Skip to content
View kumarharsh13's full-sized avatar
🎯
🎯
8 followers · 1 following

Achievements

Achievement: StarstruckAchievement: Pull Shark

Achievements

Achievement: StarstruckAchievement: Pull Shark

Block or report kumarharsh13

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
kumarharsh13/README.md

Harsh Kumar

Technical Lead · Backend Systems · Distributed Architecture

LinkedIn    Email    GitHub


I build and own distributed FinTech platforms that process millions of operations daily. Currently leading lending operations across 3 international markets at Yabx (Comviva) — scaled the customer base from 1.4 lakh to 20 lakh (14x) with significant growth in disbursements and repayments.

I designed a Multi-Bank Routing Interceptor — a stateless proxy that routes traffic to isolated bank systems, enabling multi-bank lending without touching the existing platform. Sole architect. 2,157 tests. 95% coverage.

Currently learning Go and building toward platform architecture.



   Languages

     Ruby Go Python JavaScript C++

   Frameworks & Runtime

     Rails Node.js Express Sidekiq FastAPI

   Data & Messaging

     PostgreSQL Redis MongoDB RabbitMQ

   DevOps & Tools

     Docker Git Postman Swagger Jira Confluence



   Things I've Built

Project Description Scale
🔀 Multi-Bank Routing Interceptor Stateless HTTP proxy routing API/USSD traffic to isolated bank LMS instances 1M+ records · 200–500x faster · 95% coverage
⚡ Job Orchestration Platform Distributed processing with partitioned PostgreSQL and async workers 12M+ jobs/day · 40% throughput ↑
💰 Reconciliation Pipeline Idempotent transaction matching with self-healing recovery 300K+ txns/day
🔄 Credit Rule Engine Parallel processing with workload partitioning 9 hrs → 2–3 hrs
🚀 Async Allocation Service Decoupled offer generation from request cycle 2 min → 10 sec · 12x


   Architecture & Patterns

Distributed Systems · Event-Driven Architecture · Idempotent Processing · Multi-Tenant Routing · Graceful Degradation · Database Partitioning · Clean Architecture · API Gateway Patterns · System Design



   Reading

     📖   Designing Data-Intensive Applications — Martin Kleppmann
     📖   System Design Interview Vol. 1 & 2 — Alex Xu



Stats     Languages



Streak



Views



Built systems that scale. Learning to build them better.

Pinned Loading

  1. instagram-clone-fullstack instagram-clone-fullstack Public

    This project is a fully-functional social media platform built with a modern full-stack architecture. It mimics the core features of Instagram, allowing users to engage with content, interact with …

    JavaScript 6 3

  2. Food-Ordering-Website Food-Ordering-Website Public

    Developed a full stack web application project for food delivery. For front-end design, the project makes use of HTML, CSS, and the fundamentals of (Javascript & Bootstrap). Combining the ExpressJS…

    EJS 50 22

  3. add-to-basket add-to-basket Public

    Add to Basket is a React-based cart application designed to practice and implement essential cart functionalities. This project focuses on key features such as adding, deleting, and updating items …

    JavaScript

  4. N-Queen-Puzzle-Game N-Queen-Puzzle-Game Public

    N-Queen Puzzle Game is a puzzle game based on the 8-Queen Puzzle/Problem. It is a game in which we can solve the N Queen Problem for a grid or a chessboard of size N * N.

    JavaScript

  5. Course-Management-System Course-Management-System Public

    Created a Course Management System using Rails as framework.

    Ruby

  6. Transaction-Reconcillation-Engine Transaction-Reconcillation-Engine Public

    Python