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PHASE 18 CURRICULUM

Real-World Production Architectures

Progress0 of 20 (0%)

Explore the engineering internals and battle-tested distributed patterns that power the world's largest technology platforms.

Key Architectural Domains & Syllabus
Phase 18 provides deep architectural retrospectives across 20 real-world systems: Netflix's cloud-native microservices and Open Connect CDN; Amazon's Bezos Mandate and masterless Dynamo storage; Uber's DOMA and H3 hexagonal geospatial indexing; WhatsApp's 2.8M concurrent Erlang/FreeBSD connection switches; Instagram's logical PostgreSQL sharding and 64-bit Snowflake IDs; YouTube's Vitess MySQL proxy and custom VCU hardware transcoding; Meta's TAO distributed graph store; Twitter's real-time hybrid fan-out timeline architecture; LinkedIn's creation of Apache Kafka; Google Search PageRank and document-partitioned in-memory inverted indexes; Google Maps S2 Hilbert curve routing; Dropbox's Magic Pocket exabyte erasure coding; Airbnb's Monorail-to-microservices Strangler Fig migration with Debezium CDC; Discord's Elixir and ScyllaDB C++ rewrite; Slack's Flannel edge caching proxy; Stripe's idempotency state machine and double-entry bookkeeping ledger; Spotify's sub-200ms audio streaming and P2P evolution; Zoom's custom UDP Forward Error Correction and Multimedia Routing (SFU) architecture; DoorDash/Swiggy 3-sided marketplace dispatching with kitchen prep time prediction; and Zerodha/Robinhood stock ticker engines powered by LMAX Disruptor lock-free ring buffers and packed binary WebSockets
20 In-Depth Topics ~160 Minutes Reading Time Interactive Quizzes & Assessments

All Topics in Phase 18

0 of 20 completed

Deconstruct Netflix's AWS cloud migration: 1,000+ microservices, Zuul edge routing, Hystrix/Resilience4j fault tolerance, Titus container management, and Open Connect CDN.

12 min read•3 Quiz Questions

Explore Amazon's 2002 Bezos Mandate: Service encapsulation, Two-Pizza teams, the seminal Dynamo paper (2007), and DynamoDB single-digit millisecond latency.

12 min read•3 Quiz Questions

Manage microservice sprawl: Domain-Oriented Microservice Architecture (DOMA), Domains/Layers/Gateways, Schemaless sharding, and H3 geospatial dispatching.

12 min read•3 Quiz Questions

Scale with extreme engineering efficiency: 50 engineers serving 900M users, FreeBSD kernel tuning, Erlang BEAM actor model, and ephemeral message store.

12 min read•3 Quiz Questions

Scale a Django monolith: Sharding PostgreSQL across thousands of logical shards, custom 64-bit ID generation, Memcached caching tiers, and async Celery workers.

12 min read•3 Quiz Questions

Deliver exabytes of video: Video ingest pipeline, DAG transcoding workflows, custom VCU silicon, Vitess (sharded MySQL), and Google Global Cache (GGC).

12 min read•3 Quiz Questions

Query the social graph: Objects & Associations, TAO read-through cache tiers, Leader-Follower cache consistency, and MySQL persistent backing stores.

12 min read•3 Quiz Questions

Architect real-time social streams: Timeline service, Tweet ingestion, Fan-out on Write vs Read, Redis In-Memory timelines, and Snowflake IDs.

12 min read•3 Quiz Questions

Unify enterprise data pipelines: Point-to-point integration gridlock, Kafka log-centric architecture, sequential disk I/O, zero-copy networking, and the Venice serving tier.

12 min read•3 Quiz Questions

Search the entire web: Googlebot distributed crawler, Inverted Index shard distribution, PageRank link graph scoring, and sub-50ms query serving.

12 min read•3 Quiz Questions

Map the physical world: Hilbert Space-Filling curves, Google S2 spherical geometry (Cell IDs), Quad-Trees, and routing algorithms (Contraction Hierarchies / A*).

12 min read•3 Quiz Questions

Sync exabytes of user files: Client chunking engine, SQLite local metadata, Notification server (long-polling/WebSockets), and custom Magic Pocket hardware block storage.

12 min read•3 Quiz Questions

Deconstruct Airbnb's evolution: The Monorail Ruby on Rails monolith, Strangler Fig SOA migration, Debezium CDC pipelines, and Elasticsearch listing search.

12 min read•3 Quiz Questions

Power millions of simultaneous voice/text channels: Elixir BEAM processes, Rust NIF memory safety, migrating from Cassandra to ScyllaDB, and WebSocket gateway scaling.

12 min read•3 Quiz Questions

Scale workplace messaging: Channel membership graphs, Flannel edge caching proxy, real-time message bus, and Vitess database sharding.

12 min read•3 Quiz Questions

Process billions with zero financial errors: Idempotency keys, atomic state machines, double-entry bookkeeping ledgers, and dynamic acquirer routing.

12 min read•3 Quiz Questions

Stream audio to millions: The Spotify Squad model, Ogg Vorbis chunking, migrating from P2P to CDN edge streaming, and Cassandra/Bigtable playlist storage.

12 min read•3 Quiz Questions

Connect millions of simultaneous video callers: Custom UDP transport protocols, Multimedia Routing nodes (MMRs), Dynamic quality downgrading, and global edge POPs.

12 min read•3 Quiz Questions

Solve the 3-sided marketplace: Real-time driver GPS tracking, kitchen prep time prediction, multi-order batching engines, and live WebSocket map animation.

12 min read•3 Quiz Questions

Process millions of market ticks: Stock exchange binary feeds, LMAX Disruptor lock-free ring buffers, WebSocket binary broadcast fleets, and sub-millisecond order routing.

12 min read•3 Quiz Questions