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Launching Stuff
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snehasishroy/README.md

🚀 Hello World ! I'm Snehasish Roy

Lead Engineer with a decade of turning coffee into code.

What do I do?

Currently leading the Storage pod at PhonePe, where we're revolutionizing fintech in India. Previously led the Scheduler Pod, because one technical challenge is never enough!

Projects That Keep Me Awake

Clockwork: Distributed Job Scheduler at PhonePe

Built a Distributed, Durable, and Fault-Tolerant Task Scheduler that orchestrates 2 billion daily jobs at PhonePe. Read more at PhonePe Tech Blog.

You can also go through the below podcast video in which I deep dive on the architecture of Clockwork.

Podcast

Docstore: Document Store at PhonePe

Designed an Object Store managing ~7 Billion documents at Petabyte Scale. You can find our war stories at FOSDEM 2023.

Star History of my most starred repo

Alt text

Personal Tech Blog

I write about system design and distributed systems on my blog. If you're interested in scaling systems or handling distributed consensus, check out my articles at snehasishroy.com

Experience

Google (SWE3)

Led the Map Moderation Platform team, where I built a MapReduce Pipeline for analyzing UGC moderation decisions. Think of it as keeping Google Maps clean and tidy!

Amazon (SDE2)

Made shopping carts faster (50ms @ p90) on the Tier1 Cart Team. Because every millisecond counts when you're buying during sales!

Goldman Sachs (Technology Associate)

Turbocharged Risk Infrastructure platforms by using In-Memory Relational Database.

Morgan Stanley (Technology Associate)

Optimized Risk Infrastructure platforms by using an async read-transform-write framework.

Education

Graduated from Indian Institute of Information Technology, Allahabad with B.Tech in IT (Honours)

Ping Me!

Always excited to discuss Distributed systems (and their distributed problems)

Let's connect on LinkedIn

P.S. If the dinosaur below isn't running, that's when you know production is down

Coding Dino

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  1. leetcode-companywise-interview-questions leetcode-companywise-interview-questions Public

    Contains latest company wise questions of LeetCode as of Feb 2026.

    Java 3.6k 794

  2. TaskScheduler TaskScheduler Public

    Reference guide on building a scalable, distributed, fault-tolerant, task scheduler platform using Zookeeper in Java.

    Java 11 4

  3. CodeItCompiler CodeItCompiler Public

    Java

  4. design-patterns-explained design-patterns-explained Public

    Design Patterns explained in 2 minutes

    Java 2 3

  5. distributed-job-scheduler distributed-job-scheduler Public

    Persistent and Distributed Job Scheduler in Java

    Java