---
title: "Vishal Sharma - Software Engineer in Bengaluru | Tal"
description: "Meet Vishal Sharma, SDE-1 · Backend & Distributed Systems · Cashfree Payments | GSoC ’25 OpenELIS | IIITN ’26 based in Bengaluru. AI stack includes codex and claudecode."
image: "https://tal.club/meet/vishal-sharma-3/share-image"
---

# Vishal Sharma on Tal

## Headline

SDE\-1 · Backend & Distributed Systems · Cashfree Payments \| GSoC ’25 OpenELIS \| IIITN ’26

## About

Software Engineer at Cashfree building payment infrastructure and distributed backend systems\. Previously worked on ONDC seller integrations, healthcare interoperability systems through GSoC 2025, and large\-scale identity verification platforms\. Interested in distributed systems, payment infrastructure, reliability engineering, and high\-throughput backend platforms\. Tech stack: Go, Java, Spring Boot, gRPC, Redis, Kafka, PostgreSQL, Docker, AWS\.

## Location

Bengaluru

## AI stack

codex

claudecode

## Work experience

Software Engineer at Cashfree Payments, Jun 2026 \- Present · 3 mos, Led end\-to\-end development of a promotional offers platform in Java and Spring Boot, serving 500\+ merchants processing ₹100Cr\+ monthly GMV Built a fault\-tolerant distributed subscription billing system in Java 17 with Redis locking and idempotency guarantees, processing 8,000\+ recurring payments/day Migrated payment messaging infrastructure from Apache Kafka to Redis Streams, sustaining 5,000\+ events/minute while reducing infrastructure cost by 30% Optimized high\-traffic MySQL queries using composite indexing and JPA Criteria API, reducing database latency by 40%

Software Engineer Intern at Cashfree Payments, Jul 2025 \- Jun 2026 · 1 yr, Worked with the Flowwise Native team to develop a rule\-based payment routing system that lets merchants configure custom logic based on factors like amount, transaction type, and gateway success rates

GSoC Contributor @OpenElis at Google Summer of Code, Jun 2025 \- Sep 2025 · 4 mos, Washington, United States, Architected a Spring Boot backend module integrating Open Concept Lab REST APIs, automating 50\+ healthcare lab parameter mappings across facilities in 5 countries Reduced manual clinician setup time by 60%, eliminating 120\+ operational hours/month across healthcare workflows Built integration test suites using MockMvc for 15\+ REST endpoints, preventing regressions and reducing API response payload by 35%

Software Engineer Intern at Stealth Startup, May 2025 \- Aug 2025 · 4 mos, Remote, Built workflow automation on HarmonyOS that reduced health insurance claim verification time by 30%, directly cutting 4hrs/claim Designed and deployed 5 automated verification pipelines, replacing manual steps in the claims processing workflow Shipped production automation handling 1k insurance claims, improving end\-to\-end processing efficiency by 30%

Software Developer Intern at Open Network For Digital Commerce \(ONDC\), Dec 2024 \- Mar 2025 · 4 mos, Delhi, India, Developed a concurrent GraphQL\-to\-REST adapter in Golang for Shopify integration using goroutines and channels, onboarding 1,500\+ sellers with sub\-100ms latency Designed and deployed containerized microservices across 6 services using Docker Compose, Go, and AWS EC2, achieving 99\.5% uptime Built observability using Prometheus exporters tracking p50/p95/p99 API latency and seller funnel metrics, reducing downstream failures by 35%

BackEnd Developer at Code for Good Tech \(C4GT\), Jun 2024 \- Sep 2024 · 4 mos, Remote, Built secure REST APIs for digital identity verification handling 100k requests, with 99\.9% uptime under production load Optimized database query performance by 40% for identity verification workflows, reducing lookup latency from 120ms to 70ms

## Education

Bachelor of Technology \- BTech, Computer Science, Indian institute of information technology Nagpur

RMVM : Raman Munjal Vidhya Mandir

[View the original profile](https://tal.club/meet/vishal-sharma-3)

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