Varun Arora

Software Engineer

New Delhi, IN.

About

Software Engineer with experience in backend development, cloud monitoring, and system observability. Proficient in Python, Java, AWS, and various database technologies. Strong problem-solving skills and a track record of delivering impactful solutions.

Work

Infosys

Software Engineer

Summary

Led the development of a multi-stage retrieval system for The Economist Group client, combining AWS Bedrock (LLMs) for intent classification and RAG (OpenSearch + LangChain) for document retrieval.

Highlights

Scaled to 20k+ daily requests with 97% intent accuracy.

Conducted architecture reviews with client to engineer optimal workflows and reduced cloud costs by 35% ($24k/year) and system latency by 44% using optimized OpenSearch clusters and refined AWS Bedrock models selection proving deep hands-on with AWS.

Enhanced system observability by integrating New Relic across 5+ microservices, cutting incident resolution time by 40%.

Integrated Java/Spring Boot/Kafka (via Infosys training) to build internal event-driven tools, improving cross-system data synchronization efficiency by 30%.

Biz2Credit

Software Engineer

Summary

Led backend development for a loan approval system (Python/Flask) of a banking client with Redis caching and MySQL database integration.

Highlights

Handled 1.5k RPM with <200ms latency.

Built a cloud monitoring system (React + Flask + MongoDB) that tracked 25+ AWS accounts, exposing APIs with JWT auth and saving $30k/year in cloud resource costs.

Automated Kubernetes cluster monitoring by designing data pipelines to export metadata (pods, services, volumes) to a cloud monitoring system of 20+ clusters, eliminating manual SSH access and reducing DevOps troubleshooting time by 50%.

Debugged cross-service Redis-DB write failures caused by silent master node downtime, implementing circuit breakers to fail fast during DB master unavailability and monitoring alerts for master DB health, reducing incident resolution time by 70% for future.

Streamlined CI/CD pipelines using Jenkins for 5+ microservices using Jenkins, reducing deployment failures by 45%.

Education

Maharaja Agrasen Institute of Technology

BTech Computer Science and Engineering Grade: 9.21

Awards

Infosys RISE Insta Awards

Infosys

Received 2 Infosys RISE Insta Awards for resolving critical issues on monitoring integration, communicating issues and driving project to production in time crunch and for upskilling in GenAl and publishing blogs to share knowledge on Medium.

Biz2Credit Functional Award

Biz2Credit

Awarded Biz2Credit Functional Award for developing and deploying of cloud monitoring system and debugging cross services Redis issues across different microservices and databases for crucial client projects and successfully leading them to production.

Skills

Python

Java

SQL

JavaScript

Spring Boot

Spring MVC

JPA/Hibernate

FastAPI

Flask

AWS

Docker

Kubernetes

Jenkins

GitHub Actions

Prometheus

Grafana

PostgreSQL

MySQL

MongoDB

Redis

OpenSearch

Microservices

REST APIs

System Design

Distributed System

Low-Level Design

OOPs

Projects

Scalable URL Shortener

Summary

Architected a highly scalable URL shortener service using FastAPI, Docker, and Kubernetes, leveraging Redis for caching and MongoDB for persistent storage.

Personal Blog Chatbot

Summary

Developed a chatbot to answer questions related to content of my blog posts by scraping the blog website for all blogs and then parsing and extracting content using LangChain loaders, with advanced RAG techniques to classify relevance and provide accurate responses. ChromaDB was used for the vector database where data ingestion and retrieval for RAG was implemented.