Team Members
Michael Geissmann
CEO
Michael is CEO at Astrol since 2016. He is also a Vice President at Sun.King Power Electronics Group, overseeing the European business of the group.
Andy Stöckli
CTO
Andreas (Andy) Stöckli. Inventor & author. Our visionary CTO since 1996, shapes Astrol's success with his technical leadership.
Urs Weiersmueller
Assembly Specialist
Urs is a material and manufacturing expert with his main focus on high-voltage assemblies.
Stefan Siegrist
Electronics Engineer
Stefan Siegrist, Electrical Engineer at Astrol since 2005, pioneers new hardware/software developments, focusing on customized electronics.
Josep Guasch Martinez
Firmware Engineer
Josep joined us in March 2025 as our new Firmware Engineer. While the official title might say "Electronics Engineer," here at Astrol, he'll be diving deep into the world of firmware.
Josef Helfenstein
Electronics Technician
Josef is responsible for production and testing of our products, with a main focus on solid-state breakers and power switches.
Daniel Kuhn
Electronics Engineer
Daniel Kuhn, our Embedded Hardware and Software Engineer, shapes cutting-edge solutions for our innovative projects.
Benjamin Schnider
Electronics Technician
Benjamin Schnider, our skilled Production Worker, ensures quality in gate units, power supplies, and electronics.
Armin Saule
PCB Designer
Armin Saule, our skilled PCB-Designer at Astrol. Excels in meticulous PCB layout for gate units, power supplies, and custom electronics.
Florian Medjimorec
Mechanical Engineer
Astrol's Mechanical Engineer, Florian Medjimorec, with 3 years of experience, excels in concept, design, and problem-solving.
Marius Marti
Electrical Engineer
Marius, our Electrical Engineer. He designs customer-specific solutions and PCBs focused on power electronics.
Ramon Magatti
Electrical Engineer
Ramon Magatti, Astrol's talented Electrical Engineer excels in device conceptualization and has a collaborative spirit.
Oldrich Sosolik
Since joining Astrol in October 2021, Oldrich Sosolik has been an integral part of our team, driving innovative projects through close collaboration with colleagues.
Dragan Nikolic
Procurement
Sevdije Berisha
Backoffice Manager
Sevdije Berisha, our Backoffice Manager. Responsible for our back office operations, order processing, accounting, and human resources.
