Manufacturing Jobs in Vaasa, Finland (Now Hiring) — 15 open

We are always on the lookout for a talent with a growth mindset – are you the one?  

We are looking for a Chemist that will be titled Senior Expert / Expert, Fuels with a main responsibility in the Fuel Laboratory. The location for this position is Vaasa, Finland. 
 

Your role and responsibilities  

As a Senior Expert / Expert, Fuels you will provide expert chemical competence to support Wärtsilä's fuel related technology development, engine testing, customer projects and fuel specification work as well as support on troubleshooting challenges. The role ensures high quality laboratory analysis, development of new analytical methods and expert interpretation of results for conventional, bio based and emerging sustainable fuels. The position supports Wärtsilä's strategic targets related to decarbonisation, fuel flexibility and reliable engine operation. 

Requirements for the position:

• M.Sc. in Chemistry or related field
• Strong laboratory experience of instrumental analysis in a chemistry laboratory
• Fluent English communication skills, Swedish and/or Finnish a strong benefit
• Ability to work independently and take ownership
• Willingness to perform hands-on laboratory work when required

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

• A Team player with good collaboration skills in cross-functional teams
• See working in a Chemistry Lab as a “dream work” were to work & develop long term
• Experience with advanced analytical instruments (e.g. IC, XRF, GC, ICP-OES, FTIR, TGA/DSC)
• Strong analytical thinking and problem-solving skills
• Structured way of working and ability to interpret data, reporting and support technical decisions
• Interest in method development and continuous improvement
• Experience in fuel analysis or petrochemicals and knowledge of alternative fuels (e.g. ammonia, hydrogen, methanol) is seen as an advantage

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 9th of August 2026 through our Careers portal. Applications through email will not be considered. After submitting your application, you will receive a confirmation email.

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

Olai Lagus,

General Manager, Fuel Laboratory

+358 505675543 or [email protected]

Last application date: 24/08/2026 

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.