AI can generate a chat backend in one prompt. Whether it survives ten thousand people typing at once is a judgment call. This course builds that judgment: which of the seven building blocks a low-latency, message-driven system needs. You learn it on how Slack, Discord, and WhatsApp were designed.
Apply the seven building blocks from Course I to systems where milliseconds matter. You will study how Slack, Discord, and WhatsApp were designed across 6 progressive case studies, from social feeds to AI chatbots to video conferencing, so the patterns behind real-time messaging stop being a mystery.
7-day money-back guarantee · Lifetime access
Prerequisites: Course I & II (required)
Course III explores real-time and communication systems with progressive complexity. You'll master patterns from eventual consistency to hard real-time constraints.
Building Blocks:
+
for news feed generation
Learn: Asynchronous processing patterns, feed generation strategies, notification delivery architectures
Note: We focus on general feed generation patterns and notification architectures, not specific message queue implementations.
Building Blocks:
+ real-time patterns + conflict resolution
Learn: Synchronization strategies, concurrent editing architectures (Google Docs-style patterns)
Note: We focus on synchronization patterns and conflict resolution strategies, not specific protocol implementations.
Building Blocks:
+
+ presence patterns
Learn: Message routing architecture, delivery guarantee strategies, presence design (Slack, WhatsApp-style systems)
Note: We focus on messaging architecture patterns and delivery strategies, not specific messaging protocols or services.
Building Blocks:
+
+
Learn: Streaming response patterns, context management strategies, AI-enhanced real-time processing
Note: We focus on conversational architecture and AI integration patterns, not specific LLM APIs or vector database tools.
Building Blocks:
+ real-time streaming patterns
Learn: Hard real-time constraint strategies, adaptive quality patterns (Zoom-style architectures)
Note: We focus on real-time multimedia architecture and latency strategies, not specific streaming protocol implementations.
Building Blocks:
+
Learn: Low-latency design patterns, high-availability strategies, global distribution architectures
Note: We focus on performance optimization patterns and availability strategies, not specific caching implementations or distribution services.
There's plenty of free content on system design. Here's why this is different.
The seven building blocks are free to learn. Knowing which ones hold up under real-time load is the part that takes reps, and reps come two ways. You study how Slack, Discord, and WhatsApp were designed across six progressive case studies. Then you get hands-on practice designing your own systems, in graded designs and a three-part challenge where you make every latency and delivery decision yourself, with no walkthrough to lean on.
Free resources teach you the concepts. They do not tell you whether you applied them correctly.
Here you submit your designs and get specific feedback on the decisions you made: which ones held up, and which ones a senior engineer would have questioned. In real-time systems, those are exactly the decisions that separate a demo from something that does not buckle when everyone shows up at once.
20+ years building commercial software at scale.
10+ years teaching at the university level.
Most practitioners can't teach. Most teachers haven't built.
This course is designed by someone who's done both.
What others charge:
What this course series gives you:
Start with Course I for $99. Build your foundation first.
Content, labs, assessments, and challenges are live. $35 off until the videos are recorded.
Early-bird discount while videos are in production
✓ Lifetime access ✓ 7-day money-back guarantee
Course III requires completing Courses I & II first.
Course I is self-paced. Start any time, take it on your schedule.
7-day money-back guarantee on Course I
Real-time systems power modern collaboration: Slack's messaging, Discord's voice chat, Google Docs' collaborative editing, Zoom's video conferencing. Understanding real-time patterns gives you architectural fluency in communication and collaboration systems.
WebSocket patterns: Bi-directional real-time communication, connection management, presence systems
Message delivery: Routing algorithms, delivery guarantees, read receipts, typing indicators
Concurrent editing: Operational transformation, conflict resolution, synchronization strategies
Low-latency optimization: Sub-millisecond responses, geographic distribution, caching strategies
Hard real-time constraints: WebRTC patterns, adaptive quality, multimedia streaming
These patterns apply whether you're building a chat app, collaborative editor, video platform, or AI assistant. Master real-time systems, and you'll have architectural expertise in communication and collaboration domains.
Systems Thinking in the AI Era is a 4-course comprehensive transformation program. Each course builds on the previous, developing complete pattern recognition across all system domains.
Master the 7 building blocks + 3 external entities. Develop pattern recognition, trade-off analysis, and architectural decision-making.
Apply building blocks to Instagram, Netflix, YouTube patterns. Master read-heavy workloads, caching strategies, and global content delivery.
Learn Slack, Discord, WhatsApp patterns. Master real-time messaging, WebSocket patterns, presence systems, and low-latency communication.
Master Stripe, Shopify, Salesforce patterns. Learn payment processing, transaction handling, compliance automation, and enterprise integration.
Course III will be available soon. Build your foundation with Courses I and II first to be ready for advanced real-time system patterns.
Start with Course ISequential learning path ensures deep mastery of system thinking
