Principal Test Development Engineer

onsemi; Seremban; On-site; MYR 350,000 - 520,000; Full time

Job summary

onsemi is seeking a Principal Test Development Engineer to lead global test development across wafer sort, die-level, and final tests for Si, SiC, IGBT, and GaN devices. You will architect robust, cost-effective test platforms and drive high-volume manufacturing readiness.

The role emphasizes strategic leadership, cross-functional collaboration, and advanced data analytics to optimize test performance and yield across multiple sites.

Qualifications

• Bachelor's degree in Electrical/Electronics/Physics or equivalent.
• Master's degree preferred.
• Minimum 10+ years semiconductor test engineering experience.
• Minimum 5+ years direct test development experience.
• Proven experience in power semiconductor products (Si, SiC, IGBT, GaN).
• Strong leadership in NPI and production test deployment.

Responsibilities

• Provide technical leadership and mentorship for a global test development team.
• Drive test architecture decisions from concept to high-volume manufacturing.
• Develop wafer sort, die-level, package final, and power module test solutions.
• Lead test development activities for new products (Power MOSFETs, IGBTs, SiC MOSFETs, GaN).
• Partner with Design and Product Engineering for DFT and manufacturability goals.
• Define multic-site test strategies for cost reduction and throughput improvement.
• Advance data analytics to drive data-based decisions.

Skills

Leadership

Cross-functional collaboration

Statistical analysis

Data analytics

Root cause analysis

Project management

Communication

Education

Bachelor's degree in Electrical Engineering, Electronics Engineering, Physics, or equivalent.

Master's degree preferred.

Tools

Teradyne ETS Series

Advantest Platforms

Cohu / Multitest

Accotest Platforms

Power BI

Minitab

JMP

SQL

Job description

Job Description

Principal Test Development Engineer is a recognized technical leader responsible for defining and driving advanced test solutions for PSG's next-generation power semiconductor portfolio, including Silicon (Si), Silicon Carbide (SiC), IGBT, and Gallium Nitride (GaN) technologies.

This role provides strategic and technical leadership across wafer sort, die-level test, package final test, and power module test development. The successful candidate will lead the development of robust, cost-effective, and scalable test solutions that support product qualification, manufacturing ramp, yield optimization, and long-term business growth.

The position requires deep expertise in power semiconductor testing, mixed-signal product development, statistical data analysis, and cross-functional collaboration with Design, Product Engineering, Quality, Operations, and Manufacturing teams across multiple global sites.

Technical Leadership

• Provide technical leadership and mentorship for a global team of test development engineers.
• Support PSG test technology roadmap implementation for next-generation power devices and intelligent power solutions.
• Drive test architecture decisions from product concept through high-volume manufacturing.
• Establish best practices, methodologies, and reusable test platforms across PSG product families.

New Product Development (NPD)

• Lead test development activities for new products including:
• Power MOSFETs
• IGBTs
• SiC MOSFETs
• SiC Modules
• GaN Discrete Devices
• Intelligent Power Modules (IPM)
• Driver + Power MOSFET integrated solutions
• Mixed-signal power products
• Support product characterization, qualification, reliability stress testing, and production release.
• Partner with Design and Product Engineering teams to ensure Design-for-Test (DFT) and manufacturability objectives are achieved.

Test Development

• Architect and develop wafer sort and final test solutions.
• Design and implement:
• Test hardware
• Load boards
• Probe cards
• Interface boards
• Socket solutions
• Automated test software
• Define optimized multisite test strategies for cost reduction and throughput improvement.
• Develop test methodologies for high-voltage, high-current, fast-switching power semiconductor devices.

Mixed-Signal & Driver Products

• Lead test solution development for mixed-signal power products including:
• Gate drivers
• Driver + MOSFET combinations
• Intelligent power devices
• Protection and control functions
• Develop methodologies for analog, digital, timing, and power parametric testing.
• Collaborate with IC Design teams on production test coverage and fault screening strategies.

Data Analytics Skill

• Advanced statistical methods to drive data-based decisions.

Qualifications

Education

• Bachelor's degree in Electrical Engineering, Electronics Engineering, Physics, or equivalent.
• Master's degree preferred.

Experience

• Minimum 10+ years of semiconductor test engineering experience.
• Minimum 5+ years of direct test development experience.
• Proven experience in power semiconductor products including Si, SiC, IGBT, and/or GaN technologies.
• Demonstrated technical leadership in NPI and production test deployment.

Technical Skills

Strong Expertise In

• Wafer Sort Development
• Final Test Development
• Die-Level Characterization
• Power Module Testing
• Mixed-Signal Testing
• Power Discrete Testing
• Product Characterization
• Statistical Analysis
• Yield Optimization
• Root Cause Analysis

Preferred ATE Platforms

• Teradyne ETS Series
• Advantest Platforms
• Cohu / Multitest
• Accotest Platforms
• Equivalent high-power semiconductor test systems

Programming & Data Analytics

• C/C++
• Python
• VBA / Automation Scripting
• SQL
• JMP
• Minitab
• Power BI
• Advanced Excel Analytics

Laboratory Skills

• Oscilloscope
• Power Analyzer
• Curve Tracer
• Function Generator
• High-Voltage Characterization Equipment
• Double-Pulse Test Systems

Leadership Competencies

• Strategic technical thinker
• Strong system-level problem-solving skills
• Excellent project management capability
• Strong communication and stakeholder management skills
• Effective cross-functional influence without direct authority
• Ability to lead global and multicultural teams
• Data-driven decision maker

Preferred Experience

Candidates with experience in one or more of the following will have a strong advantage:

• SiC MOSFET and module development
• GaN device testing and characterization
• Driver IC and analog mixed-signal product testing
• Automotive and industrial power products
• High-voltage power module test development
• AI-assisted engineering analytics

Test methodology standardization across global manufacturing sites

About Us

onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

More details about our company benefits can be found here: https://www.onsemi.com/careers/career-benefits

About The Team

We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.