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Vaasa, FI Helsinki, FI

Function:  Engineering
Job Category:  Engineering

Design Engineer, Electrical - Energy Storage & Optimisation

Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians - put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies with smart technology, and our Smart Marine and Energy visions into reality.

We want to transition the world towards a cleaner future. By pushing the boundaries of engineering and technology, we can make it work. Together, we can create new business opportunities and more sustainable future that we can all be proud of.  Want to join the ride?


Wartsila Energy Storage & Optimisation (ES&O) is the leading global energy storage provider. Our mission is to deliver integrated energy solutions that build a resilient, intelligent, and flexible energy infrastructure - unlocking the way to an optimized renewable future. By integrating renewables, energy management technology and storage with traditional energy resources, we reinvent clean energy production from the largest and most complex grids to the most remote and essential microgrids. We play a key role in Wartsila’s vision towards a 100% renewable energy future through flexibility, reliability, and integration and a more sustainable world for us all.


We are looking for a Design Engineer (DE) to collaborate with professionals within the product, proposal, and delivery teams. The ideal candidate will be a self-starter that can work both independently and as part of an interdisciplinary team. The candidate should thrive in a fast paced, constantly changing environment while the industry and company go through substantial growth. 


Our business is growing, we offer a challenging job with a lot of possibilities for personal and knowledge growth in a great Team.
The position of Design Engineer (DE) will be part of the growing global Proposal Development and Project Delivery Teams, reporting to the Manager, Project Delivery. 



The location for the position is in Finland offices in Vaasa, Helsinki or Turku but other European Office locations can be considered.


Possibility to work partially or fully remote depending on country & location.



  • Your work will be related to project proposal and delivery as well as product development processes within design/layout scope.
  • Typical deliverables will be, Site and system layouts and general arrangement drawings, single line diagram and circuit diagram drawings, cable drawings, assembly and isometric drawings, 2D and 3D modelling, and others as needed.


Minimum Educational Requirements and Experience:

  • BS degree in Electrical Engineering or Power Engineering, or related field
  • Applicant should have a solid understanding of fundamental electrical engineering and be familiar with relevant codes and standards (CE, EN, IEC, IEEE, NEC, NFPA, UL, IBC, IFC etc.) as applicable to the local regions.
  • Experience in energy storage and renewable energy markets, power systems engineering, or similar projects and products (such as bi-directional inverters, dc/dc converter, various battery chemistries, solar, wind turbines, flywheels, etc.)
  • Capable of reading and drafting electrical designs such as electrical schematics, one-line diagrams, and application/logic functional block diagrams in AutoCAD Electrical
  • Familiar with 3D modelling in a similar integrated tool (equipment, structural etc.)
  • Experience with utility-scale renewables system design
  • Experience developing low, medium and high voltage 1-line and 3-line diagrams
  • Familiarity of ANSI/IEEE drawing standard symbols, abbreviations and device numbers
  • Knowledge of NEC conductor ampacity design requirements
  • Knowledge of NEC, NESC, and NFPA 855 equipment spacing and clearance requirements


In addition, the below will enable you to shine in this role:

  • Ability to participate and embrace an agile technical and dynamic global business environment
  • Flexibility to work with a global team located across different time zones
  • Willingness to take ownership and produce results
  • Open minded and willing to learn of new technical approach and new ways of working,
  • Open to share own knowledge and experience
  • Communicative
  • Team working oriented
  • Proactive in your daily work
  • Tasks oriented and timely for delivery
  • Fluent in English within technical matters
  • Willing to travel occasionally


We Offer You

  • Competitive salary with significant upside in your career path as we are growing very fast.
  • Dynamic, technology-centric working environment within a very focused team.
  • Opportunities to shape renewable energy industries in 70+ countries as part of a $12 billion global company.


Please apply by 30th of January 2022.


For more information, please contact:
Thomas Pellas (thomas.pellas@wartsila.com)
Manager Project Delivery Team, EU & Africa
Energy Storage & Optimisation
Wärtsilä Finland Oy – Energy Solutions

Last application date: 30/01/2022

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 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.