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karankap00r/README.md

Hey, I'm Karan 👋

Staff Software Engineer · Infrastructure & Product Engineering

I build and scale systems that process millions of orders daily at Zepto — one of India's fastest-growing quick-commerce companies. I lead infrastructure platform development while also driving engineering across 4 product verticals spanning finance, procurement, seller experience, and catalog management.

I love designing systems and studying engineering concepts in depth.

LinkedIn Medium Google Scholar HackerEarth


What I Do

🏗️ Infrastructure Engineering

I operate at the intersection of databases, distributed systems, and developer tooling — focused on making infrastructure reliable, cost-efficient, and easy to operate at scale across a 70+ service monorepo.

  • Large-Scale Migrations and Building platform support around Inhouse Hosted Databases — Orchestrating zero-downtime MongoDB migrations across Zepto services from Atlas to self-hosted infrastructure
  • Cost Optimization — Driving infrastructure cost reduction through storage lifecycle strategies, database consolidation, and compute right-sizing

🚀 Product Engineering Leadership

I lead engineering for 4 product verticals that power critical business operations:

  • Finance & Compliance — Systems handling invoicing, GST compliance, and financial reconciliation at scale
  • FnV Procurement — Procurement infrastructure for Zepto's fruits & vegetables supply chain
  • Brand Seller Experience — Tooling and platforms enabling brand sellers to operate on the Zepto marketplace
  • Catalog Management System — The backbone for managing product catalog data across the platform

A Few Things I've Built

🔧 mongodb-facade — A Go library for zero-downtime MongoDB migrations with cluster-aware connection management, automatic failover, and gradual traffic shifting

📉 S3 Cost Optimizer — Lifecycle management strategies that reduced cost from $41K/month to under $1K

Tech I Work With

Languages        Go · Python · Shell
Databases        MongoDB · DynamoDB
Cloud & Infra    AWS (EC2, S3, ECS, Lambda) · Terraform
Messaging        Kafka · SQS
Observability    Datadog · Prometheus · Grafana
Tools            Docker · Git · GitHub Actions

Writing & Research

I write about software engineering at scale, database internals and anything I want to learn deeply on Medium, and have published academic research — check out my Google Scholar profile.

Get in Touch


Pinned Loading

  1. employee_portal employee_portal Public

    Workday like Employee Portal

    Go

  2. prototypes prototypes Public

    Single place for all prototypes and things I want to learn deeply about