modeling: Use LT Spice, OrCAD, and simulation tools to analyze and validate circuit behavior under stress. Perform reliability prediction and modeling using tools such as ANSYS, RAM Commander, ReliaSoft, and Windchill. -Cross-Functional Collaboration: Partner with design, test, and supplier engineering teams to ensure reliability targets are met throughout development cycles. Serve as the technical leader in reliability risk reviews and design validation gates. Responsible for communicating progress through presentations and technical reports to management. -Testing & Validation: Lead and define HALT/HASS testing protocols to expose early-life and latent design weaknesses. Develop and execute accelerated life testing (ALT) strategies across electrical, thermal, and mechanical domains, aligned with real-world usage profiles. Perform hands-on power converter validation (step load testing, power cycling, vibration testing, etc.) using lab instrumentation (oscilloscopes, spectrum analyzers, etc.).

Requirements

• pcba
• high voltage
• dc-dc
• iec
• ansys sherlock
• power electronics

What You Bring

-Experience with PCBA-level derating analysis and reliability assessments for data center or energy infrastructure applications. -Proven experience (7+ years) working with high voltage systems, high power electronics, and DC-DC converters, preferably in renewable power electronics, electric vehicle, or industrial power systems. -Knowledge of industry standards and certifications for power electronics, including IEC, UL, JEDEC and IEEE. -Hands-on lab skills with electrical, thermal, and vibration test environments. Experience with Insulation Resistance, Dielectric Withstand and environmental testing for PV cabling, connectors and polymer overmolds. -Familiarity with reliability planning for product field deployment and field return data analysis. -Knowledge of Physics of Failure principles, Weibull life data analysis, and stress-based modeling techniques. -Experience with reliability standards and analysis methods: DFMEA, MTBF, FIT, ALT, HALT, and HASS. Background in Ansys Sherlock, Physics of failure principles and failure rate predictions based on stress factors like vibration, shock, temperature cycling and thermal gradients. -Bachelor’s or Master's degree in Electrical Engineering, Power Electronics, or a related field. Master's degree preferred

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About Nextracker Inc.

-Founded to revolutionize solar energy with cutting-edge tracker technology. -Provides advanced solar tracking solutions that maximize energy production and efficiency. -Works with utility-scale solar projects to deliver reliable and cost-effective power solutions. -Delivers engineering excellence with focus on durability, performance, and ease of installation. -Has grown to become a global leader in solar tracker systems, with projects across multiple continents. -Known for developing and deploying smart, automated solar trackers that adjust to the sun’s position. -Focuses on enhancing the sustainability and scalability of solar energy worldwide. -Pioneers in creating solutions that integrate seamlessly with existing grid infrastructure. -Constantly pushing the boundaries of solar technology to support a cleaner, greener future.

Sector Specialisms