Software System Architect

Wärtsilä is a world leader in marine technology and leading the industry's transformation towards a decarbonised and sustainable future. With the world’s widest portfolio and service network, we – Wärtsilians - deliver efficient, safe and sustainable integrated products and solutions to enhance the business of our customers. The opportunities presented through digitalisation and new technologies are offering a new era of shipping. We want to change the course towards an interconnected and cleaner maritime future and are constantly on the lookout for future-oriented talent to join our team and to work towards enabling sustainable societies through innovation in technology and services - together.

Business Unit Parts and Field Service is a global organisation with harmonised ways of working and tools to deliver the best possible services for our customers. In our global team we value, respect, and embrace different opinions and diversity. Safety, environment, and wellbeing are our foundation, and we never compromise them.

We are looking for a Software Systems Architect to join our Technology and Engineering Team in Wärtsilä Switzerland located in Frauenfeld, Switzerland.

Your role and responsibilities 

As Software Systems Architect your role will focus on, but is not limited to these responsibilities:

• Support customer agreements providing necessary information to internal and external customers.

• Maintain relationships with cooperation partners.

• Perform product improvements for non-portfolio products.

• Visit sites when deeper product, system and/or performance analysis is needed.

• Review of findings within the expert's poll.

• Prepare instructions and / or carry out necessary measurements and analysis on engines in operation as well as on shop test or sea trial.

• Implemented different sensor integrations, designed control systems, and worked on product development using NI LabVIEW and NI hardware.

• Model based design for Marine Diesel and Gas Engine Control Applications.

• Requirement elicitation from customer concept documents, drawings, etc.

• Worked on model-based development of fuel injection applications and testing.

• Functionality development for LNG Injection with multiple concepts of Gasification.

The below will enable you to shine in your role:

• BSc or higher degree in Electrical or Marine Engineering.

• Good knowledge of the functionalities of two-stroke Wartsila engines for marine applications

• Knowledge related to the implementation of systems to regulate engine speed for two-stroke marine applications

• Knowledge related to the implementation and architecture of alternative fuel control systems for marine engines.

• Proven expertise in Model-in-Loop (MIL) simulation and Hardware-in-Loop (HIL) simulation (please expressly mention your knowledge level of these tools in your application).

• Proficiency in creating Unitool packages and application interface protocols.

• Strong knowledge of Simulink, LabVIEW and MATLAB (specify your knowledge level in your application).

• Excellent technical communication skills (e.g. writing reports).

• Strong self-organization abilities for managing both internal and external activities.

• Willingness to travel and work abroad for short periods (please specify it in your cv).

• At least 5 years of proven experience working in a similar role and environment.

• Proficient English language knowledge (both verbal and written communication are mandatory in Wartsila).BSc or higher degree in Electrical or Marine Engineering.

Why you and us?

You are valued – as your true self. At Wärtsilä YOU matter. We value diversity and are committed in supporting inclusive work community.

Your growth is supported. We believe in continuous learning & teamwork. Wärtsilian community has your back when it comes to development opportunities – so you can develop beyond your potential.

You get to make a difference. Innovation and sustainability are important for us. Every day, we - Wärtsilians - put our hearts and minds into enabling sustainable societies through innovation in technology and services into reality.

Contact & next steps

Does this sound like the job for you? If yes, submit your application before the deadline through our Careers portal. Applications submitted via email or through recruitment agencies will not be considered.

Our recruiting tool recognizes the time zone where the job ad has been published and closes the application period according to the same time zone. We will be conducting interviews

with qualified candidates throughout the process and aim to keep you informed along the way.

Are you still wondering if you should apply and would like to get something clarified? Please reach out to Jason Crouch, Global Talent Segment Talent Acquisition Partner, via email at Jason.crouch@wartsila.com with any questions related to this position (only for questions from direct job applicants, applications through email will not be recorded or responded to).

Last application date: 31/08/2025 

At Wärtsilä we value, respect and embrace all our differences, and are committed to diversity, inclusion and equal employment opportunities; everyone can be their true self and succeed based on their job-relevant merits and abilities. 

Please note that according to Wärtsilä policy, voluntary consent for a security check may be required from candidates being considered for this position, depending on the applicable country.

This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 18,300 professionals, in more than 230 locations in 77 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com.

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