Senior Data Engineer
Posted
Summary
Senior Data Engineer in Sydney building and maintaining dbt transformation models, writing complex Snowflake SQL, and developing Airflow DAGs on AWS ECS, plus Python Lambda-based ingestion and data quality testing. Requires strong SQL, dbt Core, and broad AWS data-stack knowledge, ideally with financial data files.
- Building and maintaining dbt transformation models across multiple pipeline layers — from raw ingestion through to governed, consumer-ready datasets
- Writing Snowflake SQL for complex transformations: type casting, deduplication, incremental load logic, surrogate key generation
- Developing and debugging Apache Airflow DAGs on AWS ECS
- Contributing to AWS Lambda-based ingestion( Python) — file validation, control file generation, S3 event handling
- Maintaining source-to-target mapping documentation and aligning models to business requirements and data specs
- Supporting onboarding of downstream consumers via data sharing mechanisms and event-driven notifications
- Participating in code reviews, writing YAML-based data quality tests, and owning tickets from design through to production
- Strong SQL
- Proficiency with dbt Core
- Apache Iceberg Table format (Nice to have)
- AWS - Working Knowledge of S3, Lambda, MWAA, ECS, Glue Catalogs, Lake Formation, Lambda, SQS, EventBridge
- Experience with fixed-format or structured financial data files