Engineering domain

System Design

End-to-end architecture, tradeoffs, and practical case studies.

78 linked concepts~2 hr 54 min reading estimate

Mobile System Design

Mobile System Design and Engineering Leadership

Practice mobile system design, reliability, delivery, technical leadership, and engineering tradeoff questions.

~15 min reading

Mobile Scalability & Reliability

Swift Concurrency 6.4 — Quick Reference

Review Swift concurrency, structured tasks, actor isolation, Sendable, cancellation, and Swift 6.4 updates.

~14 min reading

Architecture Decision-Making & Tradeoffs

Architecture and SOLID

Apply SOLID and architecture patterns with realistic Swift examples, dependency inversion, testing seams, and tradeoffs.

~12 min reading

Mobile Tech Lead & Architecture

Mobile Tech Lead and Architecture

Explore mobile architecture, modularization, technical ownership, leadership practices, and cross-platform decisions.

~14 min reading

Backend Engineering & Distributed Systems

Backend Engineering and Distributed Systems

Understand backend APIs, data correctness, authentication, caching, distributed reliability, and mobile service boundaries.

~28 min reading

AI Engineering & Orchestration

AI Engineering and Orchestration

Design LLM applications, retrieval, model routing, agent orchestration, evaluation, and production AI workflows.

~21 min reading

AI Coding Tools and MCP

Understand coding-agent workflows, Claude Code, Codex, reusable instructions, tools, and MCP security.

~8 min reading

Token Optimization and Context Engineering

Manage model context, token budgets, retrieval, caching, routing, and cost-quality tradeoffs.

~20 min reading

AI Security and Agent Governance

Secure AI agents with trust boundaries, prompt-injection controls, least privilege, validation, and governance.

~7 min reading

Interview Paths: Mobile, Backend, and AI Systems

Practice short role- and level-based interview responses, coding prompts, code reviews, and separated solutions.

~22 min reading

Architecture Case Studies

Architecture Case Studies

Work through illustrative architecture case studies for banking, AI, mobile, orchestration, RAG, and backend systems.

~13 min reading