Senior Test Specialist

Job Summary

Key Responsibilities

• Design, develop and test scalable batch and streaming data pipelines.

• Validate end-to-end ETL and ELT workflows, including ingestion, curation, transformation and loading.

• Perform data reconciliation, database testing and data-warehouse validation across large datasets.

• Validate dashboards and BI reports against source data, transformation rules and business metrics.

• Develop reusable test-automation frameworks using Python or Java and SQL.

• Integrate automated data-quality tests into CI/CD pipelines.

• Build and validate scalable data models using star, snowflake, normalised and denormalised structures.

• Work with cloud data technologies such as BigQuery, Data Factory, Databricks, Spark, Kafka, Pub/Sub and Airflow.

• Implement monitoring, alerting, data-quality controls and secure data-access practices.

• Diagnose defects and data-quality issues, document findings and drive resolution with relevant teams.

• Contribute to data governance, metadata, catalogue and lineage processes.