---
title: "Rajat Mittal - Senior Software Engineer in Bengaluru | Tal"
description: "Meet Rajat Mittal, Building Payments at PhonePe | Purdue University based in Bengaluru. AI stack includes claude code, codex, and github copilot."
image: "https://tal.club/meet/rajat-18/share-image"
---

# Rajat Mittal on Tal

## Headline

Building Payments at PhonePe \| Purdue University

## About

\* Expertise in all things technical on UPI, PPI, PA, PG\. \* Built payments products and systems used by 200\+M users daily\. Find me on Topmate: https://topmate\.io/rajat\_mittal10/page/IknSUyqPF9 Always, on the look out for new and exciting opportunities\!

## Location

Bengaluru

## AI stack

claude code

codex

github copilot

hugging face

langchain

n8n

## Work experience

Senior Software Engineer at PhonePe, Jan 2023 \- Present · 3 y 7 mo, Bengaluru, Karnataka, India, • Led a payment core team of over 10 engineers, focusing on roadmap planning and sprint management\. • Coordinated end\-to\-end timelines, ensuring technical strategy alignment and effective team mentoring\. • Developed systems for efficient queuing, sharding, and storage across PhonePe's infrastructure\. • Utilized technologies such as Kafka, Dropwizard, and Aerospike to enhance scalability for 500 million users\.

Senior Software Engineer at Twilio, Oct 2021 \- Jan 2023 · 1 yr 4 mos, Chicago, Illinois, United States, \- Worked with Edge Platforms team to develop next gen rate limiting and DDoS prevention solutions \- Microservices run at a high scale of 10 billion API calls per week and average p99 latency < 50ms \- Gained proficiency in using Java Dropwizard and Gunicorn Python WSGI HTTP Servers \- Used modern frameworks like gRPC and Envoy for speeding up service to service communications \- Initiated deployments using Terraform Infrastructure\-as\-a\-code\. \- Led a project for developing internal document store service used by several internal teams\. \- Proficiency in using different AWS and GCP cloud services like BigQuery, Kinesis, DynamoDB, ASG \- Docker and Kubernetes for containerization efforts

Software Development Engineer at Yahoo, Nov 2019 \- Oct 2021 · 2 yrs, Urbana\-Champaign Area, \- As a part of the traffic protection team worked on developing advertisement fraud prevention microservices\. \- Data analysis scripts written in Python to analyze terabytes of data data using PySpark\. \- Additionally Hadoop, HDFS, Spark, Presto, Pig, Hive for data processing and warehousing \- Java Jetty for microservices development with sub millisecond response times \- Deployed Machine learning models in production

Graduate Teaching Assistant at Purdue University, Sep 2018 \- Dec 2018 · 4 mos

Software Engineer at Wipro, Jun 2016 \- May 2018 · 2 yrs, Pune/Pimpri\-Chinchwad Area, \* Used TensorFlow and OpenCV in Python with mini\-batch gradient descent to train a nerve cell image classifier for client \* Wipro STAR award for work done on Particle analysis module which used a combination of edge detection algorithms, morphology operations, and high school geometry to infer physical properties of an object

## Education

Master of Science \- MS, Purdue University

Bachelor of Technology \- BTech, Electrical and Electronics Engineering, National Institute of Technology Karnataka

[View the original profile](https://tal.club/meet/rajat-18)

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