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@yashveer

Yashveer Singh

@yashveer·India·Joined January 2025

Backend Engineer | Building Scalable APIs, Microservices & Distributed Systems

About

Backend Software Engineer with 2 years of experience building scalable backend systems, microservices, and RESTful APIs using Java, Spring Boot, Node.js, and Python. Experienced in Redis, Kafka, RabbitMQ, PostgreSQL, MongoDB, and distributed systems, with a focus on building reliable, high-performance services.

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Yashveer Singh's blogs

SCALE FROM ZERO TO MILLIONS OF USERSsystemdesignsfztmu.hashnode.dev3 posts

Back-of-the-Envelope Estimationbackoftheenvelopeestimation.hashnode.dev1 post

Migrate Hardware LB to a Software LBharhware-to-software-lb-migration.hashnode.dev1 post

RATE LIMITERratelimiter.hashnode.dev1 post

Design Consistent Hashingconsistenthashing.hashnode.dev1 post

About

Backend Software Engineer with 2 years of experience building scalable backend systems, microservices, and RESTful APIs using Java, Spring Boot, Node.js, and Python. Experienced in Redis, Kafka, RabbitMQ, PostgreSQL, MongoDB, and distributed systems, with a focus on building reliable, high-performance services.

Available for

Nothing here yet.

Yashveer Singh's blogs

SCALE FROM ZERO TO MILLIONS OF USERSsystemdesignsfztmu.hashnode.dev3 posts

Back-of-the-Envelope Estimationbackoftheenvelopeestimation.hashnode.dev1 post

Migrate Hardware LB to a Software LBharhware-to-software-lb-migration.hashnode.dev1 post

RATE LIMITERratelimiter.hashnode.dev1 post

Design Consistent Hashingconsistenthashing.hashnode.dev1 post

Articles Comments

Recently published

YSYashveer Singhinsystemdesignsfztmu.hashnode.dev·Aug 17 · 8 min read

FastAPI Explained: The Complete Guide for Developers

If you've touched a Python backend in the last few years, you've almost certainly run into FastAPI. It has quietly become the default choice for building APIs in Python — from startups shipping micros

YSYashveer Singhinsystemdesignsfztmu.hashnode.dev·Aug 8 · 20 min read

Apache Kafka — A Complete Guide from Zero to Advanced

Apache Kafka is one of the most important technologies in modern backend and distributed systems. If you work with microservices, event-driven architecture, real-time data, fintech, e-commerce, or dis

YSYashveer Singhinwhatsapparchitecture.hashnode.dev·Mar 13 · 7 min read

How WhatsApp Handles 100 Billion Messages a Day — The Architecture Behind the Magic

"We had 50 engineers. We had 900 million users. And it worked." — WhatsApp Engineering Team If you've ever wondered how WhatsApp delivers your "Good Morning 🌅" to your mom in under a second — across

YSYashveer Singhinnode-single-threaded.hashnode.dev·Feb 26 · 6 min read

Node.js: Single-Threaded, Yet Handles Thousands of Requests — Here’s Exactly How

“How can something single-threaded handle 10,000 concurrent requests?” — Every developer’s first Node.js confusion. By the end of this article, you won’t just understand the answer — you’ll be able t

YSYashveer Singhinmercurialvsgitexplained.hashnode.dev·Dec 28, 2025 · 5 min read

Mercurial Explained: Why Facebook Used It, Its Features, Pros & Cons — and How It Differs from Git.

Introduction When people talk about version control today, Git dominates the conversation.But Git is not the only distributed version control system — and it is not always the best fit for every scale. Mercurial is a distributed version control syste...