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 88% of the world's 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 always on the lookout for a talent with a growth mindset – are you the one?  
  
We are looking for a Performance Engineer with a main responsibility in Research Engine Testing. The location for this position is Vaasa, Finland.
  
Your role and responsibilities:  
 
As a Performance Engineer your work will include planning, preparing, and performing research engine tests, followed by post-processing and analysis of the measurement data, including communication of the outcome. You will work primarily with a multi-cylinder research engine, as well as occasionally with other types of combustion rigs, such as rapid compression expansion machine and optical spray combustion chamber, to compliment observed experimental trends.

You’ll be working as a part of the Advanced Concepts team developing combustion systems and solutions for sustainable fuels aiming at decreasing the carbon footprint of large bore medium speed engines in the marine and power generation sectors. The work is coordinated by dedicated research and technology development projects in close collaboration with other ICE expertise areas within Engines R&D and colleagues from the laboratory.
 
Requirements for the position: 

• PhD or MSc degree in Reciprocating Internal Combustion Engines or related relevant field
• Documented experience from experimental ICE testing and performance analysis
• Experience of 0/1D simulations, RSM and DOE tools
• Good understanding of combustion, fluid dynamics and thermodynamics
• Good understanding of engine controls and turbocharging

To be able to succeed in the position we expect you to have: 

• Passion for engines, combustion, and sustainability
• As an individual, a positive mindset, innovative, being pro-active and taking responsibility
• As team player, enjoy working with constantly changing challenges outside your comfort zone to make a difference and contribute to solutions enabling the use of sustainable fuels in ICEs efficiently

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:  
 
Please submit your application before the application deadline 25 of November 2025 through our Careers portal. Applications through email will not be considered. After submitting your application, you will receive a confirmation email.
 
In case of any questions regarding the position, reach out to: 

Jari Hyvönen, 
General Manager, Advanced Concepts 
Email: jari.hyvonen@wartsila.com

Last application date: 25/11/2025 

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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