Chemist (Senior Expert)

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 and next steps

Please submit your application before the application deadline 30th 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 olai.lagus@wartsila.com