Automation Systems Engineer – PLC & IIoT

Job Description Job Title: Automation Systems Engineer – PLC & IIoT Location: Zoetermeer, Netherlands Reports to: R&D Manager Contract Type: Full time About LG Sonic: LG Sonic is a global leader in sustainable water quality management, dedicated to developing cutting-edge technologies that help protect water ecosystems. With operations in over 50 countries, we specialize in advanced solutions for algae control, water quality monitoring, and environmental protection. Our award-winning ultrasonic technology, combined with real-time data monitoring, empowers industries, municipalities, and governments to maintain clean and healthy water bodies while reducing chemical use. At LG Sonic, we foster a dynamic and innovative work environment, driven by a passion for sustainability and technological excellence. Join our team and be part of a mission to create cleaner water for future generations. Position Summary: At LG Sonic, we deliver innovative water quality monitoring and algae control solutions worldwide. You will optimise our existing water-quality monitoring station and spearhead the development of a next-generation PLC-based system that manages pumps and valves for reservoir water intake and parameter measurement. The role extends to designing control strategies for efficient operation. If you have 3 years of experience as an automation engineer or in PLC programming, we’d love to hear from you. Position duties and responsibilities: ∙ Design & program PLC systems: develop, test, and commission control logic on CODESYS supported PLCs using IEC 61131-3 languages (ST, LD, SFC, IL). ∙ Optimise and evaluate existing system, identify bottlenecks, and implement design improvements to maximise reliability and energy efficiency. ∙ Specify and interface pumps, valves, sensors, safety interlocks, and instrumentation; ensure compliance with relevant electrical and process-control standards. ∙ MODBUS - RS485 device networking; MQTT gateway to cloud platform ∙ Draft P&IDs, electrical schematics, enclosure drawings; ensure CE/UL & safety compliance ∙ Collaborate with other teams to deploy AI/IoT analytics and real-time dashboards to anticipate failures and minimise downtime. ∙ Configure and troubleshoot industrial communication protocols to ensure reliable data exchange ∙ Maintain clear technical documentation, risk analyses, and status updates for stakeholders; provide training and hand-over materials for production and service teams. ∙ Strong analytical and problem-solving skills, with the ability to work effectively under pressure and meet deadlines. Preferred to Have: ∙ Experience with water - treatment or process - skid equipment ∙ Experience with Profibus, Profinet or other real-time fieldbus networks. ∙ Exposure to battery-management systems (BMS) and solar systems. ∙ Knowledge of Microsoft technologies (C#, Visual Basic, WinForms/WPF). Qualification and requirements: ∙ Bachelor’s or Master’s in Electrical Engineering, Industrial Automation, Mechatronics or similar. ∙ 3 or more years hands-on experience with multidisciplinary automation systems. ∙ Strong CODESYS programming on PLCs (preferably Weidmüller PLCs) ∙ Competence in IEC 61131-3 languages: LD, ST, SFC, IL. ∙ Solid grasp of control systems, sensor fusion and industrial protocols (Modbus TCP/RTU, RS232, MQTT). ∙ Professional English proficiency (spoken & written). ∙ Good problem-solving skills and attention to detail. ∙ Ability to work in a collaborative, cross-functional team environment. Why Join LG Sonic? At LG Sonic, we offer an exciting and collaborative work environment where your contributions directly impact our mission of environmental sustainability and innovation. By joining our team, you will have the opportunity to grow professionally while being a part of a global leader in water treatment technology. We believe in investing in our people and fostering an inclusive culture where every team member’s ideas are valued. LG Sonic Values : Unity, Trust, Positivity, Over deliver and ‌Passion. Application Process: If you are interested in joining LG Sonic, we encourage you to apply by following these steps: ● Submit Your CV: Send your updated CV to HR@lgsonic.com with the subject line: Automation Systems Engineer – PLC & IIoT ● Apply via Recruitment Platforms: You can also apply through recruitment websites where this position is posted. ● Application Review: Our HR team will carefully review all applications and contact shortlisted candidates for further steps. ● Hiring Process: Selected candidates will be invited for a written test (optional depending on position) followed by interviews to assess their skills, experience, and suitability for the role.

Location: Zoetermeer, South Holland, NL

Posted Date: 7/30/2025