---
title: "Rahul Gupta - Engineer in Bengaluru | Tal"
description: "Meet Rahul Gupta, Engineering @OnePay | Ex-Headout | Ex-ula | IIT Dhanbad based in Bengaluru. AI stack includes claude code, cursor, and gemini. Explore public work links including github and leetcode."
image: "https://tal.club/meet/rahul-gupta-27/share-image"
---

# Rahul Gupta on Tal

## Headline

Engineering @OnePay \| Ex\-Headout \| Ex\-ula \| IIT Dhanbad

## About

Backend engineer with 6\+ years building high\-scale fintech and payments systems, currently leading a dedicated engineering team and architecting onboarding infrastructure used by 1M\+ users\. Proven record of multi\-million\- dollar impact through fraud prevention, payment infrastructure, and system reliability\. Looking to step into a Staff Engineer / Technical Lead role with broader scope\.

## Location

Bengaluru

## AI stack

claude code

cursor

gemini

github copilot

openai

## Work experience

Engineer at OnePay, May 2025 \- Present · 1 yr 7 mos, Bengaluru, Karnataka, India, — Leading a cross\-functional team building a microservice\-based onboarding platform from the ground up, setting architecture direction and using AI\-assisted development \(Cursor \+ Claude\) to accelerate delivery while improving p95 latency from 2–3s to 500ms\. — Owning the technical roadmap for Builder Card onboarding, a system now serving 1M\+ banking users, balancing reliability, scalability, and extensibility trade\-offs\. — Led design and delivery of a bespoke partner onboarding solution integrating Walmart and Workday, reducing partner integration time by 40% through close stakeholder alignment across partner engineering teams\. — Designed a state\-machine–based flow orchestrator managing 10\+ onboarding states, built specifically for extensibility across future partner and product types\. — Set technical standards for the team, including code review practices, CI quality gates, and architectural review processes\. — Built internal AI tools for Product Managers, including a Slack bot that traces a user's onboarding lifecycle screen\-by\-screen, now used company\-wide for faster debugging and support\.

Senior Software Engineer at Headout, Aug 2022 \- Apr 2025 · 2 yrs 9 mos, Bangalore Urban, Karnataka, India, \- Led a team of 4–6 engineers on select initiatives, balancing end\-to\-end execution ownership with hands\-on individual contributions\. \- Architected a PCI DSS\-compliant Save Cards feature, increasing user retention and reducing average checkout time by 70%\. \- Designed a scalable fraud detection framework utilizing extensible OOP principles, preventing over $0\.8M/month in fraudulent transactions platform\-wide\. \- Integrated a third\-party bot detection service using async coroutines, reducing latency by 15% and fraud by 60%, resulting in approximately $0\.4M/month in savings\. \- Developed a highly extensible payment microservice integrating Adyen, Checkout\.com, Apple Pay, PayPal, and FPX, improved scalability and boosted both authorization rates and adoption by 5%\. \- Built a configurable payment\-routing rule engine, minimizing developer effort for configuration changes and enabling rapid, real\-time disabling of payment methods during outages\. \- Created a real\-time service failure detection system, cutting incident downtime to under 5 minutes, packaged and shipped the system as an internal library adopted across multiple teams\. \- Drove a code\-quality initiative using SonarCloud, significantly reducing code smells, lowering technical debt, and improving overall maintainability\.

Senior Software Engineer at Ula, Nov 2021 \- Jul 2022 · 9 mos, — Engineered an event\-driven system for offline cash reconciliation, reliably handling $50,000\+/day in transactions since launch\. — Designed and built the complete anti\-fraud module from scratch, cutting fraud by approximately 75% and saving nearly $4,000/day\. — Optimized a high\-traffic user\-data endpoint with Redis caching, reducing response time from 200ms to 5–10ms – a 95% improvement\.

Software Developer at Ula, Nov 2020 \- Nov 2021 · 1 yr 1 mo, Bangalore Urban, Karnataka, India

Software Developer at BeeHyv Software Solutions Private Limited, Jul 2020 \- Nov 2020 · 5 mos, Hyderabad, Telangana, India

## Education

Bachelor of Technology \- BTech, Indian Institute of Technology \(Indian School of Mines\), Dhanbad

## Public links

- github: https://github\.com/rahulg4132
- leetcode: https://leetcode\.com/rg889666

[View the original profile](https://tal.club/meet/rahul-gupta-27)

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