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Personal Values & Corporate Vision:
Fabian embodies an entrepreneurial mindset that combines innovation, responsibility, and a long-term perspective:
*He fosters a culture where mistakes are seen as opportunities to learn, open communication is encouraged, and teamwork is valued.
*For him, sustainability means not only ecological balance but also social and economic balance—for example, through an attractive workplace and long-term, sustainable solutions.
*Under his vision, Intersys aims to help companies as a technology partner master the complexity of digitalization and create real added value—not just technical features.

Professional Background & Role at Intersys:
Fabian Rezzonico has been with Intersys for over 25 years and has progressed through various roles, from software engineer to member of the executive board and ultimately to the helm of the company. Today, he is CEO and co-owner of Intersys AG.
Throughout his career, he spent many years working as a software engineer on various client projects, shaping sophisticated software solutions from conception through to successful implementation. Over the course of his career, he assumed increasing responsibility in technical, consulting, and leadership roles, developing a deep understanding of software development, IT strategy, and sustainable corporate management.
As co-owner and CEO, he is now responsible for the strategic direction and operational management of Intersys AG and drives the company’s continuous development as an innovative and Leadership Philosophy & Strategic Focus Fabian’s leadership style is characterized by a practical, innovation-driven approach: Extensive experience: He has witnessed technological changes over decades—from traditional client-server systems to cloud transformations and the integration of AI-based solutions.

Frank Wettstein is Head of Technology at Intersys AG, an established software and digitalization partner based in Zuchwil (Canton of Solothurn).
Professional Background & Role at Intersys
After completing his studies in computer science at the University of Bern, Frank Wettstein began his professional career in 2007 as a software engineer in the field of web applications. At Rolotec AG, he developed and maintained applications for the stock exchange sector before taking on responsibility for a team of developers as Team Leader for Web Applications.
Frank Wettstein subsequently worked at SIX Group as Head of Web Applications. In this role, he led several teams and was responsible for the development of IT services in the areas of stock market information, ETF calculations, and compliance.
Frank Wettstein has been with Intersys AG since 2019, initially as CTO and a member of the Executive Board. In this role, he led the development and operation of various IT software solutions for clients across different industries. Since October 2022, as Head of Technology, he has been responsible for the company’s technological direction and is actively involved in DevOps/Operations.
Leadership Philosophy & Strategic Focus
Increasing Autonomy: Frank is committed to consciously reducing technological dependencies and avoiding vendor lock-in as much as possible. The goal is to preserve freedom of choice and maintain long-term operational flexibility. A key component of this autonomy is the use of open-source software.
Driving automation: Another key focus is on the consistent standardization and automation of recurring processes. This is intended to reduce sources of error, increase efficiency, and free up time for other tasks.
Ensuring Measurability: Guided by the principle “You can’t improve what you don’t measure,” Frank places great emphasis on transparency, measurability, and continuous improvement. Meaningful monitoring, clear metrics, and transparent analyses lay the foundation for optimizing systems in a targeted manner, identifying risks early on, and making well-informed decisions.

Personal Values & Corporate Vision
Focus on People: Every company is only as successful as its employees. That’s why recruiting and retaining the right employees over the long term is crucial. For Frank, it’s important that employees bring a passion for IT to the table.
Increasing Customer Value: IT should make a tangible difference for customers. Frank wants to create solutions that not only work reliably but also positively surprise customers—through simpler processes, greater security, higher efficiency, and a level of quality that inspires.