Junior Data Scientist

Data ScientistData ScientistContractRemoteJuniorTeam 10,001

Location

Poland

Posted

2 days ago

Salary

0

Seniority

Junior

Job Description

Junior Data Scientist

InPost

Role Description You’ll join the Forecasting Domain within our Data & AI division as a Junior Data Scientist. Our team predicts parcel volumes and operational demand across multiple European markets - forecasts that drive planning, capacity and decisions all the way up to C-level. This is a role built for someone at the start of their career: you’ll learn directly from experienced data scientists, contribute to real forecasting models from day one, and grow along a clear path from Junior toward Senior and beyond. We care more about how you think than how many years you’ve worked. Tech stack: Python (Pandas, NumPy, Scikit-learn), SQL & data warehouses, PySpark & distributed processing, Databricks, Cloud platforms (Azure / GCP / AWS). Working under the guidance of senior team members, you will: - Run end-to-end forecasting analyses on real business problems - from data preparation and feature engineering through to modelling and turning results into clear, actionable recommendations - Build and evaluate time series and machine learning forecasting models, validating them through rigorous testing and iterative improvement - Write clean, well-structured code and take part in code reviews to keep our standards high and share knowledge - Take ownership of your tasks: estimate your work, communicate progress, and flag issues early to deliver on time - Support the full lifecycle of our forecasting products, helping maintain models in production and contributing to handovers - Keep learning - deepening your technical foundations and forecasting expertise through on-the-job work and close collaboration with the team You’ll work day-to-day with data scientists, product leads, ML engineers, data engineers and business stakeholders, so clear communication matters as much as clean code. Qualifications - Higher education in progress or completed (Bachelor’s or Master’s) in computer science, statistics, mathematics, physics, econometrics or a related field - Around a year of first commercial / internship experience in data analysis or data science - or an equally strong record of documented academic, research or competition participation - Good knowledge of Python for data workflows (Pandas, NumPy, Scikit-learn) - Practical SQL skills for querying relational databases - Solid grounding in data cleaning, wrangling and exploratory data analysis (EDA), and a good understanding of basic statistics - Familiarity with core ML methodologies (regression, classification), including evaluation metrics and cross-validation - Ability to visualize and communicate insights clearly (e.g. Matplotlib, Plotly), with focus on storytelling and clarity - English at B2 level or higher - Proficiency in the use of LLM-Agentic technology in software development: Claude Code, Cursor, OpenAI Codex, etc. Requirements - A strong track record in data science / ML competitions (Kaggle and similar), olympiads or hackathons - Documented academic or personal projects in data analysis or machine learning — a thesis, research, publications or a solid github portfolio - Exposure to time series or forecasting methods (e.g. ARIMA / classical statistical models, gradient boosting, or modern forecasting approaches) - Familiarity with PySpark or other big-data tools - A basic understanding of cloud platforms (e.g. AWS, GCP, Azure) and simple data pipelines (Airflow, dbt) - Experience building dashboards and reports (Streamlit, Dash, Power BI) - Exposure to containerisation and experiment tracking (Docker, MLflow) - Reproducible-workflow habits: notebooks, Git, clean code and clear documentation Benefits - Remote role across Poland. - Access to e-learning platforms - eTutor, GoodHabitz, Data Camp, and more. - A wide range of benefits, including the MultiSport+ card, private healthcare, and group insurance, is available on the Worksmile platform. - External and internal growth opportunities - conferences, trainings, workshops. - Chances to broaden your skill set and acquire new competencies through daily work, challenging projects, and training activities. - B2B type of contract

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