---
title: "Saurav Kumar - Backend Engineer(Personal Project) in Bengaluru | Tal"
description: "Meet Saurav Kumar, Full Stack & Backend Developer | Java · Spring Boot · React · Node.js | Google Solution Challenge Top 105 Global (0.16%) | B.Tech IT ’26 | Open to SWE Roles & Internships based in Bengaluru. AI stack includes antigravity, claude code, and codex."
image: "https://tal.club/meet/saurav-kumar-23/share-image"
---

# Saurav Kumar on Tal

## Headline

Full Stack & Backend Developer \| Java · Spring Boot · React · Node\.js \| Google Solution Challenge Top 105 Global \(0\.16%\) \| B\.Tech IT ’26 \| Open to SWE Roles & Internships

## About

Top 105 of 64,000\+ participants \(top 0\.16%\) — GDG Solution Challenge 2025, selected across 3,700\+ projects worldwide\. I build production\-ready systems, not just portfolios\. Here's what I've shipped: → MeshPay — an offline payment settlement network that routes payments across a peer mesh using gossip\-based forwarding and hybrid RSA\-OAEP \+ AES\-256\-GCM encryption\. Built on Java, Spring Boot, and PostgreSQL\. Deployed live on Render\. No internet required, no central server\. → Blockchain Certificate Platform — tamper\-proof ERC\-721 NFT certificates on Ethereum Sepolia, with IPFS metadata pinning and one\-scan QR verification\. No database\. No central authority\. No forgery\. Stack: Java · Spring Boot · React\.js · Node\.js · PostgreSQL · Docker · REST APIs · Solidity · IPFS Core CS: DSA · System Design · Operating Systems · Computer Networks · DBMS 200\+ problems solved on LeetCode, GFG, and CodeChef\. 1st Place — RCET Departmental Project Competition 2025 \(AI\-driven IP detection system\)\. Microsoft Learn Student Ambassador\. Final\-year B\.Tech IT @ RCET Bhilai \(May 2026\)\. Open to full\-time SWE roles and backend internships from June 2026 onward\. 📩 sauravkumar9447@gmail\.com \| 🔗 github\.com/saurav7557 \| 💼 Portfolio: saurav\-portfolio\-roan\.vercel\.app

## Location

Bengaluru

## AI stack

antigravity

claude code

codex

cursor

github copilot

lovable

## Work experience

Backend Engineer\(Personal Project\) at Self\-Employed, May 2026 \- Present · 5 mos, Bhilai, Built MeshPay — a cryptographically secured offline payment settlement network designed for low\-connectivity environments where standard UPI fails\. • Designed gossip\-based payment routing with TTL\-controlled forwarding across a peer mesh — independent of central payment servers\. • Implemented hybrid RSA\-OAEP \+ AES\-256\-GCM encryption with SHA\-256 hashing for replay\-attack prevention and idempotent processing — crypto stack built from scratch\. • Developed REST APIs spanning the full transaction lifecycle \(creation → bridge ingestion → real\-time mesh monitoring → settlement\) on Spring Boot \+ Hibernate \+ PostgreSQL\. • Containerized with Docker Compose, documented with Swagger/OpenAPI, and deployed on Render cloud\.

## Education

Bachelor of Technology \- BTech, Information Technology, Rungta College of Engineering & Technology Kohka\-Kurud Bhilai

12th, Bihar School Examination Board \(BSEB\)

[View the original profile](https://tal.club/meet/saurav-kumar-23)

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