abhishek nair

I’m an ETL Developer and Data Integration Engineer with 2.5 years of hands-on experience designing and maintaining end-to-end ETL pipelines and data warehouse solutions at Deloitte USI. I extract and transform data from multi-system environments (Salesforce CRM, PROS, Conga CPQ) into Snowflake staging and load tables using Python automation and LLM-augmented transformation. I also independently identify STTM mapping gaps and extract discrepancies, engage client stakeholders directly, and drive resolution to keep pipelines moving.

On my current workstream, I built a production-grade, reusable ETL framework (Spot Award recipient) with a two-layer automated data validation engine, Streamlit monitoring UI, and cross-platform integration. I ensure data integrity with deterministic checks plus LLM-driven anomaly classification, manage UAT sign-off with stakeholders, and modernize workflows through reusable Python modules, recovery checkpoints, and preflight validation logs. Before focusing on ETL, I strengthened my quality mindset through healthcare API and integration testing, including REST contract validation and Selenium-based regression automation.