On-Call Trainee, Project Control

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 a 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?

Wärtsilä Marine is looking for an On-Call Trainee to join the Project Control & Operative Controlling team within Marine Financial Business Services (MFBS). The position is based in Vaasa, Finland. We offer a hybrid working model, with regular on-site work at the Sustainable Technology Hub in Vaasa.

As an On-call Trainee, you can work up to 25 hours per week. The selected candidate needs to be a full-time student studying for a degree in Finland.

Are you studying economics and interested in gaining practical experience in financial controlling and international project business? This is an opportunity to develop your skills and learn how project financials are managed in practice as part of an experienced Project Control team.

Your role and responsibilities

As an On-Call Trainee, Project Control, you will support Project Controllers in their daily work and assist with recurring project controlling, reporting and financial activities. You will work with real projects, financial data and reporting processes while learning about project controlling and Wärtsilä's project business.

We are looking for a motivated and curious student who enjoys working with numbers, pays attention to detail and is eager to learn. Previous work experience in project controlling or finance is not required.

Key responsibilities:

• Support Project Controllers with recurring project controlling and financial activities
• Assist with project financial reporting and follow-up
• Assist with monthly reporting and closing activities
• Prepare reports, analyses and other financial follow-up material
• Support the team in maintaining and updating project-related financial information
• Support Project Controllers with other recurring activities related to the project portfolio
• Contribute to improving and simplifying ways of working, including the use of digital tools and automation

Qualifications and skills:

• Currently studying for a B.Sc. or M.Sc. in Economics, Finance, Accounting, Business Administration or a related field
• Interest in financial controlling, project business, and working with financial data
• Good analytical skills and attention to detail
• Basic knowledge of Excel and an interest in developing your skills further
• Structured and systematic way of working
• Willingness to learn and take on different tasks
• Good collaboration and communication skills
• Ability to work both independently on assigned tasks and together with the team
• English language skills are required; Swedish and/or Finnish are considered an advantage
• Interest in modern tools such as Power BI, automation and AI is considered an advantage

Why you and us?

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

We are authentic and honest, and we strongly believe 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 for a colleague with this shared passion for smart technologies and a sustainable future.

Contact & next steps

We hope to hear from you soon and receive your application via our Careers portal. We aim to keep you updated throughout the process.

For further information regarding this position, please reach out to Emil Nyby, Manager, Project Control at emil.nyby@wartsila.com (only for questions from direct job applicants; applications sent by email will not be processed or responded to).

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

Last application date: 27/11/2026

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.

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.