Holcim AG
Würenlingen
Plant OT Engineer / OT Engineer:in Plant
- 15 November 2026
- 100%
- Würenlingen
About the job
Holcim (Switzerland) AG is one of Switzerland's leading providers of innovative and sustainable construction solutions in the fields of building construction, civil engineering and infrastructure. With around 1200 employees at over 60 locations across Switzerland, we produce concrete, gravel and cement and recycle demolition materials into resource-saving products.
Plant OT Engineer / OT Engineer:in Plant
Würenlingen, AG, CH, 5303
With us, you can expect diverse and challenging areas of responsibility, where we always pay attention to health, safety and environmental awareness. We place great importance on you being able to maintain a balance between your professional and private life. A collegial working atmosphere, fair employment conditions and the promotion of your personal development are a matter of course for us.
Are you passionate about automation, industrial networks and digital technologies? Then help us shape the production of tomorrow!
As a Plant OT Engineer, you connect IT and production, continuously develop our systems and ensure that our plants remain safe, reliable and future-proof.
What to expect:
- Ensuring the availability, reliability and security of our industrial control and OT systems (ICS/TIS)
- Implementation and further development of company-wide standards for automation, data architecture and digital production systems
- Configuration, optimisation and troubleshooting of industrial networks and communication protocols such as Profinet, Modbus and OPC UA
- Support and further development of control, MES and historian systems including system upgrades and lifecycle management
- Ensuring smooth interfaces between production control (DCS/PLC), quality management (LIMS) and SAP
- Implementation of innovative digitalisation solutions within our "Plant of Tomorrow" initiative to increase efficiency and sustainability
- Ensuring OT cybersecurity according to IEC 62443 as well as ensuring data quality, integrity and security
- Coordination of external service providers as well as technical support for system tests, commissioning and plant acceptance
- Training and support of our employees in dealing with OT systems as well as promoting internal knowledge transfer
- Close cooperation with production, maintenance, quality management and IT as well as participation in on-call duty
What you bring:
- Completed studies or further training as a technician in electrical, automation, electronics or systems engineering
- At least three years of professional experience in automation or systems engineering, ideally in continuous process or cement industry
- Sound knowledge of industrial control and automation systems such as DCS, SCADA, PLC, MES and instrumentation technology
- Several years of experience with industrial data systems, networks and communication protocols such as Profinet, Ethernet/IP, Modbus and OPC UA
- Knowledge of OT cybersecurity (IEC 62443), cloud and IIoT technologies as well as ideally experience with Python or JavaScript
- Strong analytical skills and an independent, pragmatic and solution-oriented working style
- Strong communication skills, team spirit and enjoyment of cross-departmental collaboration as well as training and supporting employees
- Very good German skills as well as good to very good English skills in spoken and written form
Our offer:
- Onboarding & Entry: Look forward to a team-oriented, open and future-oriented working environment. We accompany you from the very beginning with careful training, practical and structured, so that you can start successfully.
- Career & Development: We create opportunities. With us, you as a person with your individual strengths and potential are at the centre. Those who want to will be supported and can achieve a lot with us.
- Appreciation & Team Culture: With us, you are part of a strong and inclusive team that sticks together, shares ideas and masters challenges together. A trusting leadership culture ensures that your commitment is seen and appreciated.
- Flexibility & Work-Life Balance: We offer flexible working hours, a 41-hour week, part-time options, 25-30 days holiday, holiday purchase, extended maternity and paternity leave
- Attractive Remuneration: We offer our employees an attractive remuneration package with many additional benefits and a very good pension fund
- Employee Benefits: From Reka checks to shares at preferential prices to the Swibeco benefits world - we ensure that you feel completely comfortable and benefit from attractive additional benefits
We are proud to live a culture of diversity and inclusion. Our policies and practices are designed to protect our employees, build trust and support them in reaching their full potential.
Our corporate values stand for equal treatment of all persons with regard to employment and employment opportunities. We actively ensure that ethnic or national origin, religion, sexual orientation, marital status, gender, gender identity, age, disability and other legally protected characteristics do not play a role in recruiting and developing talent. We invite you to become part of our culture and to help us create an inclusive and diverse working environment together.
