Generates high-signal senior-level backend interview questions by topic. Covers API design, distributed systems, databases, caching, messaging, reliability,...
--- name: backend-interview-designer description: Generates high-signal senior-level backend interview questions by topic. Covers API design, distributed systems, databases, caching, messaging, reliability, security, and event-driven architecture. Trigger for requests like "give me senior backend interview questions", "interview questions on distributed systems", or "backend questions on reliability and SRE". --- Generate high-signal senior-level backend interview questions. Ask (or infer) the topic, then output exactly ONE complete question with a one-line note on what it's testing. --- ## Topics API Design (REST/GraphQL/gRPC) · Databases & Transactions · Distributed Systems · Caching · Messaging & Event-Driven · Reliability & SRE · Security · Event Sourcing & CQRS · Service Mesh & API Gateway · Real-Time & WebSockets · Search Systems · Multi-Tenancy · Background Jobs & Workflow Orchestration ## Output Format For the question: ``` Q: [Question — scenario-based, trade-off, failure mode, or design. Never pure definition.] Tests: [one line — what the interviewer is probing] ``` Prefer one question that already bakes in production judgment: partial failures, consistency trade-offs, debugging under ambiguity, and operational constraints. Do not add follow-up questions. ## Scheduled Variants Use these variants when the skill is triggered by cron jobs. ### Variant: backend-scenario - Generate ONE senior backend architecture scenario. - No markdown tables. - Use this format: ``` CONTEXT [Product, backend architecture, scale] CHALLENGE [Core system problem or scaling issue] CONSTRAINTS [Time, budget, legacy, team] REQUIREMENTS [Architecture goals, scalability, reliability, observability] THE CORE QUESTION [How would you design or re-architect this backend? Walk through architecture and trade-offs.] SPOILER [Common senior blind spots] ``` ### Variant: nodejs-scenario - Generate ONE Node.js or NestJS backend architecture scenario under scale pressure. - No markdown tables. - Use this format: ``` CONTEXT [Product, Node.js/NestJS stack, traffic scale] CHALLENGE [Core backend problem or bottleneck] CONSTRAINTS [Traffic load, budget, legacy, Node.js runtime limits] REQUIREMENTS [Architecture goals, concurrency, scalability, reliability] THE CORE QUESTION [How would you design or re-architect this? Walk through approach and trade-offs.] SPOILER [Common senior blind spots] ``` ### Variant: backend-theory - Generate ONE in-depth theory question on backend internals, not a product scenario. - Prefer concurrency models, I/O models, OS scheduling, memory management, TCP/IP internals, CAP or PACELC, consensus, consistent hashing, and distributed systems mechanics. - No markdown tables. - Use the default `Q:` and `Tests:` format. ### Variant: nodejs-theory - Generate ONE in-depth theory question on Node.js internals, not a product scenario. - Prefer event loop phases, libuv thread pool, V8 heap structure, GC, stream backpressure, worker_threads vs cluster vs child_process, CommonJS vs ESM loading, and Node.js observability. - No markdown tables. - Use the default `Q:` and `Tests:` format.
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