Senior Data Engineer (Databricks on Azure)
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Key tasks
- Develop and operate Databricks / Spark pipelines (PySpark, SQL, Delta Live Tables or Workflows).
- Design Delta Lake / lakehouse layers (bronze-silver-gold), partitioning and Unity Catalog governance.
- Build ETL/ELT jobs and orchestration with Azure Data Factory and/or Airflow; manage dependencies and retries.
- Implement data-quality checks and validation (expectations, reconciliation, anomaly alerts).
- Tune Spark job performance and cluster cost (autoscaling, Photon, job clusters, spot).
- Manage schema evolution and change control; document lineage and transformations.
Responsibilities
- Pipeline reliability and data freshness against agreed SLAs.
- Accuracy and completeness of curated datasets.
- Schema change management and backward compatibility for downstream consumers.
- Documentation of data lineage and transformations (Unity Catalog, data catalogue).
Mandatory Skills Description
- Bachelor's degree in Computer Science, Engineering, Information Systems or a related field, or equivalent practical experience.
- 7+ years in data engineering, of which 3+ on Databricks / Apache Spark and 2+ on Azure data services (ADF, ADLS, Delta Lake).
- Databricks (Workflows, Delta Live Tables, Unity Catalog), Apache Spark (PySpark, Spark SQL), Delta Lake.
- Azure: Data Factory, Data Lake Storage Gen2, Key Vault, Event Hubs, Synapse or SQL DB; Azure DevOps CI/CD for notebooks and jobs.
- Python and SQL at expert level; data modelling (dimensional, data vault) and ELT design.
- Orchestration (ADF, Airflow), data-quality frameworks (Great Expectations, DLT expectations), monitoring and alerting.
- Performance and cost tuning of Spark workloads; Git-based development and testing of pipelines.
Nice-to-Have Skills Description
- dbt, Power BI semantic models, MLflow.
- Experience in financial services, sovereign wealth / investment holding or other regulated enterprise environments.
- Experience working with distributed teams (onsite UAE with nearshore India / offshore Poland squads).