Automation IT Engineer

Ecolab is seeking an Automation IT Engineer for its Witterswil site, where the company delivers sustainable solutions for the food‑service, hospitality and industrial markets. In this position you will be responsible for creating, programming and sustaining PLC‑based control architectures together with the associated SCADA/HMI visualisation layers that support the firm’s manufacturing operations. Your daily work will involve close interaction with process engineers, IT security specialists and production staff to resolve system incidents, roll out software revisions and bring new machinery online within the existing automation framework. You will ensure that data collection is reliable and timely, and that the control logic contributes to ongoing process optimisation and digital transformation initiatives. The role requires a minimum of three years’ practical experience with industrial automation hardware such as Siemens or Rockwell platforms, and solid competence in IEC 61131‑3 programming languages. A good grasp of network concepts, cybersecurity requirements and Industry 4.0 principles is essential, as is prior exposure to a regulated sector like food‑service or chemicals. A proactive attitude toward continuous improvement is also expected. Working at Ecolab offers the opportunity to engage in advanced digitalisation projects, collaborate within a global leader’s team and develop expertise in sustainable manufacturing while based in the Swiss town of Witterswil.