GK.
Software Engineer · Backend & AI Systems

Gowtham Korupolu

Building high-throughput backend systems, distributed microservices, and AI-powered applications. Currently building Aarambha(Duolingo for finance).

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Selected Work

Projects I've built

01AI-native RAG pipeline for document Q&A

DocuTalk

A full-stack 'chat with PDF' application. Utilizes a Retrieval-Augmented Generation (RAG) architecture with Pinecone vector embeddings and semantic search to deliver real-time, context-aware responses via LangChain and OpenAI.

Full RAG pipelineSemantic vector search
React.js·Node.js·Express.js·MongoDB·Pinecone·LangChain·OpenAI
02High-performance MERN blogging platform

BlogHere

A feature-rich blogging platform utilizing JWT for robust authentication and React TanStack Query for efficient cache management. Optimized frontend performance and reduced API load by 40% through intelligent caching strategies.

Optimized API cachingSecure JWT Auth
React.js·Node.js·Express.js·MongoDB·JWT·TanStack Query·MUI
03Secure fintech application for money transfers

Instant Transfer

A secure application for fast money transfers featuring real-time balance updates and user search. Implemented robust data validation using Zod and ensured high transaction integrity with secure backend processing.

Real-time updatesZod validation
React.js·Node.js·Express.js·MongoDB·JWT·Tailwind CSS·Zod
04High-performance Instagram content downloader

InstaSave

A utility web application that integrates with the InstaSaver API to download Instagram content via URL. Features a clean, responsive interface built with Tailwind CSS and optimized for seamless content retrieval.

API IntegrationFast Downloads
React.js·Node.js·Express.js·Tailwind CSS
Career

Experience

Phenom People Pvt Ltd

Jun 2025 – Present
Product Development Engineer I·Hyderabad
  • Architected multi-tenant voice platform (Spring Boot + Twilio), 2,000+ calls/month, <4% failure
  • Led Java 8→17 migration across microservices, upgraded Helm charts and build pipelines
  • Re-engineered sync APIs to async event-driven (Apache Kafka), improving throughput and resilience

Aarambha (Freelance)

Feb 2025 – Present
Full Stack Developer·Remote
  • Risk-profile scoring engine (Fastify/Node.js) for 2,300+ active users
  • Stateless asymmetric JWT auth infrastructure for mobile and web APIs
  • React Native screens with Ignite/MobX for finance-learning app

Kodem Legal Technologies

Dec 2024 – Jun 2025
Software Development Intern·Hyderabad
  • Automated PDF form workflows (pdftk, qpdf), reducing legal ops processing time
  • Spring Boot backend with gRPC and MVC architecture
  • Payment cancellation sync logic ensuring distributed transaction consistency

Perky Digital Pvt Ltd

Feb 2024 – Apr 2024
Software Development Intern
  • Flexible data management system with MongoDB, regex/API scraping
  • OpenAI NLP API integration for sentiment analysis
  • Excel export feature with 94% accuracy across 100+ records
Stack

Technical Expertise

Backend

Spring BootNode.jsExpress.jsFastifygRPCJavaJavaScript

Data & Messaging

MongoDBPostgreSQLPrismaFirebaseApache KafkaTwilio SDK

Frontend

React.jsReact NativeNext.jsTailwind CSSTypeScript

AI / ML

Hugging FaceRAGVector EmbeddingsOpenAI APIMistral

Cloud & DevOps

AWS (EC2)DockerGitHelmn8n

Architecture

REST APIsEvent-DrivenMicroservicesMVC
Contributions