I help database administrators and infrastructure engineers level up — on Oracle, PostgreSQL, Cassandra and Kubernetes — with practice questions drawn from real production problems, not textbook definitions. After 8+ years architecting and running databases at Ericsson and TCS, I built gradeupnow.in: free quizzes and guides for DBAs preparing for interviews, certifications, or just trying not to get paged at 2am. I am also a personal finance and FIRE enthusiast. I am working on developing a personal finance APP (perfinapp) to track a diversified portfolio globally.