AI Mock Interview Platform: System Design at Scale
Design an AI mock interview platform for one million candidates: real-time voice loop, GPU model serving, stateful sessions, scoring, failover, and cost.
System Design
Scalability, architecture trade-offs, and the design questions asked in senior and staff interviews.
11 articles
Context Engineering Interview Guide: Prompts, Memory, Retrieval, Compression, and Context Windows
Context engineering explained for interviews: how to assemble prompts, memory, retrieval, and compression into a token budget the context window can actually hold.
AI Agent Security Interview Guide
Prepare an AI agent security interview answer covering prompt injection, excessive agency, tool abuse, identity, approvals, sandboxing, testing, and response.
How to Evaluate AI Agents: Task Success, Tool Accuracy, Regression Tests, and Human Review
A production guide to evaluating AI agents with end-state task success, tool-call accuracy, regression suites, human review, and release gates.
LLM Observability System Design with OpenTelemetry
Design production LLM observability with OpenTelemetry: trace tokens, latency, cost, tool calls, sampling, privacy, evaluation, and reliable alerts at scale.
Design a Production RAG System in 2026
Design a production RAG system with hybrid search, reranking, evaluation, caching, security, capacity planning, and deployment tradeoffs for interviews.
How to Design a Multi-Agent System: Orchestration, Memory, Tool Calling, and Failure Recovery
A production guide to multi-agent orchestration, scoped memory, safe tool calling, durable checkpoints, recovery, evaluation, and interview trade-offs.
MCP System Design: Secure Multi-Tenant Gateway
Design a secure multi-tenant MCP gateway in TypeScript with tenant isolation, OAuth, policy enforcement, routing, scaling, testing, and interview tradeoffs.
MCP vs A2A vs A2UI: A System Design Guide for AI Agent Architectures
Choose MCP, A2A, or A2UI by architecture boundary, with a protocol decision tree, TypeScript example, failure modes, and interview trade-offs.
AI Coding Interviews in 2026: What Senior Engineers Should Prepare For
Prepare for AI-assisted coding interviews in 2026: architecture judgment, agent supervision, debugging, verification, tests, and senior-level communication.
Top 10 Interview Questions and Answers for Senior Software Engineers at Infosys
10 Infosys Senior Software Engineer interview questions — URL shortener design, microservices, CAP theorem, API versioning — each with a model answer.
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