Project Engineer, Process

Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our partners to accelerate their decarbonisation journeys through our market-leading technologies and power system modelling expertise. These cover decarbonisation services, future-fuel enabled balancing power plants, hybrid solutions, energy storage and optimisation technology, including the GEMS Digital Energy Platform.

Did you know Wärtsilä has delivered 79 GW of power plant capacity and more than 130 energy storage installations in 180 countries around the world?

In this fast changing world of energy, we 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. Want to join the ride?

We are always on the lookout for a talent with a growth mindset – are you the one?  
  
We are looking for a Project Engineer, Process / Senior Project Engineer, Process with a main responsibility in providing process design for engine power plant projects. The location for this position is Vaasa, Finland. 
  
Your role and responsibilities  
 
As a Project Engineer, Process / Senior Project Engineer, Process your work will include:

• Engineer process flow diagrams, P&IDs and device lists
• Perform process calculations and simulations needed for the process design
• Make process descriptions for the processes
• Co-ordinate the process design with core project team, internal experts, design partner and sub-suppliers in own projects
• Support the project teams with project specific design packages and other related tasks
• Participate in development and sales project with different process design related tasks

The tasks can also be adjusted based on your individual skills and interests. You’ll be working as a part of multicultural and open-minded Process Engineering & Safety team with diverse expertise.
 
Requirements for the position: 

• B.Sc. or M.Sc. in Process Engineering, Chemical Engineering, Energy Engineering or similar 
• Interest in working in an international team developing oneself and others
• For the Senior Project Engineer position, we require some years of work experience
• For the Project Engineer position, we encourage also recent graduates to apply

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

• Being self-going and motivated to learn and grow professionally
• Good communication, negotiation and team working skills
• Ability to understand and work with diverse cultures
• Good English skills. Ability to communicate orally and in writing with different stakeholders. 
• Capability to efficiently produce technical documents in English.
   

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 of 11.01.2026 through our Careers portal. Applications through email will not be considered. After submitting your application, you will receive a confirmation email. We will start the interview process already during the application process, so please submit your application as soon as possible.

 
In case of any questions regarding the position, reach out to: 

Joakim Mattbäck
Manager, Technical expertise, Mechanical and Process
Wärtsilä Energy Business
Engine Power Plants
Process Engineering & Safety
joakim.mattback@wartsila.com 

Last application date: 11/01/2026 

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. All new Wärtsilä employees in Finland will attend occupational health checks, including drug tests/screenings where applicable. When a person is located outside of Finland, the country legislation is followed.

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.