Senior Staff Software Engineer

Power Semiconductor

System Application Team – PV & ESS (Residential & C&I) Your role The Senior Staff Software Engineer leads embedded control software development for power conversion system reference solutions, serving both residential and commercial & industrial (C&I) PV and energy storage scenarios. Our team builds system-level reference solutions based on the company’s full product portfolio, including power semiconductors, MCUs, gate drivers and sensors, to fully unlock the performance advantages of our device lineup. You will design and optimize digital control software, and collaborate cross-functionally with product lines, hardware, test and manufacture teams to deliver high-efficiency, reliable reference solutions that balance performance and cost targets across diverse application scenarios. Key responsibilities in your new role Own

end-to-end embedded control software development for PV & ESS power

converter reference systems, covering grid-tied control, energy storage

management, protection logic design, algorithm implementation, coding,

debugging, prototype verification and version iteration. Cooperate

with hardware engineers to define software-hardware interfaces, design matching

control algorithms and MCU peripheral low-level drivers for target power

topologies, and conduct joint hardware-software debugging on lab prototypes

built with our MCU, gate driver, power semiconductor and sensor products. Build

system and control algorithm simulation models to validate control logic,

optimize dynamic response and efficiency prior to hardware implementation. Support

system design roadmap definition, provide software technical assessment for

residential and C&I reference design requirements, and propose control

solutions. Troubleshoot

control and software-related anomalies during internal lab validation and

customer reference board testing, perform root cause analysis and deliver

optimized software releases. Provide

technical support to internal teams and external customers, and compile

application notes and technical troubleshooting documents for our integrated

system solutions. Your profile Qualifications and skills to help you succeed  Education:

Master’s degree or above in Electrical Engineering, Power Electronics, Control

Engineering or related disciplines. Work

Experience: Minimum  3  years of hands-on digital power control software

development experience, with a background in PV/ESS inverter or related power

conversion system development. Topology

Knowledge: Familiar with at least 2–3 mainstream power conversion topologies

among NPC1, NPC2, ANPC, HERIC, Buck/Boost, LLC, DAB, with solid understanding

of their working principles and PV/ESS application scenarios. Control

Algorithm Design: Capable of independently developing control algorithms for

the above power topologies, including current/voltage closed loops, PI/PID and

PR controllers, feedforward control and state machine design. Proficient in

grid-tied inverter control with core focus on grid-following and grid-forming

control, as well as PLL and active/reactive power regulation. Hands-on

experience with ESS PCS control, battery charge/discharge management, BMS

communication and energy management functions. Able to design fault detection,

protection algorithms, diagnostics and fault handling mechanisms with

safety-oriented software design awareness. MCU Embedded

Software & Driver Development: Proficient in MCU peripheral low-level

driver development and real-time digital control implementation, including PWM

generation, ADC synchronization, interrupt handling, DMA transfer and core

peripheral configuration. Skilled in C/C++ embedded programming with good

programming practices for standardized, readable, reusable and maintainable

code. Simulation

Capability: Able to conduct system-level and control algorithm simulation for

power converter applications. Tool

Proficiency: Skilled in embedded IDEs, oscilloscopes, power analyzers and other

mainstream test & debugging tools for power electronics. Problem

Solving: Strong systematic troubleshooting ability to resolve complex control

and system-level technical issues. Communication

& Teamwork: Effective cross-team communication skills and strong teamwork

mindset to align with hardware, device and test teams. Language

Skill: Working English proficiency for daily technical discussion, document

writing and customer communication. Preferred Qualifications Hands-on

project experience developing control software based on wide-bandgap (GaN/SiC)

power semiconductors, power MCUs and gate driver ICs. Project

experience with high-power C&I grid-tied inverters, large-capacity ESS PCS

reference platforms, or LVRT/HVRT and anti-islanding compliance function

development. Strong innovation capability in advanced power

conversion control, with the ability to explore novel control strategies and

implement them into system reference solutions. #WeAreIn for driving decarbonization and digitalization. As a global leader in semiconductor solutions in power systems and IoT, Infineon enables game-changing solutions for green and efficient energy, clean and safe mobility, as well as smart and secure IoT. Together, we drive innovation and customer success, while caring for our people and empowering them to reach ambitious goals. Be a part of making life easier, safer and greener. Are you in? We are on a journey to create the best Infineon for everyone. We strive to create the best Infineon for everyone by embracing diversity and inclusion. We welcome applicants for who they are and offer a workplace built on trust, openness, respect and equal opportunity.  Our hiring decisions are based on skills and experience. Even if you don’t meet every requirement, we encourage you to apply. Please let your recruiter know if you need any accommodations during the interview process. Learn more about our various contact channels and about Diversity & Inclusion at Infineon. [email protected]