Data Scientist

Data Scientist
Permanent
Vilnius

Are you motivated by the challenges of data science? Can you envision yourself contributing to advancements in our digital journey? If yes, this could be the next exciting step in your career!

Create Solutions that will enable a better tomorrow

We are looking for a Data Scientist, preferably with some hands-on experience (work experience or a structured internship) in generative AI to join our growing team in the beautiful city of Vilnius (location is fixed). You’ll be working with applied AI, supporting the design, develop, and maintenance of intelligent solutions that create real-world impact for our customers and business value for COWI.

On a day-to-day basis, you will be required to:

• Assist in developing and refining data science and AI-assisted prototypes under guidance from senior colleagues.
• Prepare and explore datasets (ingestion, cleaning, feature engineering) and run baseline models to support business use cases.
• Help design small experiments, analyse results, and present concise summaries to technical and non-technical stakeholders.
• Work with the team to package notebooks, tests, and simple APIs for deployment.
• Follow agreed practices for documentation, data governance, model monitoring, and responsible AI usage.
• Proactively learn new tools and methods, seeking feedback to improve code quality, reproducibility, and impact.

Your skills. Our team. Together, we design the future

Your skills are the key to our success. Working across borders and disciplines, we share knowledge and build strong relationships with colleagues and customers. You contribute your expertise and get to learn from the best. To succeed in this position, we believe that you should be a team player with result-oriented and focus on high quality, self-motivated, open and engaged.

Furthermore, you bring:

• A Bachelor’s (or near completion of a Master’s) in Computer Science, Engineering, Information Systems, Maths, or a related field—or equivalent practical experience (e.g., internships, projects).
• Up to 1–2 years’ experience from internships, placements, or junior roles; exposure to generative AI (e.g., OpenAI/Azure OpenAI) is a plus.
• A solid grounding in machine learning and statistics; awareness of deep learning fundamentals.
• Confidence with Python and core data libraries (pandas, scikit-learn); familiarity with PyTorch or TensorFlow is beneficial.
• Good coding habits: clear notebooks/scripts, readable documentation/READMEs, use of Git, and basic testing.
• Basic SQL and data-wrangling skills; comfort working with APIs and JSON is helpful.
• Exposure to Azure; familiarity with AWS or GCP is advantageous.
• Curiosity, collaboration, and motivation to solve real problems with data.
• Clear written and verbal communication in English; able to explain results simply to different audiences.
• Nice to have: basics of Docker; awareness of orchestration (Kubernetes), workflow scheduling (Airflow), and introductory MLOps/Responsible AI practices.

A place to work and so much more

At COWI, we work together with our customers to shape a sustainable and liveable world. We do it by applying our knowledge and curiosity – and sometimes even our courage – to create the solutions the world needs today to enable a better tomorrow. We support our customers’ transition towards increased sustainability. We strive to lead by example by embedding environmental management, social responsibility and good governance into our business practices and the options we provide to our customers.

We value differences and development and cultivate an environment of belonging and having fun. Because that is what brings out the best in you, at work and at home. With offices primarily located in the Nordic region, the UK, North America and India, we are currently more than 7500 people who bring their expertise in engineering, architecture, energy and environment into play.

What we also offer:

• Private health insurance after the probation period
• Accident insurance from the first day of your employment
• Hybrid way of working
• 1 extra day off after birthday
• Other benefits, such as: new and modern office space, various COWI partners discounts and offers, social initiatives and corporate events.

Salary for this position ranges from 2700-3600EUR before taxes. We believe in your professional capability therefore the final offer will be based on your competencies and experience.

Got more questions?

If you have unanswered questions about the role or what we have to offer, please reach out to Sara Mehrabi, VP- Data and Analytics, at srme@cowi.com.

Get to know us even better at our website www.cowi.com where you can learn more about our projects, our strategy, what we want to achieve, and what life is like at COWI.

Diversity is fundamental to COWI, inclusion is key

We are committed to creating a respectful and fair work environment where all employees have a sense of belonging and equitable opportunities to thrive and grow. We ensure that our leaders are role models for inclusive leadership by cultivating a culture where diverse perspectives and thoughts are seen as strengths. And we take diversity and inclusion into account in all relevant decisions and processes and when setting teams and fora. We do it because it is part of our values and because it is simply the right thing to do.