Author
Saket Bhatnagar
Founder, SevyDevy
Saket Bhatnagar is a software engineer from India and the founder of SevyDevy. He works on frontend architecture, scalable systems and AI-enabled products.
He researches, reviews and edits every SevyDevy Learn guide, so each one explains the why behind a topic and ends with the questions interviewers actually ask.
Latest guides
Guides Saket Bhatnagar reviewed and edited most recently.
- Contextual Retrieval Explained: Chunk Context, Index Cost and RecallAI and GenAI · 24 min read
- API Key Management Explained: Formats, Hashing, Rotation and LeaksBackend · 25 min read
- MuPDF's October 2026 PDF Encryption Flaw Explained: A 9-Bit AES KeyBackend · 15 min read
- Auction System Design: Proxy Bids, Anti-Sniping and a Consistent Top BidSystem design · 30 min read
- Bot Detection System Design: Signals, Risk Scores and Tiered ResponsesSystem design · 29 min read
- Browser Code Editor Design: Piece Tables, Incremental Parsing and LSPFrontend · 28 min read