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Karunam Goyal

Backend Engineer at CRED | Ex-Flipkart | NIT Kurukshetra

Bengaluru

5+ years of work experience

CRED
Dec 20241 yr 10 mosPresent

Bengaluru, Karnataka, India

Flipkart
Feb 20231 yr 11 mosDec 2024

Bangalore Urban, Karnataka, India

• Was part of the core Flipkart UPI senior team responsible for managing all UPI-related features and development and as part of the founding team achieved the groundbreaking milestone of 1 million customers in the first week and 10 million users within the first 6 months of product launch. • Crafted multiple key microservices using Dropwizard from scratch for UPI including User Service, Gateway, UI Adaptation layer, Rewards Manager, Notification service, Auto-pay, Rate-limiter module, and Timeout Module serving 10 million customers efficiently at a very high scale. • Implemented a high-performance distributed platform utilizing Apache Storm which supports Apache Kafka and Pulsar as stream sources for our critical async capabilities, ensuring scalability and fault tolerance currently on-boarded with 8 use-cases including UPI live transaction flow.
Flipkart
Jun 20211 yr 9 mosFeb 2023

Hybrid

• Conducted the first red-line load testing for the refunds system to handle 10 times the BAU load, identifying bottlenecks and tuning for seamless system operation during peak sale hours. • Worked on instant refund initiative with Visa Direct, MasterCard Send, and UPI Refunds which reduced the SLA from 3-5 Business days to 24 hrs. • Part of critical RBI compliance asks for Tokenisation from the Refunds team. • Managed critical migrations for refunds systems including VM to K8s migration, DB version upgrade, and DC Migration leading to 50% fewer on-call incidents. • Proactive participation during critical moments with external partner outages prevented SLA breaches of over 30-40k refunds at a time. • Worked on setting up Azkaban Workflow engine for automating and scheduling multiple jobs
Flipkart
Jan 20206 mosJun 2020

Bangalore

Worked on a standalone project for future gRPC migrations. Automatic Conversion of already developed REST POJO Models to proto3 IDL. A library for creating log summary and testing the conversion to move current classes to the proto definition.

Karunam’s AI Stack

claude code
claude code
codex
codex
langgraph
langgraph
langsmith
langsmith
n8n
n8n
openclaw
openclaw

Education

National Institute of Technology, Kurukshetra, Haryana

Bachelor of Technology - BTech, Computer Engineering

National Institute of Technology, Kurukshetra, Haryana

20174 yrs2021
DAV Centenary Public School, Sirsa

High School, PCM

DAV Centenary Public School, Sirsa

200413 yrs2017

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Karunam Goyal on Tal

Headline

Backend Engineer at CRED | Ex-Flipkart | NIT Kurukshetra

About

Computer Science undergrad with a strong academic background (CGPA: 9.8).

Location

Bengaluru

AI stack

claude code

codex

langgraph

langsmith

n8n

openclaw

Work experience

Back End Engineer at CRED, Dec 2024 - Present · 1 yr 10 mos, Bengaluru, Karnataka, India

SDE2 at Flipkart, Feb 2023 - Dec 2024 · 1 yr 11 mos, Bangalore Urban, Karnataka, India, • Was part of the core Flipkart UPI senior team responsible for managing all UPI-related features and development and as part of the founding team achieved the groundbreaking milestone of 1 million customers in the first week and 10 million users within the first 6 months of product launch. • Crafted multiple key microservices using Dropwizard from scratch for UPI including User Service, Gateway, UI Adaptation layer, Rewards Manager, Notification service, Auto-pay, Rate-limiter module, and Timeout Module serving 10 million customers efficiently at a very high scale. • Implemented a high-performance distributed platform utilizing Apache Storm which supports Apache Kafka and Pulsar as stream sources for our critical async capabilities, ensuring scalability and fault tolerance currently on-boarded with 8 use-cases including UPI live transaction flow.

SDE at Flipkart, Jun 2021 - Feb 2023 · 1 yr 9 mos, Hybrid, • Conducted the first red-line load testing for the refunds system to handle 10 times the BAU load, identifying bottlenecks and tuning for seamless system operation during peak sale hours. • Worked on instant refund initiative with Visa Direct, MasterCard Send, and UPI Refunds which reduced the SLA from 3-5 Business days to 24 hrs. • Part of critical RBI compliance asks for Tokenisation from the Refunds team. • Managed critical migrations for refunds systems including VM to K8s migration, DB version upgrade, and DC Migration leading to 50% fewer on-call incidents. • Proactive participation during critical moments with external partner outages prevented SLA breaches of over 30-40k refunds at a time. • Worked on setting up Azkaban Workflow engine for automating and scheduling multiple jobs

SDE Intern at Flipkart, Jan 2020 - Jun 2020 · 6 mos, Bangalore, Worked on a standalone project for future gRPC migrations. Automatic Conversion of already developed REST POJO Models to proto3 IDL. A library for creating log summary and testing the conversion to move current classes to the proto definition.

Education

Bachelor of Technology - BTech, Computer Engineering, National Institute of Technology, Kurukshetra, Haryana

High School, PCM, DAV Centenary Public School, Sirsa

Karunam Goyal - Back End Engineer in Bengaluru | Tal