The Role
Design, architect, implement, and validate embedded real-time software for MW-scale grid-connected converters/inverters. Implement control algorithms, state machines, fault handling, communications (CAN, EtherCAT, SPI, UART), and support SIL/HIL validation, prototype bring-up, commissioning, and field testing. Collaborate with system, control, hardware, and test teams and mentor junior engineers.
Summary Generated by Built In
Our Client is a Technical Group of global specialist in electric power conversion providing solutions to 47 countries worldwide. With offices, production sites, R&D, and service centers across Europe, the Americas, and Asia, our Client serves a global customer base in both OEM and Aftermarket & Service business areas. The central group functions are located in Germany and Krakow (Poland), while their OEM business units have locations in Bulgaria, the USA, Brazil and Japan.
The Senior Software Engineer - Frequency converters, reports to the Engineering Manager. This position works under a low level of supervision with a high level of independent work. As a Software Engineer, you will focus on the architecture, development, and reliability of embedded and real-time software for high-power, grid-connected converters and inverters.You will be responsible for software concepts from the early system definition stage through validation and field deployment, working at the intersection of control systems, power electronics, system engineering, and embedded platforms.
Responsibilities:
- Development of embedded and real-time software architectures for MW-scale converters/inverters.
- Definition of software architecture, task scheduling, and interfaces for converter/inverter control platforms.
- Implementation of control algorithms (inner current loops, outer voltage and power functions) in close collaboration with control engineering.
- Support definition of converter/inverter topology, control realisation, and system integration approach for the company’s new products.
- Implementation of state machines, fault handling, protection mechanisms, and diagnostics.
- Optimization of software for real-time performance, determinism, numerical robustness, and reliability.
- Implementation and maintenance of communication interfaces (e.g., CAN, EtherCAT, Ethernet, SPI, UART).
- Support of grid code requirements (LVRT/HVRT, fault ride-through, reactive power support) through software implementation.
- Validation through SIL, HIL, and support during prototype bring-up, commissioning, and field testing.
- Close collaboration with system, control, hardware, and test teams to optimize performance, robustness, and scalability.
Other Functions:
- Provides technical mentorship to junior software engineers and supports growth of the software engineering team.
- Defines software interfaces and integration concepts with embedded hardware platforms.
- Contributes to intellectual property creation (patents, technical disclosures).
Requirements
- BS degree in Electrical/ Computer Engineering required. Post-graduate technical degree desired.
- Greater than 5 years in related field required, including post-graduate experience.
- Strong knowledge of embedded software development for power electronics systems.
- Proven experience with MW-scale converter/inverter platforms.
- Solid understanding of control theory implementation for power converters (current, voltage, power, DC-link control).
- Experience with real-time systems, scheduling, interrupts, and timing constraints.
- Knowledge of digital control implementation effects (sampling, delays, discretization, numerical limits).
- Proficiency in C/C++ for embedded and real-time applications.
- Experience with DSPs, MCUs, or SoCs used in high-power converter control.
- Familiarity with communication protocols and industrial fieldbuses.
- Experience with SIL, HIL, and system-level testing.
- Understanding of grid-connected converter behaviour and grid code requirements.
- Ability to define software architecture and integration approaches for complex converter systems.
- Strong system-level thinking and cross-functional collaboration skills.
Benefits
- Work on innovative renewable energy projects.
- Stable employment with a company of established global market position.
- Professional development opportunities and technical training.
- Work at an R&D centre with access to state-of-the-art research infrastructure.
- Attractive compensation package corresponding with experience plus yearly bonus.
- Hybrid work model.
Skills Required
- BS degree in Electrical or Computer Engineering
- Post-graduate technical degree
- Greater than 5 years in related field
- Strong knowledge of embedded software development for power electronics systems
- Proven experience with MW-scale converter/inverter platforms
- Solid understanding of control theory implementation for power converters (current, voltage, power, DC-link control)
- Experience with real-time systems, scheduling, interrupts, and timing constraints
- Knowledge of digital control implementation effects (sampling, delays, discretization, numerical limits)
- Proficiency in C/C++ for embedded and real-time applications
- Experience with DSPs, MCUs, or SoCs used in high-power converter control
- Familiarity with communication protocols and industrial fieldbuses (CAN, EtherCAT, Ethernet, SPI, UART)
- Experience with SIL, HIL, and system-level testing
- Understanding of grid-connected converter behaviour and grid code requirements (LVRT/HVRT, fault ride-through, reactive power support)
- Ability to define software architecture and integration approaches for complex converter systems
- Strong system-level thinking and cross-functional collaboration skills
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The Company
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