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Your independent Swiss competence center for EULYNX, RaSTA Stack, and safety-critical rail solutions according to EN 50716.

Who We Are

CSA Engineering AG is a leading Swiss engineering company specializing in safety-critical software and systems for the railway industry. With over 35 years of experience and profound expertise in EULYNX and RaSTA Stack, we are your reliable partner for digital transformation in rail transport.

Our team of certified experts develops solutions that meet the highest safety standards. We support our clients from conception through development to certification. Everything from a single source.

As an active member of SwissRail, we significantly contribute to the standardization and advancement of modern rail technologies. Our RaSTA Stack is the reference implementation for safe communication in the railway sector.

Our Values

Quality

Highest standards in everything we do. From development to documentation.

Expertise

Certified specialists with deep expertise in safety-critical systems.

Partnership

Long-term collaboration on equal footing with our customers and partners.

Our Experts

Meet the team behind our innovative solutions.

Nicolas Andres

RaSTA & EULYNX Expert

"Standardized interfaces like EULYNX are a key component for the interoperability of European railway systems. Secure transmissions based on the RaSTA stack significantly enhance the reliability, availability, and security of communication between Object Controllers (OC) and Electronic Interlockings (EIL)."

Expertise:

Comprehensive expertise in the development and certification of RaSTA implementations and in-depth knowledge of EULYNX architectures (MEC, OC) with consideration of modern security concepts such as NTS, PKI certificate management, and OPC UA.

Martin Kuhn

RaSTA Expert

"During the development of the RaSTA stack, I implemented comprehensive unit and integration tests to ensure reliability and security in communication."

Expertise:

Certified Tester and Test Manager according to ISTQB.

Daniel Niggli

Requirements Engineer

"Clear requirements are much more than documentation for me – they are the cornerstone for functional safety and efficient system development."

Expertise:

CAS Railway Infrastructure, Requirements Specialist according to EN 50126, 50128/50716, 50129, Railway - Functional Safety Engineer, knowledge of the EULYNX architecture.

Roland Schenk

RaSTA Expert & Requirements Engineer

"Standardized interfaces like EULYNX and RaSTA are the future of European rail networks. We ensure robust and reliable implementation."

Expertise:

Years of expertise in system and software requirements according to EN 50126, EN50128/50716, and software architecture, design, and implementation in the area of RaSTA and EULYNX Object Controller.

Adrian Annaheim

Specification Expert

"Clear specifications are the bridge between complex railway standards and top-notch technical implementation."

Expertise:

Expert in technical specifications and EULYNX standards

Michael Lüthy

Project Manager & Requirements Engineer

"Successful development of safe and interoperable railway systems requires clear specifications, structured project management, and a deep understanding of EULYNX standards."

Expertise:

Certified project manager and requirements engineer, expert in EULYNX standards, with extensive experience in complex development projects in the railway sector.

Ury Ryf

RAMS Expert

"As an enthusiastic train traveler, I observe that the timely preparation of plans and their consistent adherence facilitates accountability."

Expertise:

Subject matter expert in EN 50126, EN 50129, EN 50128, EN 50716, EN 50159, EN 61508, RAM and safety analyses.

Matthias Witschi

Project Manager

"Successful technology projects do not arise by chance, but through structure, experience, and collaboration."

Expertise:

IPMA certified project manager with a technical background and many years of experience in complex projects. Various further training in the area of functional safety, project management, and leadership.