Hi! I’m Mahesh, a passionate Software Test Engineer with hands-on experience in UI Automation (Playwright, Selenium), API Testing (Postman, Newman), ETL & Big Data Testing, and Performance Testing. I’ve worked across diverse domains, helping teams build robust automation frameworks and validate data pipelines on large-scale platforms. 🔹 UI & API Testing: Skilled in automating web and REST APIs using modern tools and integrating them into CI/CD pipelines. I ensure early bug detection using Postman mock servers and dynamic validation. 🔹 Big Data & ETL Testing: I bring practical expertise in validating end-to-end ETL pipelines using PySpark, SQL, AWS, and data warehousing tools like Snowflake, Redshift, and Oracle. I’ve built Python-based ETL validation frameworks used in production. 🔹 Database & DWH: Well-versed in writing complex SQL queries and validating data across PostgreSQL, Oracle, DB2, and SQL Server to ensure data integrity and accuracy. 🔹 Framework Development: I’ve developed and maintained robust automation frameworks for UI, API, and Big Data testing—adopting best practices and making them scalable and reusable. 🔹 ML Testing: Hands-on experience in validating machine learning models to ensure the correctness of data pipelines and model outputs. On Topmate, I’m here to mentor testers, help them grow their careers, and share real-time industry insights. You can book a session with me for: Mock Interviews (Manual/Automation/ETL/Big Data/API/Performance) Resume & LinkedIn/Naukri Profile Reviews Live Project Building Help Learning Roadmaps API Testing Guidance Mentorship & Career Doubt Clearing Let’s connect and accelerate your QA journey! 🚀