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Vaasa, FI Turku, FI

Function:  Project Management
Job Category:  Project Management

Commissioning Engineer, Mechanical

Wärtsilä is leading the transition towards a 100% renewable energy future. We Wärtsilians help our customers unlock the value of energy transition by optimizing their energy systems and future-proofing their assets. Did you know Wärtsilä has delivered 73 GW of power plant capacity in 180 countries around the world, including 80 energy storage systems?

In this era of innovation and 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 with smart technology - together. Want to join the ride?


In this position your main role is to perform commissioning, performance and handing over activities in power plant projects. You will work mostly at site assignments abroad (approximately 250-300 days abroad per year), and the home office location is either in Turku or Vaasa, Finland.


We offer you an interesting position in challenging and rewarding projects globally. In this position you have a possibility to work in a successful team with people from many cultural backgrounds.



  • Perform start-up and tests of equipment within the scope of the contract
  • Follow commissioning plan
  • Follow commissioning and performance tests procedures
  • Ensure that all test results are documented according to Wärtsilä instructions
  • Safeguard the compliance with EHS policies and minimize risks during commissioning
  • Ensure that safe commissioning practices are followed
  • Resolve and record technical problems during the commissioning
  • Participate the site commissioning meetings  
  • Ensure that safe and calibrated test equipment are used
  • Maintain good reporting practices
  • Guide operation personnel with plant design and functionalities
  • Assist the client with commissioning procedures and testing
  • Ensure safe and reliable function of the plant and equipment
  • Ensure that as-built drawings are completed and communicated
  • Maintain punch list
  • Ensure that all required documents are submitted and signed by the client for taking over of the plant


  • M.Sc. of B.Sc. in Mechanical Engineering 
  • Working experience in similar tasks preferred 
  • Working experience in Power Plants or Ships Engine room is an advantage
  • Good communication, negotiation and stakeholder management skills
  • Willingness to learn and adapt new technologies 
  • Ability to adjust to a wide range of conditions and cultural environments 
  • Project Management knowledge is an advantage 
  • Good command of English, both oral and written 
  • Other languages are seen as an advantage 


Contact & next steps:
Does this sound like the job for you?
If yes, we hope to hear from you before the application deadline 12th December 2021, by submitting your application through our career’s portal. 


Please note that relocation costs and/or immigration support in moving to Finland is not available for this position.


Are you still wondering if you should apply and would like to get something clarified? Please reach out to:
Jukka Ala-Aho, Manager, Mechanical, Construction & Commissioning Services



Last application date: 12/12/2021

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 check, including the drug test/screening. The legislation of the country followed when person is located outside of Finland.

This is Wärtsilä

Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our customers unlock the value of the energy transition by optimising their energy systems and future-proofing their assets. Our offering comprises flexible power plants, energy management systems, and storage, as well as lifecycle services that ensure increased efficiency and guaranteed performance. Wärtsilä has delivered 73 GW of power plant capacity in 180 countries around the world. www.wartsila.com/energy


Wärtsilä is a global leader in smart technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation, total efficiency and data analytics, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2020, Wärtsilä’s net sales totalled EUR 4.6 billion with approximately 18,000 employees. The company has operations in over 200 locations in more than 70 countries around the world. Wärtsilä is listed on Nasdaq Helsinki. Find out more at www.wartsila.com.