Senior Data Engineer

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Job Description

We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?

Wärtsilä Energy is seeking a seasoned Senior Data Engineer to pioneer our data architecture and infrastructure, steering data governance and engaging significantly in constructing data-centric products. This pivotal role is tailor-made for a data maestro adept in SQL, Python, boasting solid software development acumen, and capable of metamorphosing raw data into strategic assets.

This permanent position will be located in our Wärtsilä offices in Helsinki or Vaasa, Finland, with a hybrid remote-work possibility.

Come join our team and help us leverage data as a driver for actionable insights and strategic decision-making. At Wärtsilä Energy, you will have the opportunity to work in a stimulating and collaborative environment crucial to our data evolution.

Key Responsibilities as a Senior Data Engineer:

  • Lead the Wärtsilä Energy Business Data Product portfolio - Data products are serving the outcome-based services, power plant new build and energy storage business goals and will be used by Autonomous plant, Energy system management and optimisation
  • With the Wärtsilä Data community, build a new data-based system - be one of the leaders of the change
  • Architect, design, and implement robust data pipelines, ensuring accuracy and performance to funnel data efficiently across systems
  • Spearheaded the establishment and refinement of our data governance model to ensure data throughout the organisation is accurate, available, and secure
  • Play a pivotal role in building and enhancing data products, collaborating closely with cross-functional teams to ensure business objectives are met
  • Dive into data engineering tasks, optimising data structures, improving data quality, and extracting actionable insights to propel our business forward
  • Over the long term, transition into machine learning projects, employing your expertise to augment our data science efforts
  • Lead the design and implementation of scalable data models, enforcing data logic and ensuring the system's integrity
  • Collaborate with stakeholders to understand data needs, delivering high-quality data solutions while fostering a data-driven culture within the organisation
  • Tight collaboration with Wärtsilä IM, who is providing the data infrastructure. Your role is to define what are the Energy Business unit needs for the data


  • Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field
  • 5+ years of experience in data engineering or related roles with a track record of manipulating, processing, and extracting value from large datasets
  • Solid experience and knowledge of database technologies, especially SQL
  • Proficiency in Python and software development best practices
  • Strong experience in architecting and implementing data solutions, with a knack for crafting scalable data models and enforcing data logic
  • Familiarity with machine learning frameworks and a willingness to delve deeper into ML projects
  • Demonstrated experience in defining and driving data governance initiatives
  • Exceptional communication skills, with the ability to translate complex technical concepts into understandable terms to varied audiences
  • A proactive problem-solver and team player eager to drive change and foster innovation in our data landscape

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:   

Please submit your application through our Careers portal before the application deadline on the 24th of January 2024. Applications through email will not be considered. After submitting your application you’ll receive a confirmation email. We try our best to get back to everyone within 2-3 weeks after the application deadline.


In case of any questions, reach out to:

Vesa-Pekka Grönfors,

Director, Data & Digitalization,

Last application date: 24/01/2024

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 17,000 professionals, in more than 200 locations in 68 countries, shape the decarbonisation transformation of our industries across the globe. Read more on

Company Info.


Wärtsilä is a Finnish multinational company that provides technology and solutions for the marine and energy markets. Wärtsilä operates in over 200 locations in more than 80 countries around the world. The company provides a range of products and services, including engines, propulsion systems, energy storage systems, automation and control systems, and various other technologies and solutions for the marine and energy industries.

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    Helsinki, Finland
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