onsemi

Semiconductors for intelligent power and sensing

Power Applications Engineer

Solution EngineeringConfirmed live in the last 24 hours

Full-timeScottsdale, AZ, USANo salary listedHybrid

About the Job

Requirements

A Bachelor’s or Master’s degree in Electrical Engineering, with a focus on power electronics or a related field.
Experience with high-power or high-voltage systems, including 48/54V or 400/800V systems preferred.
Understanding of eFuse, Hot-Swap, power-switching devices, or power-tree architecture.
Familiarity with system modeling tools such as SPICE, SIMPLIS, or MATLAB.
Strong communication and customer-facing problem-solving skills.

Responsibilities

Drive the development, validation, and adoption of eFuse, Hot-Swap, and power-switch solutions across artificial intelligence, cloud, networking, and advanced-computing platforms.
Develop and refine performance-verification infrastructure for robust, high-quality power-tree designs.
Work with customers to optimize company product content within their systems and communicate the breadth and value of the power-technology portfolio.
Architect, model, and deploy 48V/54V and 400V/800V power-delivery systems for artificial intelligence servers and data-center infrastructure.
Perform power-tree design, power-distribution optimization, and integrated protection-strategy development for high-density GPU/artificial intelligence compute platforms and large-scale power-delivery clusters.
Serve as a technical interface between system requirements and product offerings while working with data-center architects, power-electronics development teams, and customers.
Develop reference designs, evaluation platforms, and validation infrastructure for eFuse, Hot-Swap, and power-switch solutions.
Perform system modeling, power-tree analysis, and protection-strategy optimization.
Support customers with design reviews, system bring-up, debugging, and performance benchmarking.
Collaborate with internal design, systems, and marketing teams to shape next-generation product requirements.
Generate technical collateral, including application notes, whitepapers, reference schematics, and simulation models.

Desired Qualifications

Experience with 48/54V or 400/800V systems is preferred.

The Power Applications Engineer will drive the development, validation, and adoption of onsemi’s eFuse, Hot‑Swap, and power‑switch solutions across AI, Cloud, Networking, and advanced‑computing platforms. In this role, you will develop and refine performance‑verification infrastructure to ensure robust, high‑quality power‑tree designs. You will also work with customers to optimize onsemi content within their systems and highlight the breadth and value of our power‑technology portfolio.

This role focuses on the architecture, modeling, and deployment of 48V/54V and 400V/800V power‑delivery systems used in AI servers and data‑center infrastructure. Emphasis areas include power‑tree design, power‑distribution optimization, and integrated protection strategies (eFuse, Hot‑Swap, power‑switch control). Success requires a hybrid skill set spanning power electronics, protection methodologies, and system‑level design for high‑density GPU/AI compute platforms and large‑scale power‑delivery clusters.

You will work closely with data‑center architects, power‑electronics development teams, and customers deploying next‑generation AI compute infrastructure, serving as a technical interface between system requirements and onsemi’s product offerings.

BS/MS in Electrical Engineering (focus on power electronics or related field).
Experience with high‑power or high‑voltage systems (48/54V or 400/800V preferred).
Understanding of eFuse/Hot‑Swap, power‑switching devices, or power‑tree architecture.
Familiarity with system modeling tools (SPICE, SIMPLIS, MATLAB, etc.).
Strong communication and customer‑facing problem‑solving skills.

Same Posting Description for Internal and External Candidates

Develop reference designs, evaluation platforms, and validation infrastructure for eFuse/Hot‑Swap and power‑switch solutions.
Perform system modeling, power‑tree analysis, and protection‑strategy optimization.
Support customers with design reviews, system bring‑up, debug, and performance benchmarking.
Collaborate with internal design, systems, and marketing teams to shape next‑generation product requirements.
Generate technical collateral: application notes, whitepapers, reference schematics, simulation models.

About the Company

onsemi

Semiconductors for intelligent power and sensing

onsemi designs and manufactures semiconductors with a focus on intelligent power and sensing technologies for automotive and industrial markets. Its products include power management ICs and sensors that regulate energy, monitor conditions, and provide control signals for EVs, ADAS, factory automation, robotics, and energy infrastructure. The company differentiates itself by its specialized emphasis on intelligent power and sensing across both sectors and through its direct OEM relationships and global distributor network. Its goal is to improve energy efficiency and enable smarter, more capable systems for electrification, autonomy, and sustainable energy solutions.

Company size: 10,001+
Company stage: IPO
Headquarters: Scottsdale, AZ
Founded: 1999

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