On-call Trainee

Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians - put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies through innovation in technology and services into reality. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834. Together, we can create new business opportunities and more sustainable future that we can all be proud of. 

We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?

The Wärtsilä Customer Delivery - FGSS & Catalyst Project Purchasing team is seeking a highly motivated and result driven On-Call Trainee to join our team. The location for the position is Vaasa, Finland. As an On-Call Trainee, you can work up to 25 hours per week. The person who is selected for this role needs to be a full-time student studying for a degree in Finland.   

What will you be doing?

You will play a key role in supporting project purchasing and supply chain related to Catalyst delivery projects. This role is diverse with tasks ranging from purchasing, purchasing related follow up and monitoring, purchase invoice handling, project delivery creation and project consumptions. You will experience true teamwork in a thriving business. 

What can you expect from this role? 

We offer a positive work environment where you will gain broad experience within the field of supply chain management. You have the possibility to work at the office or remotely 0-25 hours per week. Starting in May 2026, you will transition to a full-time summer trainee role.

Main requirements: 

• You are currently a student at the University or University of Applied Sciences (e.g. Business Administration or Industrial Management) with a maximum of 50% of your studies completed
• Fluent English language skills, both oral and writte
• Systematic and organised way of working 
• Self-driven with a problem-solving attitude    
• Excellent team working skills
• Experience of purchasing, Incoterms and/or SAP is an advantage

Why you and us?
 
You are valuated – as your true self. At Wärtsilä YOU matter. We value diversity and are committed to supporting an inclusive work community.
Your growth is supported. We believe in continuous learning and 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 to us. Every day, we - Wärtsilians - put our hearts and minds into enabling sustainable societies through innovation in technology and services into reality.

Contact and next steps: 

Please submit your application by 8th of February 2026 through our Careers portal. Applications submitted via email will not be considered. After submitting your application, you will receive a confirmation email. 
In case you have any questions regarding this position, please do not hesitate to contact Emanuel Björk or Sari Enlund via email at emanuel.bjork@wartsila.com or sari.enlund@wartsila.com 

Last application date: 08/02/2026 

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.