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?

We are reaching out for a skilled talent with a service mindset – are you the perfect fit? 

Wärtsilä Global Business Services (WGBS) provides reliable, scalable, and standardized services to support core business operations. WGBS partners with businesses and drive continuous improvements in end-to-end processes for enhanced effectiveness, quality, efficiency, and compliance.

WGBS Invoice to Pay team is now looking for energetic and committed students to work as On-Call Trainee (0-25h/week) to strengthen the Purchase Invoices team located in Vaasa, Finland. You will be working with Wärtsilä companies around the world and supporting with the handling of purchase invoices and other related tasks.

What do we offer?
 
•    Collaborative, supportive and innovative atmosphere
•    Possibility to co-operate with many different stakeholders globally
•    Great colleagues and a multicultural working environment
•    Possibility to learn and develop your professional skills with modern tools
•    Career progression opportunities within a global organisation

For us to be the best match, we expect you to have a good understanding of accounting and experience from working in a customer-facing role. As an ideal candidate, you have gained experience from the purchase-to-pay process and have a degree in accounting or other business-related field. For you to succeed in this position, we hope you have a mindset for continuous improvement and are open to learning new skills, such as RPA. 

What are the responsibilities?
 
•    Handling and validating incoming purchase invoices
•    Solving issues and being in contact with various Wärtsilä teams and suppliers to improve the end-to-end process
•    Act as a gatekeeper to ensure compliance
•    Choosing correct GL accounts and tax codes
•    Continuously improving the process within own responsibility area
•    Give input to robotic process automation (RPA)
•    Other tasks related to monitoring and quality control

Requirements for the position: 
 
•    Currently studying Accounting, Business Administration, Economics or similar
•    Systematic and organized way of working 
•    Self-driven and development-oriented attitude
•    Good knowledge of English with other language skills considered as a benefit (e.g. Chinese, Japanese)
•    The right to work in Finland, and live in Vaasa
 
Qualifications/to be able to succeed in the position we expect you to have: 
 
•    Positive attitude and proactive thinking 
•    Good communication skills
•    Ability to work in a multicultural environment
•    Flexibility and good team working skills 
•    Excellent customer service skills
•    Problem-solving capabilities

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:

The position will be filled as soon as we find the suitable candidate, so please submit your application before the application deadline 28.12.2025 through our Careers portal. Applications through email will not be considered. After submitting your application, you will receive a confirmation email. 

In case you have any questions, please don't hesitate to contact:
Misha Bäckman, Manager, ITP Middle East & Asia
misha.backman(at)wartsila.com

Last application date: 28/12/2025 

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. 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.