---
title: "Prashant Chauhan - Software Development Engineer in Greater Bengaluru Area | Tal"
description: "Meet Prashant Chauhan, ⚡ SDE @ Razorpay | Banking Microservices & AI/LLM Observability | Ex-Paytm Payments Bank based in Greater Bengaluru Area. AI stack includes anthropic apis, claude code, and claude."
image: "https://tal.club/meet/prashant-chauhan/share-image"
---

# Prashant Chauhan on Tal

## Headline

⚡ SDE @ Razorpay \| Banking Microservices & AI/LLM Observability \| Ex\-Paytm Payments Bank

## About

Backend engineer at Razorpay, working where fintech meets serious scale\. Over the last few years I've pulled critical flows out of a PHP monolith into Go microservices — migrating 37M\+ records with zero downtime, segregating read/write databases, and onboarding partner banks \(IDFC, Yes Bank\) with Elasticsearch\-backed search that cut statement\-fetch latency from \~15s to under 500ms\. I led the end\-to\-end backend for TDS on Business Banking payouts across 8 services, and I now own Razorpay's self\-hosted LLM observability platform \(Langfuse \+ ClickHouse on AWS\) — live in production, with Grafana dashboards, per\-team cost attribution, and a 5\-language PII\-redaction SDK that keeps AI traces compliant\. I gravitate to problems that span services, data and infrastructure at once — migrations, reconciliations, and platform work where correctness and reliability are non\-negotiable\. Before Razorpay I built core fintech systems \(AEPS, NCMC, Fixed Deposits, FASTag, Core Banking\) at Paytm Payments Bank\.

## Location

Greater Bengaluru Area

## AI stack

anthropic apis

claude code

claude

codex

cursor

langfuse

## Work experience

Software Development Engineer at Razorpay, Nov 2024 \- Present · 1 yr 10 mos, Bengaluru, Karnataka, India, Backend engineer working where fintech meets serious scale — owning systems end\-to\-end from design to on\-call\. • Own Razorpay's self\-hosted LLM observability & evaluation platform \(Langfuse \+ ClickHouse\) — POC → production on AWS EKS \(Terraform, Helm/Spinnaker, Grafana\), with per\-team cost attribution and enabling teams to run LLM\-as\-a\-Judge evals and CI quality gates, at a fraction of the cost of Langfuse Enterprise\. • Built an internal PII redaction SDK across 5 languages \(Go, Python, TypeScript, Ruby, Java\) using Microsoft Presidio — defense\-in\-depth for LLM traces\. • Led TDS for Business Banking payouts end\-to\-end across 8 services \(tax\-compliance, payouts, CFA, API, authz\) \+ Edge/Kong onboarding\. • Owned the Account Statements service — 12–20 lakh statements/day across RBL, Yes Bank, IDFC & Axis at 99\.9% uptime — and led its monolith → microservice decomposition: migrated 37M\+ records with zero downtime, cut over 100% of statement\-fetch traffic, segregated read/write DBs\. • Designed shared Elasticsearch infrastructure reused across multiple pods \(lower infra cost\), cutting statement fetch \~15s → 200–500ms; overhauled reconciliation across RBL/Yes Bank/IDFC, raising recon rate 20% → 90%\. • Drove reliability & standards — MSK Kafka migration, Go 1\.24, 95%\+ test coverage, P0/P1 response — and mentored engineers via detailed PR reviews\.

Software Engineer at Paytm Payments Bank, Jul 2022 \- Nov 2024 · 2 yrs 5 mos, Remote, • Built the Order Management Service \(\~40% faster order processing\) powering AEPS, NCMC, Fixed Deposits, FASTag, Core Banking, debit/prepaid cards, utility payments & merchant payout — serving millions daily\. • Delivered a dynamic\-pricing feature \(time\-to\-market −50%\) and an API layer automating back\-office ops \(deployment changes −50%\)\. • Secured inter\-service comms with RSA, AES\-GCM, JWT \(security incidents −20%\) and cut order\-processing failure rate −25%\. • Authored system\-architecture & workflow docs, cutting new\-engineer onboarding \~80%\.

Software Engineer Intern at Paytm Payments Bank, Jan 2022 \- Jul 2022 · 7 mos, Noida, Uttar Pradesh, India, Backend internship on the bank's merchant\-onboarding stack — converted to full\-time at the end of the program\. • Built a merchant catalogue and onboarding microservice that streamlined how new merchants uploaded and managed product information\. • Designed scalable Java/Spring Boot services backed by MySQL, exposing clean REST APIs consumed by internal back\-office tools\. • Wrote unit tests and authored handover documentation that fed into the production rollout\.

R&D Engineer \(Intern\) at HR industry, Aug 2021 \- Oct 2021 · 3 mos, Pune Division, Maharashtra, India, Embedded\-systems / IoT R&D internship — built smart\-lighting control firmware and supported the company's internal network reliability\. • Co\-developed a retrofit remote\-control & automation solution for LED drivers, enabling centralized control and live monitoring of lighting systems\. • Built driver\-health, control and power\-consumption analytics using sensor data, AWS IoT, and standard IoT communication protocols\. • Integrated the solution into existing infrastructure with cross\-functional teams; helped deliver a client\-facing UI for monitoring\. • Audited and improved the office WiFi network — heat\-mapping coverage, scripting analysis, and implementing fixes that improved reliability and throughput\.

College Ambassador at GeeksforGeeks, May 2019 \- Jun 2020 · 1 yr 2 mos, Bengaluru, Karnataka, India

College Ambassador at Digit College Ambassador Program, Apr 2019 \- Apr 2021 · 2 yrs 1 mo, Noida, Uttar Pradesh, India, Founded and ran a college\-wide tech community as Digit Magazine's campus representative\. • Built a tech\-enthusiast community from the ground up, growing it across the campus during my undergrad\. • Curated and shared weekly industry updates, ran tech\-support clinics, and brought in industry mentors for consultation sessions\. • Created a recurring forum for knowledge\-sharing that fed peers into projects, internships and tech decisions\.

## Education

Bachelor of Engineering \- BE, Electronics and Telecommunication Engineering, Ramaiah Institute Of Technology

12, Computer Science, kendriya vidyalaya

[View the original profile](https://tal.club/meet/prashant-chauhan)

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