Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our partners to accelerate their decarbonisation journeys through our market-leading technologies and power system modelling expertise. These cover decarbonisation services, future-fuel enabled balancing power plants, hybrid solutions, energy storage and optimisation technology, including the GEMS Digital Energy Platform.

Did you know Wärtsilä has delivered 79 GW of power plant capacity and more than 130 energy storage installations in 180 countries around the world?

In this fast changing world of energy, we are constantly on the lookout for future-oriented talent to join our team and to work towards enabling sustainable societies through innovation in technology and services - together. Want to join the ride?

We are looking for a (Senior) Expert, Fuel and Lube oil systems to join our dynamic Balance of Plant team consisting of ten process system experts, developing future engine power plants. The preferred location for the position is in Vaasa, Finland, but also Helsinki, Finland is possible location. We offer a possibility to hybrid work. 

Your role and responsibilities 

In this position, your work will include product management, cooperation with suppliers and system integration expertise. On a typical day, you might start with supporting a project team with expertise related to fuel oil and lube oil system and end the day with developing solutions for our latest power plant concept. You will not be working alone, even though the work requires a high level of independency and sharing expertise knowledge, as you will have the support from the own team and the product team.

For us to be the best match, we expect you to have understanding in process systems related to fuel and lube oil systems and experience from working with product management. As an ideal candidate, you have gained experience from fuel and lube oil system related to power plants or engines and have a degree in process or chemical engineering. For you to succeed in the position, we hope you to have a systematic way of working and is open for a dynamic work environment.

As (Senior) Expert, Fuel and Lube oil systems, your work will focus on these responsibilities:

• set the fuel and lube oil systems requirements and configuration rules to be used in design, equipment specifications and sales tools. Maintain the base process system for both fuel and lube oil system.
• development new fuel and lube oil system for power plant concepts, including new sustainable fuels
• act as a Product and Development manager for fuel oil and lube oil products. Responsible for development, supplier contacts and portfolio maintenance, together with the Product team.
• develop safe design by participating in Safety studies (HAZID, HAZOP and LOPA) as a fuel and lube oil system expert and cooperate in safety concept developments.
• Support Sales, Project and Lifecycle Teams related to fuel and lube oil systems and products.

You will shine in this role, when:

• you hold a MSc or BSc degree in Process, Chemical or other suitable field of Engineering.
• you have experience from process system functionality, instrumentation and control.
• you have knowledge of fuel oil system, preferably related to power plant facilities. Experience related to sustainable fuels is seen favourable.
• you have experience of lubricating oil system,  
• you have good understanding of product development and product portfolio maintenance.
• your way of working is systematic, structured and with a good sense of details, but you still have a flexible mind-set and can adjust to a dynamic work environment.
• you have good communication skills, as we are working in an international business environment, we require good communication skills in English, both written and spoken. You also have good team working and social skills.

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 

We hope to hear from you soon by submitting your application through our careers portal. We aim to keep you updated on the process throughout.

For further questions, please reach out to Jan Krooks, General Manager, Balance of Plant, through jan.krooks@wartsila.com or +358 (0)40 5651826 with any questions related to this position (only for questions from direct job applicants, applications through email will not be recorded or responded to).  

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

Last application date: 15/09/2025 

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.

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.

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. 
 

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