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 HIRING

Trainee – Service Technician Mechanical

Wärtsilä – Empowering the Energy Transition

Wärtsilä is leading the transition towards a 100% renewable energy future. As Wärtsilians, we support our customers in unlocking the full value of energy transition by optimizing energy systems and future‑proofing their assets.

In today’s fast‑evolving energy landscape, we are looking for future‑oriented talent to join us in building sustainable societies through smart technology — together.

Join our Services Delivery team and begin your career with hands‑on learning and real project exposure.

What You Will Do

• Support the plant overhaul and maintenance team
• Learn the fundamentals of engine overhaul and maintenance practices
• Gain hands-on experience under professional supervision
• Understand and apply safe working practices to ensure team safety
• Participate in daily operations such as reporting and job scheduling
• Assist in inventory and logistics coordination

What We Are Looking For

• Bachelor’s Degree or Diploma in Mechanical Engineering
• Strong academic record
• Fluent in English
• Good communication and interpersonal skills
• High level of integrity and ownership
• Self-motivated and target-oriented mindset

Why Join Wärtsilä?

• A culture built on empowerment, ownership, and accountability
• Opportunities to learn, grow, and co-create innovative solutions
• A diverse and inclusive workplace where everyone can be their true self
• A safe and supportive environment that encourages open communication
• A place where mistakes are learning opportunities

How to Apply

If you are excited to be part of a global organization driving sustainable energy solutions and believe your skills align with this role, we encourage you to apply via our careers portal.

Last application date: 19/06/2026 

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. 
 

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