---
title: "NISHNATA DEBNATH - Senior Software Engineer in Greater Kolkata Area | Tal"
description: "Meet NISHNATA DEBNATH, Senior Software Engineer at Bajaj Finserv | Knight (1900+)@LeetCode | GSoc’22 @Palisadoes based in Greater Kolkata Area. AI stack includes cursor, opencode, and claudecode. Explore public work links including github."
image: "https://tal.club/meet/nishnata-debnath/share-image"
---

# NISHNATA DEBNATH on Tal

## Headline

Senior Software Engineer at Bajaj Finserv \| Knight \(1900\+\)@LeetCode \| GSoc’22 @Palisadoes

## About

I am an app devolopment enthusiast with passion for competitive coding and data analytics\.

## Location

Greater Kolkata Area

## AI stack

cursor

opencode

claudecode

## Work experience

Senior Software Engineer at Bajaj Finserv, Jan 2025 \- Present · 1 yr 8 mos, • Built a unified wrapper SDK over the NPCI Common Library \(CL\), consolidating fragmented per\-team integrations into a single source of truth for all UPI credential and authentication operations; powers Rs\. 3000 Cr\+ GMV/month on the Bajaj Finserv App \(100M\+ downloads, 4\.9/5\)\. \(Kotlin\) • Designed and developed an SDUI framework for the Bajaj Finserv App dashboard, enabling backend\-controlled rendering and per\-user personalisation with zero app releases required\. \(Kotlin/Jetpack Compose\) • Enabled ProGuard obfuscation and code shrinking on the payment SDK, protecting proprietary UPI credential logic and NPCI integration details from reverse engineering\. \(Kotlin/Gradle\) • Reduced production crash rate from 8% to 1% by resolving service connection failures, navigation graph inconsistencies, and null\-safety gaps via Firebase Crashlytics\. \(Kotlin/Java\) • Developed dual\-PSP onboarding flows registering users across 2 Payment Service Providers in a single session, handling PSP\-specific API contracts, error states, and registration lifecycle for each provider\. \(Kotlin/Java\)

Software Engineer at Bajaj Finserv, Jan 2023 \- Dec 2024 · 2 yrs, • Developed UPI Lite, enabling on\-device low\-value payments without PIN authentication; improved small\-ticket transaction success rate to 99%\+\. \(Kotlin/Java\) • Developed UPI Mandate \(AutoPay\) flows covering mandate registration, lifecycle management, eligibility checks, and auto top\-up triggers; scaled to 10 Cr\+ active mandates powering loan repayments\. \(Kotlin/Java\) • Migrated SDUI components from XML to Jetpack Compose, improving UI modularity, declarative state management, and composition\-aware animations\. \(Kotlin/Jetpack Compose\) • Refactored the payments module from monolithic god\-code to MVVM architecture, cleanly separating UI, business logic,and data layers; improved testability and eliminated inter\-component coupling\. \(Kotlin\)

Contributor at Google Summer of Code, Jun 2022 \- Sep 2022 · 4 mos, Jamaica, Integrated persistent backend data storage into the Talawa mobile app, designing a local data layer with reliable remote sync across intermittent connectivity\. \(Kotlin/Android\) • Wrote unit and integration tests and refactored modules to improve separation of concerns and long\-term maintainability\.

Github Extern at The Palisadoes Foundation, Jan 2022 \- Jun 2022 · 6 mos, Jamaica

## Education

Bachelor of Technology \- BTech, Computer Science, SRM IST Chennai

Bachelor of Technology, Computer Engineering, SRM Institute of Science & technology

## Public links

- github: https://github\.com/nishnatadebnath

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

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