Junior Data Scientist (f/m/d)

Axpo Polska; Województwo mazowieckie; Hybrid; PLN 90,000 - 140,000; Full time

Benefits offered by this job

Full-time contract

International company

Medical care package

Multisport card subsidy

Language classes

Flexible/hybrid work hours

Office in city center

Supportive team

Job summary

Axpo Polska is seeking a Junior Data Scientist to turn energy trading questions into robust analyses, models, and data products. You’ll work with cross-functional teams to strengthen decision-making through high-quality data science.

You bring a bachelor’s in a related field and at least one year of experience, with strong SQL and Python skills. Polish language familiarity is a plus in the local context; hybrid work is available.

Qualifications

• A bachelor’s degree in data science, mathematics, IT, economics, finance, energy or a related field.
• At least one year of experience in data science or a similar analytical role.
• Strong SQL skills, including practical knowledge of query optimisation.
• Practical Python skills and understanding of data science and ML concepts (model evaluation, clustering).
• Analytical approach with critical-thinking skills to handle complex problems.
• Challenging mindset: questions assumptions and investigates root causes.
• Proactive, self-sufficient and entrepreneurial with stakeholder collaboration.
• Good spoken and written English; Polish knowledge is a plus for local context.

Responsibilities

• Develop, maintain and improve predictive ML models (time-series, regression, classification).
• Translate business questions into analyses, models and data products.
• Work with large-scale data using SQL, Python, GCP and Snowflake to deliver solutions.
• Explore and visualise results (Power BI) and explain findings to stakeholders.
• Check data quality, validate outputs and review code and results.
• Document work clearly for maintainability and handover.
• Contribute to improving processes, performance and efficiency across the business.

Skills

Critical thinking

Data analysis

Communication

Education

Bachelor's degree in data science or related field

Tools

SQL

Python

GCP

Snowflake

Power BI

Job description

Turn complex energy questions into clear, data-driven decisions

Are you analytical, curious and motivated by solving challenging problems? Join Axpo Polska as a Junior Data Scientist and help turn commercial and trading questions from the Polish energy and gas business into robust analyses, models and data products.

You'll work with colleagues across the business to strengthen decision-making through high-quality data science. You bring critical thinking, a constructive, questioning mindset and the determination to work through complex issues-not just produce numbers, but understand what they mean and communicate the insight clearly.

What you'll do

• Develop, maintain and improve predictive machine-learning models, including time-series, regression and classification models.
• Translate commercial and trading questions into analyses, models and practical data products.
• Work with large-scale data and use tools such as SQL, Python, GCP and Snowflake to deliver reliable analytical solutions.
• Explore and visualise results, including with Power BI, and explain findings to technical and business stakeholders.
• Check data quality, validate analytical outputs and critically review code and model results.
• Document your work clearly so that analyses and models can be understood, maintained and handed over effectively.
• Contribute to improving processes, performance and efficiency across the business.

What you'll bring

• A bachelor’s degree in data science, mathematics, IT, economics, finance, energy or a related field.
• At least one year of experience in data science or a similar analytical role.
• Strong SQL skills, including practical knowledge of query optimisation.
• Practical Python skills and a sound understanding of data science and machine-learning concepts, such as model evaluation, clustering and common model types.
• An analytical approach, strong critical-thinking skills and confidence working through complex, ambiguous problems.
• A challenging mindset: you question assumptions, investigate root causes and look for better ways to solve problems.
• A proactive, self-sufficient and entrepreneurial approach, with a can-do attitude and the ability to work well with multiple stakeholders.
• Good spoken and written English. Polish is relevant for the local business context; knowledge of the Polish energy and gas industry is an advantage.

What we offer

• Full-time employment contract.
• Development in an international company that is shaping the face of the energy market.
• A progressive medical care package that takes care of your health and well-being.
• Co-financing of the Multisport card, enabling the use of various forms of physical activity.
• Foreign language classes during working hours.
• Flexible working hours and the possibility to work in hybrid mode.
• An office with a beautiful view, located in the city center.
• A motivated team, ready to guide you through your daily challenges.

Details about the salary range for this position and other components of the compensation package will be provided in the following stages of the recruitment process.

At Axpo Group, we are dedicated to fostering a culture of non-discrimination, tolerance, and inclusion. As an equal opportunity employer, we welcome applications regardless of race and ethnicity, gender identity and expression, sexual orientation, age, disability, as well as socioeconomic, cultural, and religious background. We are committed to ensuring a respectful and inclusive recruiting process and workplace for everyone.