BI Engineer (SQL & PowerBI) - Data-Driven Growth

Base.com; Warszawa; On-site; PLN 150,000 - 210,000; Full time

Job summary

Base.com in Warszawa seeks a Business Intelligence Developer to lead end-to-end BI development, turning data into insights that shape growth. You will own requirements, data ingestion, warehousing, and reporting, delivering robust dashboards and data models for strategic decisions.

The ideal candidate has deep SQL expertise, advanced Power BI skills, and solid experience in data warehousing and ETL/ELT. Collaboration with a global team and a business-first mindset are essential.

Qualifications

• 3+ years in Business Intelligence.
• Understanding of data warehousing architecture, data modelling concepts, and ETL/ELT best practices.
• Advanced proficiency in SQL for complex querying and performance tuning.
• Expertise with BI/data visualization tools (Power BI).
• Proficiency with version control (Git).
• Nice-to-have: AWS data components (Iceberg, S3, Glue, Redshift).
• Nice-to-have: AI-driven data structures development.

Responsibilities

• Own the full lifecycle of BI development from requirements to adoption.
• Act as a partner for business stakeholders and data engineers.
• Design, develop, and maintain scalable BI solutions using our modern stack (AWS Redshift, AWS RDS, PowerBI, Git, AI tools).
• Develop comprehensive data models and build interactive dashboards using Power BI.
• Perform ad-hoc data analysis and build automated reporting solutions.

Skills

Advanced SQL

Power BI

Data warehousing

ETL/ELT

Data modelling

Performance tuning

Git version control

AWS data services

Tools

Power BI

AWS Redshift

S3

Glue

Iceberg

Redshift

Git

Job description

Base.com in Warszawa seeks a Business Intelligence Developer to lead end-to-end BI development, turning data into insights that shape growth. You will own requirements, data ingestion, warehousing, and reporting, delivering robust dashboards and data models for strategic decisions.

The ideal candidate has deep SQL expertise, advanced Power BI skills, and solid experience in data warehousing and ETL/ELT. Collaboration with a global team and a business-first mindset are essential.