---
title: "Arjun Prasad - Software Engineer - UPI Core Transactional Team in Pune/Pimpri-Chinchwad Area | Tal"
description: "Meet Arjun Prasad, Backend Engineer | Distributed Systems & Payments | 20K+ RPS at PhonePe (UPI Core) based in Pune/Pimpri-Chinchwad Area. AI stack includes antigravity and codex."
image: "https://tal.club/meet/arjun-prasad/share-image"
---

# Arjun Prasad on Tal

## Headline

Backend Engineer \| Distributed Systems & Payments \| 20K\+ RPS at PhonePe \(UPI Core\)

## About

Backend engineer building high\-throughput payment infrastructure at PhonePe \(500M\+ users\)\. Currently on the UPI Core Transactional team — handling 20,000\+ RPS and 500M\+ daily transactions\. Previously owned end\-to\-end BBPS infrastructure processing 4M\+ billpay transactions/day\. What I've built: → Greenfield microservice \(UPMS\) — 0 to 500\+ RPS in 5 months → Org\-wide async messaging framework \(Axon\) — 45% infra cost reduction → Active\-Active DC migration — circular replication, zero\-downtime failover → Status check pipeline overhaul — 20K stuck txns/day → <100 → Piped Gas Meter Reading — 1 week to production, demoed at GFF 2025 I care about: reliability at scale, operational ownership, and building systems that don't wake people up at night\. Looking for Senior Backend Engineer roles at product\-focused companies\. Portfolio: https://arjunprsd\.github\.io/portfolio/

## Location

Pune/Pimpri\-Chinchwad Area

## AI stack

antigravity

codex

## Work experience

Software Engineer \- UPI Core Transactional Team at PhonePe, Mar 2026 \- Present · 6 mos, Pune Division, Maharashtra, India, Operating on India's highest\-traffic payment rail — 20K\+ RPS, 500M\+ daily UPI transactions\. • Building E2C refund status tracking for 2\-2\.5L daily refunds • Owning NPCI contract architecture and UDIR dispute resolution flows • External PSP integrations \(GPay → PhonePe refund resolution\)

Software Engineer \- BBPS Pod at PhonePe, Feb 2022 \- Feb 2026 · 4 yrs 1 mo, Pune District, Maharashtra, India, Owned distributed microservices processing 4M\+ billpay transactions/day at 500 RPS peak\. Key Deliverables: • UPMS \(0→1\): Greenfield microservice — sharded DB, proxy layer, recon engine, 20% txn growth • Axon Framework: Async messaging abstraction adopted org\-wide — 45% infra cost reduction • Active\-Active DC: Circular replication, MemQ migration, 50% blast radius reduction • Status Check Overhaul: 20K stuck/day → <100, resolution 9hrs → <10min • Gas Meter Reading: Contract to production in 1 week, demonstrated at GFF 2025 • Paylink Migration: \+15% monthly transactions \| Loan API 1\.1: NPCI spec compliance Leadership: Mentoring 3 engineers, 117 code reviews, driving design decisions and production triage across pod\. "Distinguished" rating \(highest tier\) — "Completed the implementation flawlessly and quickly"

Software Engineer at Samsung Electronics, Jul 2021 \- Feb 2022 · 8 mos, Noida, Uttar Pradesh, India, • Reduced audio device setup time by 30% via Bluetooth module optimization \(1,000\+ devices\) • Samsung SWC Professional certification \(DSA\)

Student at National Institute of Technology Delhi, Aug 2017 \- Jul 2021 · 4 yrs, Delhi, India

## Education

Bachelor of Technology \- BTech, Computer Science, National institute of technology delhi

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

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