Share this Job

Helsinki, FI

Function:  Finance & Control
Job Category:  Other

Suomen Mentorit - Data Engineer Trainee


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. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834. Together, we can create new business opportunities and more sustainable future that we can all be proud of.


We want to transition the world towards a cleaner 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?


We are looking for a recent graduate (has graduated within the last 12 months) or a student close to finalising their studies to join the Data Platform service team in Wärtsilä IM Data and Analytics as a trainee.


Our service builds data pipelines from various sources such as Business Support systems, APIs and data lakes to common data platform on top of AWS, load the data into either data lake or data warehouse, transforms the data into right format for delivery via SQL or APIs interfaces. We help citizen developer community to contribute and develop their own solutions on top of the platform. Our aim is to be “Your trusted partner with data engineering” providing high-quality solutions for business stakeholder by utilizing DevOps practices and Agile way of working.


This position is located in Helsinki, Finland. The position is temporary trainee position for 6 months. 



  • Developing and deploying data transformations using in database procedures
  • Developing and deploying data extractions using AWS services, python and docker containers
  • Developing and deploying data loads using AWS data lake and serverless tooling
  • Participate support and maintenance for the platform
  • Support for developer community and end users
  • Requirements specifications together with the team and business stakeholders
  • Manage the documentation in own responsibility area



  • Background in data engineering or software development
  • Advanced SQL skills including procedures, analytical queries and query performance optimization
  • Python (Pandas and data processing), docker containers
  • Git and CI/CD pipelines
  • Amazon Web Services (Lambda, s3, Redshift, CloudWatch, IAM, DynamoDB, API gateway, Glue, Athena, Serverless framework, Terraform)


  • Customer orientation
  • Fluent in marketing and selling ideas and solutions to the stakeholders
  • Very good in documentation and presentation skills
  • Good collaboration and change management skills
  • Proactive, development-minded, independent and goal-focused attitude to work
  • Fluent written and spoken English


We offer

Possibility to take part in building state-of-the-art Data Platform using the latest technologies.

Work together with a great team of highly skilled professionals.

Work on meaningful tasks and solving real world business problems with real data.

Possibility to get a thesis topic.


Please apply by 7th March 2021.


Note! The position can be filled as soon as a suitable candidate is found, which is why we are processing applicants during the application period as well.


Contact person for more information:
Tuomas Syväjärvi, Service Manager, Data Platform

Mobile phone: +358 400 595351

E-mail: tuomas.syvajarvi@wartsila.com


This position is part of campaign Tehdään Töitä by Suomen Mentorit (https://suomenmentorit.fi/tehdaan-toita).


Last application date: 07/03/2021

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