Data Business Analyst (SQL / BigQuery)

Quick Facts

• Role: Data Business Analyst (SQL / BigQuery)

• Collaboration model: Hybrid (about 8 days/month in the office)

Description

Work on a strategic banking project to transform the data landscape by building a modern, Google Cloud Platform (GCP)-based data ecosystem and implementing a data lakehouse architecture for analytics, reporting, and data management. Help shape data governance capabilities, develop data products, and build foundations for future AI solutions in a large organization.

Responsibilities

• Analyze, gather, and document business requirements; translate them into technical specifications

• Produce functional documentation, user stories, and process/data flow diagrams

• Perform source-to-target mapping between source systems and warehouse layers

• Define data transformation rules and document business logic

• Independently explore, profile, and validate data using SQL and BigQuery

• Analyze data quality, detect anomalies, and define Data Quality rules

• Contribute to data model design for silver/gold layers

• Collaborate closely with business teams, Data Engineers, Data Scientists, and other stakeholders

Requirements

• Minimum 5 years of commercial experience as a Business Analyst for data or a Data Analyst

• Advanced SQL (CTEs, window functions, aggregations, complex analytical queries, optimization and data validation)

• Practical BigQuery experience (tables, partitioning/clustering, cost optimization)

• Experience with source-to-target mapping and defining transformation rules

• Data modeling knowledge: 3NF, Kimball, Data Vault; designing silver/gold layers

• Experience analyzing business needs and preparing functional documentation

• Ability to independently analyze data, perform profiling, and verify data quality

• Advanced MS Excel

• Very good communication skills and experience working with both business and technical teams

Benefits

• Training, certifications, and conferences related to the project or collaboration scope (rules and financing agreed individually)

• Access to diverse B2B project opportunities aligned to your experience, specialization, and preferences

• Contract support from a dedicated Contract Manager

• Community initiatives, webinars, and other voluntary events

• Optional additional services (e.g., private medical care, sports card, insurance, psychological support)

• Cafeteria platform to choose services/products for available points