Frauenfeld, CH

Function:  Research & Development
Job Category:  Research & Development

Performance Engineer / Senior Performance Engineer - Future Fuels

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. Did you know that shipping is the world’s most efficient mode of transportation and that approximately 90% of world trade is carried by sea?

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. Are you ready to jump onboard?


We are eagerly seeking for a devoted Performance Engineer / Senior Performance Engineer – Future Fuels. If you are someone who loves crafting efficient combustion concepts and refining the performance of 2-stroke engines to accommodate future fuels, then we are looking for you. This position is ideally based in the picturesque locale of Frauenfeld, Switzerland. 


Your role and responsibilities 


In the exciting role of Performance Engineer / Senior Performance Engineer your work will focus on:

  • Crafting innovative combustion concepts and enhancing the performance of 2-stroke engines to run on future fuels.
  • Planning, coordinating and executing performance tests on laboratory (research) engines, licensee (shipyards) engines, and on engines in service (on ships).
  • Undertaking engine performance and emission measurements, developing engine tuning strategies, utilising data acquisition systems and analysers, and performing simulations like GT-Power, where applicable.
  • Collaborating with the CFD team, as well as the Technology & Engineering teams
  • Lending support to other business units and customers on matters related to engine performance.


Requirements for above role

  • Hold a MSc or PhD in Engineering or an equivalent preferably in Mechanical engineering or similar discipline.
  • Possesses a sound understanding of internal combustion engines (2-stroke preferred).
  • Have strong experience with Combustion systems, Engine Performance and Emissions of 2-stroke and / or 4-stroke engines.
  • Demonstrate excellent understanding of Thermodynamics and Fluid mechanics.
  • Prior experience in engine testing, measurements and engine tuning is highly beneficial.
  • Experience in using Simulation tools is desirable.


As an ideal candidate, you might also have… 

  • A team player who is equally proficient at working independently.
  • A mindset oriented towards development with a proactive positive attitude.
  • Accountability along with a customer-oriented approach.
  • Comfortable working in a multicultural environment.
  • Fluency in English language, both verbal and written.


We hope to meet a passionate individual who is excited to work with us in pioneering future fuel technologies!


Why you and us?  

You are valuated – as your true self. At Wärtsilä we value diversity and are committed to supporting an 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 to us. Every day, we put our hearts and minds into enabling sustainable societies through innovation in technology and services into reality.  



Contact & next steps 

Submit your application before the deadline through our Careers portal. Applications through email will not be considered. After submitting your application you’ll receive a confirmation email. We try our best to get back to everyone within 2-3 weeks after the application deadline.  




Last application date: 30/09/2023  


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. 


This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 17,000 professionals, in more than 200 locations in 68 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com