Abdul Haziq

I am a Software QA Analyst with five years of experience validating large-scale ETL and Big Data pipelines, specializing in PySpark, Delta Lake versioning, and cloud data migrations. I architect and implement automated validation frameworks, integrate continuous validation into CI/CD, and ensure data integrity across raw-to-gold layers for multi-terabyte datasets.

I collaborate closely with data engineering and product teams in Agile environments to troubleshoot pipeline failures, optimize performance, and align testing with business requirements. My work includes designing test strategies across AWS S3, Databricks, Postgres, and Elasticsearch, and delivering reusable validation libraries and dashboards to reduce manual effort and proactively detect anomalies.