Engine (Senior) Performance Expert

We are now looking for a 

Engine Performance Expert or Senior Performance Expert

to join our team working for a better future.

The position is permanent and the preferred location is in Trieste, Italy but also Vaasa, Finland is a possible location.

What you will be doing

As Engine (Senior) Performance Expert your work will focus on these responsibilities:

• 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
• Testing (and development) of engine performance control 
• 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

To be successful in this role, we expect you to have:

• Technical education, BSc or MSc
• Previous experience with research or development activities, product engineering, diesel/gas engines, engine testing, engine performance controls or equivalent is preferred and considered an advantage
• Experience with GT-Power simulation software is considered an advantage
• 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 knowledge of English
• Good team working, communication, and reporting skills
• Good skills in MS Excel

Why you and us?

We at Wärtsilä believe in empowerment, ownership and taking responsibility of our work. We support each other's growth and co-creation is the true basis of our innovation. We have courage to see opportunities and take initiative.

We are authentic and honest, and we strongly believe in that by being your own true self you can accomplish so much more. We don't always get it right the first time, and if mistakes are made, we make sure to learn and grow from them. We want everyone to voice their opinions freely. That is why we have built an environment that empowers you and everyone around you, and where you can feel safe and cared for. Are you eager to be part of this ambition?

We have an amazing team and we are excited about our work and the impact it has on building sustainable societies. We are looking to find a colleague with this shared passion for smart technologies and a sustainable future.

Contact & next steps

We hope to hear from you soon, by submitting your application through our careers portal. We aim to keep you updated on the process throughout.

For further questions related to this position please reach out to Donatella Cascia, Manager Engine Performance at or Järvi, Arto, General Manager Engine Performance at (only for questions from direct job applicants, applications through email will not be recorded or responded to).

Welcome to join us in shaping the decarbonisation of marine and energy

Last application date: 29/11/2025 

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