Vaasa, FI

Function:  Research & Development
Job Category:  Research & Development

Performance Expert

Wärtsilä is leading the maritime industry’s transformation towards a decarbonised and sustainable future. We at Wärtsilä Marine Power are proud to offer our customers the world’s widest network of maritime expertise and the full portfolio from engines to lifecycle solutions. 

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?


Wärtsilä R&D and Engineering is looking for Performance Expert or Senior Performance Expert.


Engine performance development is an activity within R&D and Engineering, System Integration and Performance. The task of a performance expert is to develop outstanding performance (turbocharging, emissions, power output, fuel consumption, etc.) for our engines operating on traditional and sustainable fuels together with engine design, engine testing and product engineering. 
The title of the employee depends on the experience level.


Location: The position is in Vaasa, Finland.


You would be joining one of the two teams of experts in Vaasa. Currently the engine performance team consists of 23 persons located in Vaasa and Trieste.


Required skills:

  • Theoretical skills on one or more of the following areas: engine performance, thermodynamics, turbocharging, exhaust gas emissions of engines, fluid dynamics, combustion chemistry, engine performance controls
  • Independent personality and ability to perform accurate, analytical, time-bound, and systematic work
  • Good written and oral English
  • Good team working, communication, and reporting skills
  • Good skills in MS Excel



  • Technical education, MSc or BSc



  • Previous experience with research or development activities, product engineering, diesel/gas engines, engine testing, engine performance controls or equivalent is preferred and seen as merit.
  • Experience with GT-Power simulation software is seen as a merit


Main responsibilities – depending on your skillset and experience you will be working on some of the following topics:

  • Development of engine performance concepts & performance technologies including the new aspects rising from the sustainable fuels (such as ammonia, hydrogen, and methanol)
  • Engine performance testing (e.g., combustion system optimization tests, turbocharger matching tests), including test planning, data analysis, and reporting
  • Engine performance control development & testing
  • Engine simulations with GT-Power software
  • Engine performance support for various internal teams such as testing & validation teams, engine component expert teams, engine design teams, production test run, and technical services.


Please note we are interviewing and finalizing the recruitment with a successfull candidate already during application period.


Contact persons for more information:

Arto Järvi, General Manager, Engine Performance


Mobile: +358 40 514 6646


Hannu Aatola, Manager, Engine Performance


Mobile: +358 44 571 0174


Last application date: 01/10/2023 


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