Courses

LiveFree 15 lessons

System Design: 15 Lessons From Real Outages

Requests, APIs, databases, queues, scaling, resilience, caching, cost, and the interview playbook. Story-driven lessons with diagrams.

MukulDiagramsCalculators

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LiveFree 15 lessons

Data Pipelines That Pay

Batch versus stream, lakehouse bills, and pipeline postmortems priced. From the data desk, with diagrams and calculators.

MukulData Engineering

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LiveFree 17 lessons

Web Performance Economics

Core Web Vitals, edge rendering, and the revenue math of milliseconds. From the performance desk, with diagrams and calculators.

MukulWeb Performance

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LiveFree 18 lessons

AI Agents in Production

Sandboxing, egress, retries, token bills and eval gates. From the agent bench, with live diagrams and calculators.

MukulAI Engineering

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LiveFree 16 lessons

AI Evals That Hold

Golden sets, LLM judges, CI gates and drift monitoring. From the agent bench, with live diagrams.

MukulAI Engineering

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LiveFree 15 lessons

Kubernetes in Production

Control planes, autoscaling, blast radius and inference scheduling. From the on-call, with live diagrams and calculators.

MukulKubernetes

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LiveFree 15 lessons

RAG in Production: 15 Lessons From the Retrieval Bench

Chunking, hybrid search, reranking, grounding and eval gates. From the retrieval bench, with live diagrams and calculators.

MukulAI Engineering

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LiveFree 15 lessons

LLM Inference Economics: 15 Lessons From the Token Meter

Token bills, KV cache, batching and vendor pacts. From the token meter, with live diagrams and calculators.

MukulAI Engineering

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LiveFree 15 lessons

Event Streaming in Production: 15 Lessons From Published Cases

Partitions, consumer groups, rebalance behavior and exactly-once math. Includes sourced incident analysis and an explicitly modeled Kafka scenario.

MukulEvent Streaming

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LiveFree 15 lessons

API Design in Production: 15 Lessons From the Gateway

Contracts, idempotency, rate limits, webhooks and deprecation math. From the gateway, with live diagrams and calculators.

MukulAPI Design

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LiveFree 15 lessons

SRE and Observability in Production: 15 Lessons From the On-Call

SLOs, burn-rate alerts, tracing bills, game days and paging math. From the on-call, with live diagrams and calculators.

MukulSRE

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LiveFree 16 lessons

AI Security in Production: 16 Lessons From the Red Bench

Threat models, sandboxes, egress gates, guardrails and disclosure receipts. From the red bench, with live diagrams and drills.

MukulAI Security

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LiveFree 16 lessons

AI Slop Forensics: 16 Lessons From the Incident Files

Claimed versus proved method, benchmark audits, disclosure timelines and tool-wire forensics. From the research desk, with live diagrams and drills.

RookAI Forensics

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LiveFree 15 lessons

Postgres in Production: 15 Lessons From the Write Path

WAL, checkpoints, vacuum, bloat, indexes, pooling, replication and backup math. From the write path, with live diagrams and calculators.

MukulPostgres

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LiveFree 15 rounds

System Design Interview Bootcamp: 15 Rounds From the Whiteboard

Clarify, boxes, RPS math, storage, caches, queues, sharding and cost closes. Rehearsed on published postmortems and clearly labeled scenarios.

MukulInterviews

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LiveFree 15 lessons

Docker Containers in Production: 15 Lessons From the Layer Ledger

Layers, Dockerfiles, multi-stage builds, registries, CVE scans and the Kubernetes handoff. From the layer ledger, with live diagrams.

MukulContainers

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LiveFree 25 lessons

Netflix in Production: 25 Lessons From the Stream

Open Connect, per-title encodes, Zuul, Hystrix, chaos, EVCache, Keystone, recommendations, Titus and stream economics. The complete stream, priced.

MukulStreaming

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NewFree 12 lessons

Distributed Systems: Truth Under Failure

Causality, quorum, consensus, clocks, idempotency, retries, and recovery—with an incident worksheet for every design promise.

MukulField guide

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NewFree 12 lessons

Search Systems in Production: The Index Room

A query-by-query lab for analyzers, inverted indexes, BM25, shards, hybrid retrieval, and relevance evaluation.

MukulQuery lab

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NewFree 12 lessons

Cloud Networking: Every Millisecond Has a Route

Packet diaries for DNS, BGP, TCP, TLS, load balancers, NAT, MTU, and phase-by-phase latency measurement.

MukulPacket journal

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