Summer power

Summer Power Finland 

Summer Power is Wärtsilä`s official trainee program for students in Finland. Our Summer Power campaign offers over 500 summer trainee positions in Finland with remote possibilities inside the country as well. These positions are mainly located in teams that work in Vaasa but there are opportunities in Turku and Helsinki as well. 

We are looking for innovative, curious and solution focused students that share our ambitions towards decarbonisation and want to support us in achieving our purpose of enabling sustainable societies through innovation in technology and services.

In return, we offer interesting tasks with extensive learning opportunities and a good variety of ways to take part in the company culture through feedback and personal input. We value development oriented people who enjoy having independent responsibilities as well as working in teams towards shared goals. Our people are experts in their fields, but also just truly great to work with, so you can always ask for help and guidance, no matter your tasks. We are also flexible and will continue to offer remote work opportunities to our people during the summer while organizing shared activities among trainees online as well as in person. 

Application categories (you can apply to one or more):


In Manufacturing & Assembly the available trainee positions are mostly in the Wärtsilä Delivery Center, now moving to our Smart Technology Hub facilities in Vaskiluoto Vaasa. Available tasks can be found for example in engine laboratories, test run, manufacturing , assembly and machining lines. A great place to start your Wärtsila career, getting to know modern manufacturing and our products. 

In Engineering & Technology  the available positions offer versatile engineering and technology related tasks for example in Project Management, Innovation, Technical Documentation, Engine Labs, Automation, Construction and Commissioning, Sustainable Fuels, and Testing and Validation. Our R&D trainee roles are also covered by this application category.  

In Financial Services the available positions are mainly in Wärtsilä Shared Service functions, such as Accounts Payable, Invoicing, Master Data and Travel Expenses. But other possibilities include for example positions in Finance & Control, Trade Finance and Invoicing.

In Information Management & Cyber Security the available positions are mainly in our IM organisation or in Information Security. We also offer other IT related positions, such as in Software Development or Operational Development teams located within other business functions.

In Marketing & Communications the available positions are either in our local communication team, in Branding or in our business driven teams within  Marine or Energy Business in Finland. The tasks are all mainly related to content creation, documentation and stakeholder communication.


In Sales, Purchasing & Supply Chain the positions offer versatile tasks related to sales and purchasing processes with stakeholder cooperation, material management and sourcing. Other available opportunities are for example in Supply Chain Management operations.  Tasks are assigned based on the team but may include areas like reporting, sales support, handling quotations and orders, processing claims and developing processes. When applying select which area you are most interested in. 

In Quality, our newest category, the tasks are related to different areas of quality, such as customer, process or product quality operations and development. The tasks in this category may include things like data analysis with suppliers, project quality planning, claim management, warranty handling, documentation or other similar work. 


In Business Administration, Development & Design the available positions are general business related commercial tasks or non-technical Development and Design related opportunities. These can be for example Business Administration, Project Management, Service Design, Human Resources or Coordinator roles.


In Legal the available trainee positions are within either our Legal teams in Energy Business or Marine Business , or in other departments where support is needed in legal processes and where a legal background is seen as a benefit. Tasks in all mostly focus on international transactions and contract law. Our legal teams are specifically looking for students currently pursuing a Masters of Laws degree though some support functions may also consider other relevant fields of study. 



If you have any questions. Please check out our Q&A first. In other matters, contact 

Please note that the summer job positions are for students only and there is no relocation costs and/or immigration support available for these positions

The salary for all summer trainee positions is defined based on our internal salary chart, updated each year, where the total of the salary is based on the level of the current degree and the advancement of those studies with some increase possibilities based on relevant experience.



0K0A7808-Foto Christoffer Björklund


Wärtsilä awarded for improving the summer employment of foreign degree students in 2021

Wärtsilä trainee Lukumanu Iddrisu selected as the summer trainee of the year in Finland. 

Wärtsilä was selected for an honorary reward for improving summer employment of foreign degree students in the national Responsible Summer Job campaign organised by Oikotie.

"We are happy to have been able to support the employment of many international talents during their studies, and it has been great to see many of them find a place in the company after they graduate. There are people from 139 nationalities working in the company globally, so English as a working language is our advantage. Retaining talent and helping foreign degree students to understand the opportunities we have in Finland is beneficial for everyone," says Tiia-Maria Kinnula from local HR in Finland.

This is a topic that is important to Lukumanu, the winner of the "Summer trainee of the Year 2021" tittle, also awarded in the same campaign with nominees from different organisations in Finland.  He was a summer trainee at Wärtsilä and is now continuing his career within the local HR in Finland. "This is very close to my heart because I struggled as an international student to get where I am today. A lot of international students are facing these problems where they have the talent, knowledge and skills, but do not get the opportunity to exhibit them," he explains.

"I want to thank my line manager for giving me the opportunity to work for Wärtsilä, and for giving me the opportunity to go beyond my routine tasks. I also want to thank my Wärtsilä colleagues and mentors who have guided me on how to succeed in Wärtsilä." He continues. 

Read more about the awards here (in Finnish).




Summer Power Virtual - virtual activities for trainees

In the past years we have all faced a new normal that for most Wärtsilians meant working remotely and not being around colleagues every day. Though we have since been able to also visit the office, enabling new ways to stay connected are still needed. 

It is vital that our newest Wärtsilians, some joining us for the first time in the summer, feel welcome, have a way to connect with people and to see how much we appreciate their work. That is why in 2020 we created Summer Power Virtual - a program consisting of campaigns and events launched by the local HR to support the professional and personal interests of our trainees throughout the summer. The initiative also received the award for the “most innovative summer job practice” through Oikotie`s Responsible Summer Job (Vastuullinen Kesäduuni) campaign (in 2020) and has been continued since. 

What is it exactly?

The Summer Power Virtual consists of different initiatives and events aimed directly for the benefit of our trainees. Some of the initiatives are pre-planned but most are decided based on requests from the trainees themselves. This all includes:

  • A community for all the Summer Trainees in Yammer
  • Up to 7 Summer Power Virtual events (in person when possible)
  • A campaign for our managers to thank their trainees 

So, If you join Wärtsilä next summer – be sure to take part in Summer Power Virtual as well!




We are also a part of the Responsible Summer Job 2022 campaign, which means that we are committed to offering high quality summer jobs.

Vastuullinen kesäduuni
Vastuullinen kesäduuni