About this role
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.
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