Newly published lessons, references, interview banks and roadmaps from Engineering Vault.https://dineshbyte.github.io/en-ushttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/pre-retrieval-and-advanced-rag.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/pre-retrieval-and-advanced-rag.htmlYour bar: transform the query before you retrieve, match the retrieval structure to the question shape, and know when to graduate from a static pipeline to a self-correcting agentic loop.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/agent-runtime-and-context.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/agent-runtime-and-context.htmlYour bar: explain to an interviewer how an agent runtime orchestrates an LLM loop, why context engineering often matters more than model choice, and how the…Sun, 21 Jun 2026 00:00:00 GMTLessonAI Agentshttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/agent-systems-engineering.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/agent-systems-engineering.htmlHow production AI agents actually execute work: planning, state, execution engines, loop control, failure recovery, orchestration, long-running tasks, cost, and observability — from first principles.Sun, 21 Jun 2026 00:00:00 GMTLessonAI Agentshttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/reference/agent-architecture-review.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/reference/agent-architecture-review.htmlAI agent architecture-review checklist: seven review lenses, trust boundaries, production-readiness checks, common failure modes, and red flags for the design-review chair.Sun, 21 Jun 2026 00:00:00 GMTReferenceAI Agents · Referencehttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/reference/agents-cheat-sheet.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/reference/agents-cheat-sheet.htmlOne-page AI agents cheat sheet: the agent stack, core definitions, mental models, archetypes, buzzword-to-engineering translations, and ten memory rules to recite.Sun, 21 Jun 2026 00:00:00 GMTReferenceAI Agents · Referencehttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/ai-agents-from-first-principles.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/ai-agents-from-first-principles.htmlAI agents from first principles: how LLMs, tools, the agent loop, planning, and MCP fit together — build the full stack from memory and tell real capability from hype.Sun, 21 Jun 2026 00:00:00 GMTLessonAI Agentshttps://dineshbyte.github.io/engineering-learning-hub/ai-evaluation/lessons/evaluation-fundamentals-offline-online.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-evaluation/lessons/evaluation-fundamentals-offline-online.htmlWhy evaluation is the real moat: the offline vs online split, golden sets, LLM-as-judge scoring, and the eval loop that turns failures into a regression suite.Sun, 21 Jun 2026 00:00:00 GMTLessonAI Evaluationhttps://dineshbyte.github.io/engineering-learning-hub/ai-security/lessons/ai-threat-model-and-prompt-injection.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-security/lessons/ai-threat-model-and-prompt-injection.htmlWhy AI security is different: the prompt is not a trust boundary. Direct vs indirect prompt injection, threat-modeling an LLM app, and where the real control belongs.Sun, 21 Jun 2026 00:00:00 GMTLessonAI Securityhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/authentication-and-authorization.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/authentication-and-authorization.htmlPractice API authentication and authorization with 49 senior and staff REST interview questions on OAuth2, JWT, sessions, scopes, RBAC, and token security.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/authentication-and-authorization.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/authentication-and-authorization.htmlAPI authentication and authorization: AuthN vs AuthZ, OAuth2 flows, JWT vs opaque tokens, scopes and RBAC, and securing REST endpoints against common attacks.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/api-design-interview-framework.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/api-design-interview-framework.htmlA REST cheat sheet on the six architectural constraints, the Richardson maturity model, HATEOAS, and HTTP method semantics — quick reference for API interviews.Sun, 21 Jun 2026 00:00:00 GMTReferenceREST API Mastery · Referencehttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/error-design-rate-limiting-observability.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/error-design-rate-limiting-observability.htmlAPI error design, rate limiting, and observability: consistent error contracts (RFC 7807), 429 with Retry-After, token-bucket throttling, logs, metrics, and tracing.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/error-design-rate-limiting-observability.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/error-design-rate-limiting-observability.htmlPractice error design, rate limiting and observability with 48 senior and staff REST API interview questions on problem+json, 429s, retries, logs, and tracing.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/idempotency-in-practice.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/idempotency-in-practice.htmlAPI idempotency explained: how idempotency keys make POST retries safe, dedupe duplicate requests, and survive network failures without double-charging in REST APIs.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/idempotency-in-practice.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/idempotency-in-practice.htmlPractice idempotency and reliability with 38 senior and staff REST API interview questions on idempotency keys, safe retries, exactly-once semantics, and dedup.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/pagination-at-scale.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/pagination-at-scale.htmlAPI pagination at scale: why offset pagination breaks on large changing datasets, how cursor and keyset pagination work, and stable page design for REST APIs.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/pagination-at-scale.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/pagination-at-scale.htmlPractice pagination at scale with 31 senior and staff REST API interview questions on cursor vs offset paging, keyset pagination, deep pages, and stable sorts.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/api-security-and-auth.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/api-security-and-auth.htmlA REST cheat sheet on the six architectural constraints, the Richardson maturity model, HATEOAS, and HTTP method semantics — quick reference for API interviews.Sun, 21 Jun 2026 00:00:00 GMTReferenceREST API Mastery · Referencehttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/api-versioning-strategies.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/api-versioning-strategies.htmlPractice API versioning and evolution with 36 senior and staff REST API interview questions on URI vs header versioning, breaking changes, and deprecation.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/applied-systems-design/README.htmlhttps://dineshbyte.github.io/engineering-learning-hub/applied-systems-design/README.htmlApplied Systems Design learning track — the roadmap and index of lessons, references, and interview questions for Applied Systems Design on Engineering Vault.Sun, 21 Jun 2026 00:00:00 GMTRoadmapApplied Systems Designhttps://dineshbyte.github.io/engineering-learning-hub/applied-systems-design/applied-systems-design-fundamentals.htmlhttps://dineshbyte.github.io/engineering-learning-hub/applied-systems-design/applied-systems-design-fundamentals.htmlA repeatable method for any blank-page system design — interview or real review. Walk through requirements, estimates, APIs, data, and scaling without freezing.Sun, 21 Jun 2026 00:00:00 GMTLessonApplied Systems Designhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/async-and-long-running-operations.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/async-and-long-running-operations.htmlPractice async and long-running operations with 40 senior and staff REST API interview questions on 202 Accepted, status polling, callbacks, webhooks, and jobs.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/async-and-long-running-operations.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/async-and-long-running-operations.htmlAsync and long-running REST operations: the 202 Accepted pattern, status polling, job resources, webhooks vs polling, and designing APIs for exports and batch jobs.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/reference/bloom-filters-cheat-sheet.htmlhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/reference/bloom-filters-cheat-sheet.htmlA one-page Bloom filter reference: the m, k, and false-positive-rate formulas, when to use one (LSM reads, dedup, cache admission), and when to avoid it.Sun, 21 Jun 2026 00:00:00 GMTReferenceBloom Filters · Referencehttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/sizing-a-bloom-filter.htmlhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/sizing-a-bloom-filter.htmlSize a Bloom filter the senior way: start from the false-positive rate you can tolerate, then derive bits (m) and hash functions (k) from n — don't guess.Sun, 21 Jun 2026 00:00:00 GMTLessonBloom Filters · Corehttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/variants-at-scale.htmlhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/variants-at-scale.htmlCounting, scalable, and blocked Bloom filter variants compared. Standard Bloom is the default — reach for a variant only when deletes, unknown n, or speed bite.Sun, 21 Jun 2026 00:00:00 GMTLessonBloom Filters · Staffhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/failure-modes-and-lsm-reads.htmlhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/failure-modes-and-lsm-reads.htmlHow a Bloom filter earns its keep on the LSM-tree read path to skip disk reads — and how it silently rots when load outgrows its sizing. Real failure modes.Sun, 21 Jun 2026 00:00:00 GMTLessonBloom Filters · Seniorhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/caching-pagination-versioning.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/caching-pagination-versioning.htmlA REST cheat sheet on the six architectural constraints, the Richardson maturity model, HATEOAS, and HTTP method semantics — quick reference for API interviews.Sun, 21 Jun 2026 00:00:00 GMTReferenceREST API Mastery · Referencehttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/consensus-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/consensus-deep-dive.htmlHow distributed consensus works: the FLP impossibility result, Paxos, Raft leader election and safety, quorums, and the commit rules that keep replicated state machines correct.Sun, 21 Jun 2026 00:00:00 GMTLessonDistributed Systemshttps://dineshbyte.github.io/engineering-learning-hub/applied-systems-design/consistent-hashing-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/applied-systems-design/consistent-hashing-deep-dive.htmlConsistent hashing from the ring up: why mod N is catastrophic on resize, why a bare ring is lopsided, and how virtual nodes (vnodes) flatten the distribution.Sun, 21 Jun 2026 00:00:00 GMTLessonApplied Systems Designhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/reference/context-engineering-cheat-sheet.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/reference/context-engineering-cheat-sheet.htmlA one-page context engineering cheat sheet: retrieval, chunking, RAG, embeddings, vector indexes, memory, compression, prompt caching, ordering, evaluation, and security at a glance.Sun, 21 Jun 2026 00:00:00 GMTReferenceContext Engineering · Referencehttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/architecture-reviews-and-production-design.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/architecture-reviews-and-production-design.htmlThe capstone: review real AI products (Cursor, Claude Code, ChatGPT, Copilot) by their context strategy, design production agents (billing, support, engineering, research), and walk away with the Principal's toolkit — cheat sheet, checklists, and interview banks.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/context-selection-and-retrieval.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/context-selection-and-retrieval.htmlYour bar: explain how a system decides what to send to the model, and compare lexical, semantic, hybrid search, ranking and re-ranking by purpose, advantages, disadvantages, and failure modes.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/reference/context-architecture-review.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/reference/context-architecture-review.htmlA one-page context engineering cheat sheet: retrieval, chunking, RAG, embeddings, vector indexes, memory, compression, prompt caching, ordering, evaluation, and security at a glance.Sun, 21 Jun 2026 00:00:00 GMTReferenceContext Engineering · Referencehttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/README.htmlhttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/README.htmlDistributed Systems learning track — the roadmap and index of lessons, references, and interview questions for Distributed Systems on Engineering Vault.Sun, 21 Jun 2026 00:00:00 GMTRoadmapDistributed Systemshttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/distributed-systems-fundamentals.htmlhttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/distributed-systems-fundamentals.htmlDistributed systems fundamentals: the CAP theorem, consistency models, replication, partitioning, and failure modes — reason about any async, multi-service system from first principles.Sun, 21 Jun 2026 00:00:00 GMTLessonDistributed Systemshttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/embeddings-indexing-and-cost.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/embeddings-indexing-and-cost.htmlYour bar: explain what an embedding actually is, how vector indexes (HNSW / IVF / PQ) trade recall for speed and memory, and how to model the real token and dollar cost of a retrieval pipeline.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/exactly-once-kafka-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/exactly-once-kafka-deep-dive.htmlExactly-once semantics in Kafka explained: idempotent producers, transactions, and committing consumer offsets inside the producer transaction to make read-process-write loops exactly-once.Sun, 21 Jun 2026 00:00:00 GMTLessonStreaming & Event-Drivenhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/how-coding-agents-work.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/how-coding-agents-work.htmlYour bar: explain step-by-step how Claude Code executes a real task, how Cursor retrieves context from a large repo, and how MCP turns any business function…Sun, 21 Jun 2026 00:00:00 GMTLessonAI Agentshttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/caching-and-conditional-requests.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/caching-and-conditional-requests.htmlHTTP caching for REST APIs: Cache-Control directives, ETags and Last-Modified, conditional GET with If-None-Match, 304 responses, and optimistic concurrency control.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/caching-and-conditional-requests.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/caching-and-conditional-requests.htmlPractice HTTP caching with 36 senior and staff REST API interview questions on Cache-Control, ETags, conditional requests, validation, and revalidation.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/http-methods-and-status-codes.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/http-methods-and-status-codes.htmlHTTP methods and status codes explained: GET, POST, PUT, PATCH, DELETE semantics, safe vs idempotent methods, and choosing the right 2xx/4xx/5xx code for REST APIs.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/http-methods-and-status-codes.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/http-methods-and-status-codes.htmlPractice HTTP methods and status codes with 49 senior and staff REST API interview questions on GET/POST/PUT/PATCH/DELETE semantics, safety, and 2xx–5xx codes.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/idempotency-and-retries.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/idempotency-and-retries.htmlA REST cheat sheet on the six architectural constraints, the Richardson maturity model, HATEOAS, and HTTP method semantics — quick reference for API interviews.Sun, 21 Jun 2026 00:00:00 GMTReferenceREST API Mastery · Referencehttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/idempotency-keys-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/distributed-systems/idempotency-keys-deep-dive.htmlIdempotency keys done right: dedupe retried requests, store and replay saved results safely, handle concurrent and in-flight duplicates, and reach exactly-once delivery semantics.Sun, 21 Jun 2026 00:00:00 GMTLessonDistributed Systemshttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/memory-compression-and-failure-modes.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/memory-compression-and-failure-modes.htmlYour bar: distinguish memory from a knowledge base, manage a long-running agent's context with summarization and sliding windows, and diagnose the five ways context systems fail — missing, wrong, outdated, conflicting, excessive.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/context-caching-ordering-and-security.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/context-caching-ordering-and-security.htmlYour bar: structure a prompt for KV/prompt caching, order the window so the model actually reads what matters, and defend a retrieval pipeline against prompt injection and cross-tenant leaks.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/storage-engines/lsm-compaction-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/storage-engines/lsm-compaction-deep-dive.htmlLSM-tree compaction in depth: leveled vs tiered strategies, the write/read/space amplification trade-off, and the tombstone resurrection bug — pick per table.Sun, 21 Jun 2026 00:00:00 GMTLessonStorage Engineshttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/agent-systems-and-production.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-agents/lessons/agent-systems-and-production.htmlYour bar: decide when multi-agent is justified vs unnecessary; name five ways production agents fail and how to prevent them; design a business agent…Sun, 21 Jun 2026 00:00:00 GMTLessonAI Agentshttps://dineshbyte.github.io/engineering-learning-hub/advanced-ai-systems/lessons/multi-agent-systems-when-and-when-not.htmlhttps://dineshbyte.github.io/engineering-learning-hub/advanced-ai-systems/lessons/multi-agent-systems-when-and-when-not.htmlThe hype-free take on multi-agent systems: orchestrator-worker vs swarms, the coordination tax, when one well-tooled agent wins, and the anti-patterns.Sun, 21 Jun 2026 00:00:00 GMTLessonAdvanced AI Systemshttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/mvcc-internals-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/mvcc-internals-deep-dive.htmlMVCC internals: how databases store row version chains, how a snapshot decides which version it sees, and why one long-running transaction causes table bloat and vacuum pressure.Sun, 21 Jun 2026 00:00:00 GMTLessonTransactions & Isolationhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/retrieval-evaluation-and-observability.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/retrieval-evaluation-and-observability.htmlYour bar: measure retrieval separately from generation, name recall@k / precision@k / MRR / nDCG and the RAGAS-style answer-quality metrics, and explain golden sets, offline vs online eval, and the tracing that tells you which stage failed.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/codebase-context-chunking-and-rag.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/codebase-context-chunking-and-rag.htmlYour bar: explain how Cursor and Claude Code understand large repos, why chunking exists and how it fails, and how RAG works from first principles — and why most RAG bugs are retrieval bugs.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/resource-modeling-and-uri-design.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/resource-modeling-and-uri-design.htmlPractice resource modeling and URI design with 44 senior and staff REST API interview questions on resources, naming, nesting, slugs, and canonical URLs.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/mock-interview-whiteboard-design.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/mock-interview-whiteboard-design.htmlA REST API design mock interview walkthrough: scope the problem, model resources and URIs, pick status codes, and handle auth, pagination, idempotency, and errors live.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/what-makes-an-api-restful.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/what-makes-an-api-restful.htmlPractice RESTful design with 21 senior and staff REST API interview questions on constraints, statelessness, HATEOAS, and the Richardson maturity model.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/mock-interview-whiteboard-design.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/interview/mock-interview-whiteboard-design.htmlPractice API system design with 48 senior and staff REST mock interview questions and whiteboard rounds covering end-to-end design, trade-offs, and follow-ups.Sun, 21 Jun 2026 00:00:00 GMTInterviewREST API Mastery · Interviewhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/api-versioning-strategies.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/api-versioning-strategies.htmlREST API versioning strategies compared: URI path /v1 vs header and media-type versioning, breaking vs non-breaking changes, deprecation, and evolving APIs safely.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/rest-constraints-and-maturity.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/reference/rest-constraints-and-maturity.htmlA REST cheat sheet on the six architectural constraints, the Richardson maturity model, HATEOAS, and HTTP method semantics — quick reference for API interviews.Sun, 21 Jun 2026 00:00:00 GMTReferenceREST API Mastery · Referencehttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/resource-modeling-and-uri-design.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/resource-modeling-and-uri-design.htmlREST resource modeling and URI design: nouns over verbs, collections vs sub-resources, nesting depth, naming conventions, and clean URL patterns for scalable APIs.Sun, 21 Jun 2026 00:00:00 GMTLessonREST APIhttps://dineshbyte.github.io/engineering-learning-hub/production-ai-architecture/lessons/reviewing-ai-like-a-distributed-system.htmlhttps://dineshbyte.github.io/engineering-learning-hub/production-ai-architecture/lessons/reviewing-ai-like-a-distributed-system.htmlReview an AI feature the way you review any production service: reliability, scalability, observability — with one new variable, non-determinism, changing every lens.Sun, 21 Jun 2026 00:00:00 GMTLessonProduction AI Architecturehttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/ssi-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/ssi-deep-dive.htmlSerializable Snapshot Isolation (SSI) explained: how a database keeps non-blocking snapshot reads yet stays serializable by tracking rw-dependencies and aborting dangerous write skew.Sun, 21 Jun 2026 00:00:00 GMTLessonTransactions & Isolationhttps://dineshbyte.github.io/engineering-learning-hub/storage-engines/README.htmlhttps://dineshbyte.github.io/engineering-learning-hub/storage-engines/README.htmlStorage Engines learning track — the roadmap and index of lessons, references, and interview questions for Storage Engines on Engineering Vault.Sun, 21 Jun 2026 00:00:00 GMTRoadmapStorage Engineshttps://dineshbyte.github.io/engineering-learning-hub/storage-engines/storage-engines-fundamentals.htmlhttps://dineshbyte.github.io/engineering-learning-hub/storage-engines/storage-engines-fundamentals.htmlHow a database puts bytes on disk and finds them again — B-trees vs LSM-trees, indexes, and data models — so you can choose a storage engine with real judgment.Sun, 21 Jun 2026 00:00:00 GMTLessonStorage Engines · Fundamentalshttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/streaming-event-driven-fundamentals.htmlhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/streaming-event-driven-fundamentals.htmlStreaming and event-driven architecture from first principles: logs, topics, partitions, delivery guarantees, event time vs processing time, and how to design sound async pipelines.Sun, 21 Jun 2026 00:00:00 GMTLessonStreaming & Event-Drivenhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/README.htmlhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/README.htmlStreaming & Event-Driven learning track — the roadmap and index of lessons, references, and interview questions for Streaming & Event-Driven on Engineering Vault.Sun, 21 Jun 2026 00:00:00 GMTRoadmapStreaming & Event-Drivenhttps://dineshbyte.github.io/engineering-learning-hub/ai-infrastructure/lessons/the-ai-infra-stack-end-to-end.htmlhttps://dineshbyte.github.io/engineering-learning-hub/ai-infrastructure/lessons/the-ai-infra-stack-end-to-end.htmlTrace one request through the AI infra stack: text to embeddings to vector DB (HNSW/IVF) to reranker to model gateway to inference server. Where latency, cost, and failure concentrate.Sun, 21 Jun 2026 00:00:00 GMTLessonAI Infrastructurehttps://dineshbyte.github.io/engineering-learning-hub/domain-agent-design/lessons/the-domain-agent-design-method.htmlhttps://dineshbyte.github.io/engineering-learning-hub/domain-agent-design/lessons/the-domain-agent-design-method.htmlYour bar: design any business agent with one repeatable 9-part template — responsibilities, tools, context, memory, runtime, eval, security, approval gates, ROI.Sun, 21 Jun 2026 00:00:00 GMTLessonDomain Agent Designhttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/transactions-isolation-fundamentals.htmlhttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/transactions-isolation-fundamentals.htmlTransaction isolation levels explained: read committed, repeatable read, snapshot, serializable — and the anomalies (dirty reads, write skew, phantoms) each one allows or prevents.Sun, 21 Jun 2026 00:00:00 GMTLessonTransactions & Isolationhttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/README.htmlhttps://dineshbyte.github.io/engineering-learning-hub/transactions-isolation/README.htmlTransactions & Isolation learning track — the roadmap and index of lessons, references, and interview questions for Transactions & Isolation on Engineering Vault.Sun, 21 Jun 2026 00:00:00 GMTRoadmapTransactions & Isolationhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/watermarks-deep-dive.htmlhttps://dineshbyte.github.io/engineering-learning-hub/streaming-event-driven/watermarks-deep-dive.htmlWatermarks and event-time windowing explained: how a watermark estimates completeness, advances by the min rule, triggers windows, handles late data, and why an idle input stalls a pipeline.Sun, 21 Jun 2026 00:00:00 GMTLessonStreaming & Event-Drivenhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/what-is-a-bloom-filter.htmlhttps://dineshbyte.github.io/engineering-learning-hub/bloom-filters/lessons/what-is-a-bloom-filter.htmlA Bloom filter trades certainty for space: "definitely not in the set" is guaranteed, "probably in the set" is not. Learn the core asymmetry and how it works.Sun, 21 Jun 2026 00:00:00 GMTLessonBloom Filters · Foundationhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/what-is-context-and-context-as-query.htmlhttps://dineshbyte.github.io/engineering-learning-hub/context-engineering/lessons/what-is-context-and-context-as-query.htmlYour bar: explain why an LLM cannot see your whole codebase, what actually fills the context window, and why context retrieval — not the model — is where modern AI systems win or lose.Sun, 21 Jun 2026 00:00:00 GMTLessonContext Engineeringhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/what-makes-an-api-restful.htmlhttps://dineshbyte.github.io/engineering-learning-hub/rest-api/lessons/what-makes-an-api-restful.htmlWhat makes an API RESTful? Learn Roy Fielding's six REST constraints — statelessness, uniform interface, HATEOAS, cacheability — and how to nail the interview answer.Sun, 21 Jun 2026 00:00:00 GMTLessonREST API