Knowledge map

Dhayal's Engineering Atlas

A structured map of software foundations, intelligent systems, distributed infrastructure, cloud operations, security, and quantitative engineering.

Foundations & Algorithms AI & Autonomous Systems Backend & Distributed Systems Cloud, Platform & Security Quantitative Engineering

Domain 01

Foundations & Algorithms

Clear mental models, computer-science fundamentals, algorithms, and problem-solving patterns that support every advanced path in the Atlas.

3 series · 305 published lessons

technology fundamentalsalgorithmsdata structuresproblem solving

Tech Explained SimplyThree seasons and 300 carefully ordered lessons that turn everyday technology, software, the internet, cloud, security, data, and AI into clear mental models.300 lessons LeetCode NotebookProblems I've solved, with the reasoning spelled out — pattern recognition, the naive approach, the optimization, and the complexity math.5 lessons DP in the WildDynamic programming beyond the grind: the same patterns that solve LeetCode problems, found living inside compilers, query planners, and robots — plus problems I invent myself and then solve.0 lessons

Domain 02

AI & Autonomous Systems

Production AI, agents, context engineering, evaluation, orchestration, and the emerging systems that coordinate intelligence across machines and networks.

1 series · 0 published lessons

AI engineeringagentscontext engineeringautonomous systems

AI Engineering MasteryA production-minded AI engineering library: LLM apps, RAG, agents, evals, observability, cost, latency, safety, and AI product judgment.0 lessons

Domain 03

Backend & Distributed Systems

APIs, data, messaging, reliability, consistency, scale, and the engineering judgment required to design systems that survive production.

2 series · 1 published lessons

backend engineeringdistributed systemssystem designreliability

System Design Case StudiesDesigning real systems on paper — requirements, back-of-envelope math, architecture, trade-offs, and what breaks at scale.1 lessons Backend/System Design MasteryA practical backend and system design library for APIs, data models, queues, caching, distributed systems, reliability, scale, and senior engineering judgment.0 lessons

Domain 04

Cloud, Platform & Security

Cloud infrastructure, platform engineering, containers, identity, delivery, operations, and security from first command to production practice.

3 series · 1,133 published lessons

cloudplatform engineeringDevOpssecurity

AWS from ZeroA long-running, CLI-first AWS library: no console clicking, no mystery magic, just tiny commands that grow into real cloud infrastructure over time.1130 lessons Kubernetes from ZeroA hands-on, step-by-step path from "what even is a container?" to confidently running workloads on Kubernetes. No prior K8s experience needed.3 lessons Cloud + Security For Production EngineersA production engineer's library for cloud architecture, platform engineering, DevOps, identity, network security, app security, incident response, and cost-aware operations.0 lessons

Domain 05

Quantitative Engineering

Market-data systems, backtesting engines, options mechanics, statistics, risk, and performance engineering grounded in real trading workflows.

1 series · 4 published lessons

market databacktestingoptionsrisk

Quant EngineeringBuilding a NIFTY options backtesting engine from real market data: backtest engine design, options mechanics, expiry handling, Greeks, P&L attribution pitfalls, and the data pipelines underneath — written from the scars of actually doing it.4 lessons