Power Electronics Hardware Intern

About the Team

Our Semiconductor and Power Electronics team focuses on the development of advanced power-electronics and semiconductor solutions for next-generation electric powertrain systems.

Our work covers SiC power-semiconductor applications, circuit and PCB design, hardware integration, prototype development, semiconductor characterization and high-voltage validation.

As an international and fast-growing R&D team, we work closely across technical functions and locations to develop, build and validate innovative hardware solutions.

We are looking for a motivated Power Electronics Hardware Intern who is interested in gaining hands-on experience across the development process—from circuit and PCB design to prototype implementation and experimental validation.

Your Responsibilities

1. Circuit and PCB Design

• Support the design of power-electronics circuits and related hardware for automotive and semiconductor applications.
• Assist with schematic design and PCB layout using Altium Designer or Cadence.
• Support the selection and evaluation of components such as SiC MOSFETs, IGBTs, gate drivers, capacitors, inductors, sensors and protection devices.
• Perform basic electrical calculations and simulations under the guidance of experienced engineers.
• Participate in design reviews and document design changes and technical findings.

2. Hardware and Mechanical Integration

• Support the development of high-current, high-voltage and mixed-signal PCBs.
• Assist in reviewing electrical isolation, creepage and clearance distances, EMC, thermal performance and manufacturability.
• Use 3D modelling tools to support the packaging and mechanical integration of power-electronics hardware.
• Prepare design files, bills of materials and technical documentation for prototype manufacturing.
• Support the coordination of prototype production, assembly and inspection.

3. Prototype Commissioning and Debugging

• Support the initial power-up, commissioning, debugging and functional verification of hardware prototypes.
• Assist in identifying hardware faults and analysing potential root causes.
• Work with senior engineers to implement and verify design improvements.
• Document technical issues, test observations and troubleshooting results.

4. Semiconductor Characterization and Hardware Testing

• Assist with the characterization of power-semiconductor devices and related circuits.
• Support electrical, functional and performance testing under different operating conditions.
• Use laboratory equipment such as oscilloscopes, power analysers, high-voltage probes, current probes, electronic loads and thermal-measurement equipment under appropriate supervision.
• Support the evaluation of switching behaviour, efficiency, losses and thermal performance.
• Follow all laboratory and high-voltage safety procedures.

5. Technical Collaboration

• Collaborate with semiconductor, electrical, mechanical, thermal and testing engineers.
• Work with engineering teams in Germany and China on technical tasks and prototype development.
• Prepare test records, technical summaries and presentations.
• Take ownership of assigned tasks and proactively communicate progress, risks and support needs.

Requirements

1. Education

• Currently enrolled in a Master’s or PhD's degree programme in Power Electronics, Semiconductor Engineering, Microelectronics, Semiconductor Packaging, Electrical Engineering or a closely related field.
• A strong academic or project background in power electronics or semiconductor hardware is expected.
• Previous project experience involving SiC power semiconductors is highly preferred.

2. Mandatory Technical Skills

• Previous academic, research or personal-project experience in PCB design is required.
• Experience with at least one of the following design tools: Altium Designer and Cadence.
• Basic practical experience with at least one 3D modelling or mechanical-design tool.
• Basic understanding of power-electronics circuits, semiconductor devices and electronic-hardware development.
• Willingness to participate in hands-on hardware assembly, commissioning and laboratory testing.

3. Preferred Experience

• Experience with SiC power-semiconductor projects.
• Experience with gate-driver circuits, protection circuits or power-converter hardware.
• Experience with semiconductor characterization or electrical testing.
• Previous exposure to high-voltage hardware or high-voltage measurements.
• Familiarity with EMC, electrical isolation and thermal-management principles.
• Experience with MATLAB/Simulink, PLECS, LTspice, Python or comparable simulation and data-analysis tools.

This internship includes both design and testing activities. Applicants whose experience is limited exclusively to semiconductor testing, without any relevant circuit or PCB design experience, may not match the core focus of the position.

4. Personal Competencies

• Strong sense of responsibility, ownership and reliability.
• Proactive and solution-oriented mindset.
• Ability to work independently on clearly defined technical tasks while seeking guidance when necessary.
• Willingness to learn quickly and work in a fast-paced, early-stage team environment with evolving processes.
• Good teamwork and communication skills in an international and cross-cultural environment.
• Good written and spoken English; German or Chinese language skills are an advantage.

What We Offer

• Direct involvement in advanced SiC and power-electronics hardware-development projects.
• Mentorship from experienced semiconductor and power-electronics engineers.
• Hands-on experience with circuit design, PCB development, prototype assembly and laboratory validation.
• Exposure to the complete hardware-development process, from initial concept and component selection to prototype commissioning and experimental verification.
• Practical experience using professional electronic-design tools and laboratory equipment.
• Collaboration with international engineering teams at Li Auto’s Germany R&D hub in Munich.
• Competitive internship compensation.
• Possibility of a thesis project, working-student position or full-time opportunity based on performance, business needs and graduation status.

About Li Auto Germany R&D

Li Auto is one of China’s leading new-energy vehicle manufacturers, known for its extended-range and high-voltage battery-electric vehicle platforms.

Our Germany R&D Center contributes to the European development, adaptation and validation of advanced automotive technologies. We work at the intersection of innovative hardware, advanced software and real-world engineering validation.