Control Systems Engineer – Frequency converters, Level 2

Ctoem; Polska; Hybrid; PLN 330,000 - 466,000; Full time

Job summary

ConverterTec Group seeks a Control Systems Engineer to develop and validate advanced control architectures for high-power, grid-connected converters, bridging power electronics and system engineering. You will own control concepts from definition through field deployment in a hybrid work environment.

Responsibilities include multi-loop control development, PLL/grid-following algorithm tuning, MATLAB/Simulink modeling, grid-code compliance, digital controller implementation, and SIL/HIL

Qualifications

• BS degree in Electrical Engineering, Electronic Engineering, Control Engineering, or a related field.
• Minimum 2 years in control systems engineering, power electronics, drives, renewable energy, UPS, or related.
• Experience with MATLAB/Simulink and control system development.
• Experience with laboratory validation and testing of power electronic or industrial control systems.

Responsibilities

• Develop multi-loop control systems for converter and inverter applications, including current, voltage, and power control loops.
• Participate in selection and implementation of control methods for company products.
• Assist in control system modeling and stability analysis using MATLAB/Simulink.
• Support the development and tuning of PLL, grid-following, and related synchronization algorithms.
• Participate in implementation of grid code requirements such as LVRT/HVRT and reactive power control.
• Support digital controller implementation considering sampling and discretization effects.
• Develop simulation models and support model-based design activities.
• Perform SIL and HIL validation activities under the guidance of senior engineers.
• Support prototype commissioning, laboratory testing, and debugging activities.
• Analyze system performance and propose improvements.
• Collaborate closely with hardware, software, and system engineering teams.

Skills

Power electronics

Control theory

MATLAB/Simulink

PI/PID tuning

Grid-connected inverter

PWM/SVM basics

System engineering

Testing & debugging

Education

BS degree in Electrical Engineering, Electronic Engineering, Control Engineering, or a related field

Job description

NPI Engineering – Power Electronics Hybrid Full-time Valid until 30/09/2026

Position purpose

The Control Systems Engineer, reports to the Engineering Manager. This position works under a low level of supervision with a high level of independent work. This position focuses on the architecture, design, and stability of advanced control systems for high-power, grid-connected converters. The Control Systems Engineer own control concepts from early system definition through validation and field deployment, working at the intersection of power electronics, system engineering, and high-performance energy conversion solutions.

Essential Functions

• Support the development of multi-loop control systems for converter and inverter applications, including current, voltage, and power control loops.
• Participate in the selection and implementation of control methods for company products.
• Assist in control system modeling and stability analysis using MATLAB/Simulink.
• Support the development and tuning of PLL, grid-following, and related synchronization algorithms.
• Participate in the implementation of grid code requirements such as LVRT/HVRT and reactive power control.
• Support digital controller implementation considering sampling and discretization effects.
• Develop simulation models and support model-based design activities.
• Perform SIL and HIL validation activities under the guidance of senior engineers.
• Support prototype commissioning, laboratory testing, and debugging activities.
• Analyze system performance and propose improvements.
• Collaborate closely with hardware, software, and system engineering teams.

Other Functions

• Support the development and maintenance of technical documentation.
• Participate in design reviews and technical discussions.
• Contribute to the continuous improvement of engineering processes and tools.
• Support the development of testing procedures and validation methodologies.

Knowledge/Skills/Abilities

• Good understanding of power electronics and converter/inverter systems.
• Understanding of classical control theory and feedback control systems.
• Familiarity with MATLAB/Simulink modeling and simulation tools.
• Knowledge of PI/PID controller design and tuning techniques.
• Understanding of digital control concepts, including sampling and discretization.
• Familiarity with grid-connected inverter operation and synchronization methods.
• Basic understanding of modulation techniques such as PWM and SVM.
• Ability to analyze test results and troubleshoot control-related issues.
• Familiarity with laboratory testing equipment and measurement techniques.
• Strong analytical and problem-solving skills.
• Ability to work effectively within multidisciplinary engineering teams.

Education or Formal Training

• BS degree in Electrical Engineering, Electronic Engineering, Control Engineering, or a related field required.

Experience Required

• Minimum 2 years of experience in control systems engineering, power electronics, drives, renewable energy systems, UPS systems, or a related field.
• Experience with MATLAB/Simulink and control system development.
• Experience with laboratory validation and testing of power electronic or industrial control systems.
• Familiarity with converter or inverter applications is considered an advantage.

As an equal chance employer, ConverterTec Group highly appreciates female applicants and is committed to fostering diversity and inclusion in our workforce.