Data Business Analyst (SQL / BigQuery)

Quick Facts

• Role: Data Business Analyst (SQL / BigQuery)

• Engagement: Hybrid work model (average ~8 days/month from the office)

Description

You will support a strategic banking transformation of the data area by helping build a modern data ecosystem on Google Cloud Platform (GCP) using a data lakehouse architecture. The work includes translating business needs into functional specifications, mapping and transforming data (source-to-target), defining transformation and data quality rules, and performing independent data exploration and validation using SQL and BigQuery. You will also contribute to data governance and the foundation for future AI solutions in a large organization.

Responsibilities

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

• Create functional documentation, user stories, and diagrams of processes and data flows

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

• Define data transformation rules and document business logic

• Explore, profile, and validate data using SQL and BigQuery

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

• Support data model design for silver/gold layers

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

Requirements

• Minimum 5 years of commercial experience as a Business Analyst (Data) or Data Analyst

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

• Practical BigQuery experience (queries, partitioned and clustered tables, cost optimization awareness)

• Source-to-target mapping and data transformation rules experience

• Data modeling knowledge (3NF, Kimball, Data Vault; silver/gold layer design)

• Ability to analyze business requirements and prepare functional documentation

• Independent data analysis, profiling, and data quality verification skills

• Advanced MS Excel knowledge

• Strong communication skills and experience working with both business and technical teams

Benefits

• Transparent B2B cooperation framework and project opportunities aligned to your experience and preferences

• Dedicated Contract Manager as your main point of contact

• Training, certifications, and conference participation (rules and financing agreed individually)

• #SmartChange option to join another qualification process when the project ends or when you want a new role

• Access to Edge1S community initiatives (webinars and other voluntary events)

• Physical activity initiatives and access to shared training spaces

• Optional additional services (private medical care, sports card, insurance, psychological support) based on availability and terms

• Cafeteria platform to choose optional benefits/products using allocated points