Data Engineer (Mid/Regular)

Who are we? Lumicode Sp. z o.o. is part of the Pentacomp Group, a provider of IT solutions and professional IT services for large enterprises and the public sector.At Pentacomp, we develop IT solutions that combine innovation with many years of experience. We have been operating in the market for nearly 30 years and have successfully delivered numerous projects during that time. For our client, we are currently looking for a Regular Data Engineer. Responsibilities • Building and developing efficient analytics pipelines bridging Data Engineering and Data Product. • Co creating the end to end analytics strategy — from raw data to reports and dashboards. • Developing and maintaining dbt data models using software engineering best practices. • Defining key metrics and designing clear, effective data visualisations. • Optimising the data warehouse for performance, cost, and complexity. • Ensuring data consistency (“single source of truth”) and supporting self service analytics culture. • Monitoring costs and diagnosing potential performance issues. Technical Requirements – Must Have • Experience with dbt (cloud or local). • Experience with cloud data warehouses: Snowflake (BigQuery/ClickHouse considered a plus). • Very good knowledge of SQL. • Experience building robust, scalable data models (Kimball, OBT, Data Vault). • Understanding of data warehouse principles and ETL/ELT processes • Experience with data visualisation tools (e.g., Power BI, Tableau, Looker, QuickSight, Superset, ThoughtSpot). • Ability to work with raw data and transform it into business insights. • Strong attention to detail and code quality. • English at minimum B2+ level. Nice to Have • Python and command line experience. • Experience with ThoughtSpot. • Familiarity with GitHub Actions / CI/CD. • Degree in a quantitative or technical field. • Experience in Programmatic / AdTech. Technologies Used in the Project • AWS S3 & Athena – raw data storage and querying • Snowflake – data warehouse • dbt Cloud / Airflow – orchestration • dbt – transformations and testing • ThoughtSpot – data visualisation • GitHub – version control • Python – integrations and working with API endpoints