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Sayantan Bharati.

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Full Stack Developer (MERN, Python), building production-ready web apps from Kolkata, India.

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Designed & built in Kolkata✦© 2026 Sayantan Bharati✦React + Next.js + Three.js✦Open to freelance & full-time✦

Designed & built in Kolkata✦© 2026 Sayantan Bharati✦React + Next.js + Three.js✦Open to freelance & full-time✦

© 2026 Sayantan Bharati

Kolkata, IN — --:-- IST

06BlogNotes & builds

Writing.

Notes on shipping real products: MERN, Next.js, TypeScript and the rest.

All architecture auth backend jwt mern nextjs nodejs notes performance react redis security seo webgl

JWT + Google OAuth Without the Headaches

30 Aug 2026securityauthJWT + Google OAuth Without the HeadachesSecure cookies, CSRF-safe flows and token hygiene that survive real users.Read more →