Snowflake Data Engineer (HL7 / Healthcare Data)

HCLTech – Digital Business is seeking a Snowflake Data Engineer to support healthcare data initiatives. The role focuses on designing Snowflake-based data platforms, building HL7 data pipelines, migrating SQL Server ETL processes, and developing analytics-ready data models while ensuring data quality, lineage, governance, and performance.

Responsibilities:

• Gather requirements and analyze existing HL7 → SQL Server → ETL workflows
• Design Bronze, Silver, Gold layers in Snowflake
• Build data ingestion pipelines for HL7 messages (ADT, ORM, ORU)
• Parse and map HL7 data into structured relational models
• Perform data transformation, cleansing, and normalization
• Reverse engineer SQL Server databases (tables, SPs, jobs, dependencies)
• Migrate ETL and batch jobs to Snowflake (Tasks/Streams/ADF/Airflow)
• Develop data models (fact & dimension tables) for analytics
• Ensure data quality, lineage, and governance
• Implement scheduling, monitoring, and performance optimization

Requirements:

• • Strong experience in Snowflake (Medallion Architecture)
• • Expertise in SQL Server (Schema, SPs, Jobs, Performance tuning)
• • Knowledge of HL7 data structures & healthcare workflows
• • Experience in ETL/ELT tools (ADF, Airflow, etc.)
• • Data modeling (Dimensional / Star Schema)
• • Handling semi-structured data (JSON/VARIANT)
• • DICOM data exposure
• • Real-time streaming (Kafka/Event Hub)
• • Healthcare domain experience
• • Data governance & security (HIPAA awareness)