Wärtsilä is a world leader in marine technology and leading the industry's transformation towards a decarbonised and sustainable future. With the world’s widest portfolio and service network, we – Wärtsilians - deliver efficient, safe and sustainable integrated products and solutions to enhance the business of our customers. The opportunities presented through digitalisation and new technologies are offering a new era of shipping. Did you know that shipping is the world’s most efficient mode of transportation and that 88% of the world's trade is carried by sea?

We want to change the course towards an interconnected and cleaner maritime future and 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. Are you ready to jump onboard?

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. We are committed to driving sustainability through cutting-edge technology and services that help our customers improve both environmental and economic performance.

Wärtsilä Marine offers a comprehensive portfolio including engines, propulsion systems, hybrid technologies, exhaust treatment, shaft line solutions, digital technologies, and integrated powertrain systems. Our solutions are designed to deliver efficiency, reliability, safety, and environmental performance. We also support our customers through performance-based agreements, lifecycle upgrades, and decarbonisation services.

We are seeking a Junior Data Scientist to join our Strategy team. In this role, you will play a key part in enabling data-led decision making across Wärtsilä Marine by transforming diverse datasets into actionable insights. Your work will support strategic analysis, business planning, and innovation across a wide range of domains—from market intelligence and operational performance to customer behaviour and emerging trends.

Location of the position is preferably Helsinki, Vaasa, Turku (FI) or Trieste (IT). This position is temporary with a possibility for a permanent contract. The position holder reports directly to the Vice President, Strategy.

Key Responsibilities:

• Collaborate with internal and external stakeholders, including software developers, to design and implement data-driven strategies
• Partner with domain experts to identify opportunities for value creation through data insights
• Analyse large datasets to uncover trends, patterns, and opportunities
• Rapidly prototype dashboards, visualizations, and performance metrics to support strategic decisions
• Conduct descriptive analytics and build predictive models to forecast outcomes and support business planning
• Oversee the deployment, monitoring, and maintenance of predictive models on Wärtsilä platforms
• Contribute to the development of advanced business intelligence tools using both structured and unstructured data
• Support top management with ad-hoc and recurring data analysis

Required Qualifications:

• Degree in Computer Science, Mathematics, Software Engineering, or a related field
• Proven experience in data science, including statistical modelling, data engineering, and visualization
• Proficiency in Python
• Proficiency in Microsoft Power BI is a plus
• Solid understanding of statistics and data analysis techniques
• Experience with SQL and writing complex queries is a plus
• Knowledge of the maritime industry is highly desirable

Ideal Candidate Traits:

• Strong collaborator who values teamwork and open communication
• High integrity and a growth mindset—open to feedback and continuous learning
• Business-oriented thinker with a focus on delivering measurable value
• Results-driven with strong planning and problem-solving skills
• Takes ownership and adapts quickly when performance expectations shift

Why you and us?  

We at Wärtsilä believe in empowerment, ownership and taking responsibility of our work. We support each other’s growth, and co-creation is the true basis of our innovation. We have courage to see opportunities and take initiative.

We are authentic and honest, and we strongly believe in that by being your own true self you can accomplish so much more. 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?

We have an amazing team, and we are excited about our work and the impact it has on building sustainable societies. We are looking to find a colleague with this shared passion for smart technologies and a sustainable future.

Contact & next steps 

We hope to hear from you soon by submitting your application through our careers portal. We aim to keep you updated on the process throughout.

For further questions, please reach out to Tiia Rantonen, Talent Acquisition Partner through tiia.rantonen@wartsila.com with any questions related to this position (only for questions from direct job applicants, applications through email will not be recorded or responded to).

Welcome to join us in shaping the decarbonisation of marine and energy!

Last application date: 07/09/2025 

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 where applicable. When a person is located outside of Finland, the country legislation is followed.

Please note that according to Wärtsilä policy, voluntary consent for a security check may be required from candidates being considered for this position, depending on the applicable country.

This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 18,300 professionals, in more than 230 locations in 77 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com. 

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