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Intermediate Artificial Intelligence 14 hours Featured

AI System Design Masterclass 2026: Build Scalable LLM, RAG, and Agentic Systems

A FAANG-grade, hands-on system design course for the LLM era — original case studies, reference architectures and an interview playbook.

6 Chapters
34 Lessons
636 min total
Free

Master AI system design — and the interviews that test it Engineering interviews and real production work now expect you to design AI systems, not just CRUD apps. This masterclass closes that gap with the same rigor used...

What you'll learn

  • Introduction to AI System Design
  • Foundations of Scalable AI Systems
  • Production AI Case Studies
  • Reliability, Safety and Compliance
  • Practice Problems
  • Solutions and Reference Architectures
Engr Mejba Ahmed

Engr. Mejba Ahmed

Course Instructor

100% Free

34 lessons · certificate · no card

AI System Design Masterclass 2026: Build Scalable LLM, RAG, and Agentic Systems

About This Course

Master AI system design — and the interviews that test it

Engineering interviews and real production work now expect you to design AI systems, not just CRUD apps. This masterclass closes that gap with the same rigor used inside FAANG architecture reviews, applied to real LLM, RAG, agentic, and multimodal systems.

You'll first build the foundations that every AI system rests on: the latency–throughput–cost triangle, LLM inference internals (tokens, context windows, KV cache), embeddings and ANN vector search, RAG architecture, caching strategies, guardrails and evaluation loops, streaming and backpressure, and cost optimization through routing, distillation, and quantization.

Then you apply them across 11 production case studies, including:

  • A ChatGPT-style conversational assistant
  • A production RAG system over 10M documents
  • A multimodal (text + image) search engine
  • A code assistant like GitHub Copilot
  • A multi-agent research workflow and a real-time AI voice agent
  • An LLM observability and evaluation platform
  • A compliance-safe healthcare assistant and an enterprise knowledge base with access control

You'll also cover reliability, safety, and compliance — hallucination mitigation, red-teaming, PII and privacy-preserving inference, SOC 2 / GDPR / HIPAA, and graceful degradation — then finish with reference architectures and a FAANG interview playbook.

Who this is for: engineers preparing for AI-focused system design interviews, or building LLM systems at scale and want a proven mental model. By the end you'll be able to whiteboard and defend a production AI architecture with confidence.

Who this course is for

Developers who know the basics and want production skills
Practitioners leveling up in Artificial Intelligence
Builders shipping real-world projects

Best if you're already comfortable with the basics and want production-grade depth.

Course Curriculum

6 chapters 34 lessons 636 min

2 lessons available to preview

1 Latency, Throughput and Cost — the AI Triangle
18min
2 LLM Inference 101: Tokens, Context Windows, KV Cache
20min
3 Embeddings, Vector Databases and ANN Search
17min
4 Retrieval-Augmented Generation (RAG) Architecture
22min
5 Caching Strategies for LLM Workloads
15min
6 Prompt Pipelines, Guardrails and Evaluation Loops
19min
7 Streaming, Backpressure and Token-Level Reliability
14min
8 Cost Optimisation: Routing, Distillation, Quantisation
18min
1 Design a ChatGPT-Style Conversational Assistant
24min
2 Design a Production RAG System Over 10M Documents
26min
3 Design a Multimodal Search Engine (Text + Image)
22min
4 Design a Code Assistant Like GitHub Copilot
25min
5 Design a Multi-Agent Research Workflow
23min
6 Design a Real-Time AI Voice Agent
24min
7 Design an LLM Observability and Evaluation Platform
21min
8 Design an AI Image Generation Service at Scale
22min
9 Design a Personalised Recommendation Engine With LLMs
20min
10 Design a Compliance-Safe Healthcare AI Assistant
24min
11 Design an Enterprise AI Knowledge Base With Access Control
22min
1 Hallucination Mitigation Patterns
18min
2 Red Teaming and Adversarial Testing
17min
3 Privacy-Preserving AI: PII, Tokenisation and On-Device Inference
16min
4 Compliance: SOC 2, GDPR and HIPAA for AI Systems
19min
5 Fallback, Circuit Breakers and Graceful Degradation
16min
1 Mini-Brief — Design a Slack-Style AI Search
10min
2 Mini-Brief — Design an AI Customer-Support Triage System
10min
3 Mini-Brief — Design a Multi-Tenant LLM Gateway
11min
1 Reference Architecture: Production RAG
22min
2 Reference Architecture: Agentic Workflow Orchestrator
21min
3 Reference Architecture: Multi-Tenant LLM Gateway
19min
4 Career Track — How to Crack AI System Design Interviews at FAANG
18min

Your Instructor

Engr Mejba Ahmed — AI School instructor

Engr. Mejba Ahmed

AI Developer · Software Engineer · Entrepreneur

I build production AI systems and full-stack applications for a living, and I teach the exact workflows I use in real projects — not theory. Over 8+ years I've shipped 1,500+ projects, founded Ramlit Limited, and now build agentic AI tooling with Claude, GPT and open models. AI School is where I share that hands-on playbook so you can build and ship real work.

8+ years in production 1,500+ projects shipped Founder, Ramlit Limited

FAQ

Frequently asked questions

Yes. AI School is Open Access — enter your email once to unlock all 34 lessons instantly. No credit card and no trial.

Best if you're already comfortable with the basics and want production-grade depth.

Yes. Complete every lesson to earn a verifiable certificate of completion you can add to your LinkedIn profile and CV.

Forever. Learn at your own pace on any device — your progress is saved automatically as you go.

Engr. Mejba Ahmed — an AI developer and software engineer with 8+ years of hands-on production experience.

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Engr Mejba Ahmed

Engr Mejba Ahmed

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