Senior Data Engineer Full time
7+ years
Data Engineer
About BuildingBlocks
Regardless of whether accomplishing astounding customer work or aiding assemble our organization from the inside, our different gifted organization shares a solitary mission: to fabricate lovely encounters that decidedly affect individuals’ lives and the organizations we serve.

Our way of life is more reason than work, mixing the quest for certified human association with a fastidious way to deal with the things we make. All with an idealistic soul. We’re an organization that is adequately youthful to be fun and defiant – yet intense and driven enough to immensely affect the business. About the Role
We are looking for a hands-on Data Engineer who will play a key role in ensuring the accuracy, reliability, and performance of data during customer go-lives. This role focuses on validating data migrations, building optimized SQL-based data models, and implementing automated data quality checks using Python to support business analytics and reporting. Key Responsibilities
Data Migration Validation




• Validate end-to-end data migrations to ensure accuracy and completeness
• Perform checks such as data parity, nullability, duplicates, and referential integrity
• Document validation results and support migration sign-off

SQL Development & Optimization
• Write and optimize complex SQL queries (CTEs, joins, window functions)
• Analyze query performance using EXPLAIN plans and improve efficiency
• Build scalable data models to support analytics use cases

Data Quality & Automation (Python-Driven)
• Develop automated data validation checks using Python
• Work with data quality frameworks like Great Expectations, Deequ, or similar tools
• Build reusable validation scripts and ensure data reliability

Data Modeling & Documentation
• Build and maintain data models using dbt (if applicable)
• Implement tests, documentation, and lineage tracking

Workflow Orchestration
• Schedule and manage pipelines using A

📌 Senior Data Engineer (Chennai)
🏢 Buildingblocks Software Services
📍 Chennai