Module 1

Blog 1 — OpenAI: Scaling PostgreSQL to 800M ChatGPT Users

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Module 2

Blog 2 — Uber: Scaling Kafka to 1.1 Trillion Messages/Day

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Module 3

Blog 3 — Netflix: How We Handle 80M Concurrent Streams

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Module 4

Blog 4 — Stripe: How We Build Idempotent APIs

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Module 5

Blog 5 — Discord: How We Store Billions of Messages

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Module 6

Blog 6 — Uber: Rebuilding the Payment Platform

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Module 7

Blog 7 — Airbnb: Monolith to Microservices

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Module 8

Blog 8 — LinkedIn: Scaling to 5M QPS Using Bloom Filters

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Module 9

Blog 9 — Cloudflare: How We Handle 100B DNS Queries/Day

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Module 10

Blog 10 — Meta: Designing the Social Graph

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Module 11

Blog 11 — Twitter: Timelines at Scale

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Module 12

Blog 12 — Figma: How Multiplayer Technology Works

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Module 13

Blog 13 — Dropbox: How We Scaled Storage

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Module 14

Blog 14 — Redis: Architecture Internals

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Module 15

Blog 15 — Shopify: Surviving Flash Sales

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Module 16

Blog 16 — LinkedIn: Building Real-Time Search

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Module 17

Blog 17 — Uber: Distributed Tracing with Jaeger

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Module 18

Blog 18 — Amazon: Dynamo — Highly Available Key-Value Store

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Module 19

Blog 19 — Google Spanner: Globally Distributed SQL

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Module 20

Blog 20 — Instagram: Scaling to 1 Billion Users

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Module 21

Blog 21 — Google: MapReduce - Simplified Data Processing on Large Clusters

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Module 22

Blog 22 - Google: Bigtable : A Distributed Storage System for Structured Data

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Portfolio

© 2026 QUBITS OF DPK

© 2026 QUBITS OF DPK — MADE FOR CURIOUS ENGINEERS