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Piyush Kumar Singh

Senior backend engineer. I write about Spring Boot, system design, and now Spring AI — from a Java dev's perspective

Joined Joined on  Personal website https://medium.com/@singh.piyush

Work

SSE @ Paytm Payment Bank

How OAuth2 Login Works in Spring Security — The Authorization Code Flow Explained
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How OAuth2 Login Works in Spring Security — The Authorization Code Flow Explained

#springsecurity #oauth #springboot #java
Comments 1
7 min read

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Spring AI Tool Calling Explained | How to Give Your LLM Real Superpowers
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Spring AI Tool Calling Explained | How to Give Your LLM Real Superpowers

#ai #springboot #llm #rag
Comments 1
6 min read
Spring AI Explained — ChatClient, RAG, Advisors, and Every Core Component
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Spring AI Explained — ChatClient, RAG, Advisors, and Every Core Component

#java #springboot #ai #webdev
Comments 1
7 min read
How Redis Actually Works — RAM, Single Thread, and the Expiry Behavior Nobody Explains
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How Redis Actually Works — RAM, Single Thread, and the Expiry Behavior Nobody Explains

#redis #softwareengineering #database #backend
Comments
7 min read
How Spring Security Works Internally (Filters, Authentication & Authorization Explained)
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How Spring Security Works Internally (Filters, Authentication & Authorization Explained)

#java #spring #springsecurity #backend
Comments
5 min read
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