Vaasa, FI

Function:  Service Delivery
Job Category:  Project Management

Commissioning Engineer, Mechanical OPEN APPLICATION


Wärtsilä is leading the transition towards a 100% renewable energy future. We Wärtsilians help our customers unlock the value of energy transition by optimising their energy systems and future-proofing their assets. Did you know Wärtsilä has delivered 74 GW of power plant capacity and more than 80 energy storage systems 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?

Wärtsilä Energy Business is looking for a skilled and enthusiastic Mechanical Commissioning Engineer.
Your main responsibility is to plan, lead, and manage the mechanical construction and commissioning works and team at the site. We find it important that you are comfortable in front of varying audiences and that you are natural when communicating with different stakeholders, both internal and external. 

The position is located in Finland (Turku, Vaasa, or Helsinki), but you will work abroad for longer periods. You will spend approximately 250-300 days abroad per year. Please note that relocation costs and/or immigration support are not available for this position.
We offer you an interesting position in challenging and rewarding projects globally. In this position, you can work in a successful team with people from many cultural backgrounds.
The role: 

  • Plan, manage and lead mechanical installation and commissioning activities at the site
  • Led mechanical team at the site

Duties and Responsibilities:




  • Plan and follow up on the progress of mechanical works at the site
  • Proactively manage the scope of work and material flow and secure needed resources
  • Manage and guide subcontractors
  • Plan and coordinate Last Planner System (LPS) activities with the subcontractors and monitor the progress accordingly
  • Facilitate Root Cause Analyses and solve constraints of mechanical works
  • Follow and give input to the project time schedule
  • Maintain good customer relations and team spirit at the site
  • Highlight the economical construction and cost-saving working procedures
  • Manage and maintain good reporting practices
  • Ensure that mechanical as-built drawings are completed and communicated
  • Safeguard compliance with HSSE policies and minimise risks in mechanical installations and commissioning

Construction, Installation  

  • Coordinate construction and installation works in cooperation with Civil and Electrical disciplines following LPS methods
  • Ensure that design and installation instructions are followed
  • Arrange inspection of received material and goods at the site
  • Review invoices from subcontractors and suppliers
  • Maintain records of change orders and claims
  • Organize and lead the mechanical weekly site meetings
  • Ensure quality control at the site
  • Advise and support the client in planning, organising and execution of tests

Testing, Commissioning 


  • Manage and plan safe inspections and test procedures
  • Instruct and advise the supervisors and subcontractor to use accepted test and inspection methods and proper test equipment
  • Ensure testing of installed equipment and document test results
  • Manage punch list
  • Ensure that all required documents are submitted and signed by the customer for taking over the plant

Why you and us:
We at Wärtsilä believe in empowerment, ownership and taking responsibility for our work. We support each other’s growth, and co-creation is the true basis of our innovation. We have the courage to see opportunities and take initiative. We are authentic and honest, and we strongly believe in a diverse and inclusive work community where everyone can be their true self. We don’t always get it right the first time, and if mistakes are made, we make sure to learn and grow from them. We want everyone to voice their opinions freely. That is why we have built an environment that empowers you and everyone around you, and where you can feel safe and cared for. Are you eager to be part of this ambition?
Contact & next steps:
Does this sound like the job for you?
If yes, we encourage you to apply by submitting your application through our career portal. 
Please note that relocation costs and/or immigration support in moving to Finland are 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: 13/09/2024 


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. The country's legislation is followed when a person is located outside of Finland.


This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 17,800 professionals, in more than 280 locations in 79 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com