Guide
From zeroRunnable codeQuiz-gated
Programming Basics
Learn to code from absolute zero — in Python.
The modern engineer's throughline
Learn the craft.
Then prove it.
One continuous path from your first line of code to the room where it counts — five stages: learn to code, specialize, build something real, prep, and practice.
Built around real demand
Every guide, brief, and interview question here maps to what employers are actually posting — not guesswork.
ReactPythonTypeScriptAWSJavaScriptAI agentsPostgreSQLGitMachine learningLLMsNode.jsCI/CD
Top skills across ~259 recent postings · a dated snapshot, refreshed periodically
Act 1 — Start coding
Learn to code from absolute zero
No prior experience assumed. Variables, control flow, functions, and debugging — taught from nothing in Python, with runnable in-browser code. The on-ramp for everything that follows.
Act 2 — Specialize
Pick your craft and go deep
Five self-contained 2026 courses — AI, web, security, cloud, and data engineering. A complete beginner can start at chapter one and finish job-ready; a working engineer uses them as a sharp refresh.
Guide
18 chapters7 partsRunnable Python
Modern AI Guide
Become an AI engineer in 2026 — first API call to agents in production.
Guide
17 chapters~700 quiz QsGated unlock
Modern Web Dev Guide
A 2026 web-dev curriculum turned into an interactive course.
Guide
14 chapters7 partsCode challenges
Modern Security Engineer Guide
Offensive and defensive security, from attacker mindset to job-ready.
Guide
11 chaptersAWS · GCP · AzureIaC + K8s
Modern Cloud Engineer Guide
Cloud from first principles — foundations to Kubernetes and platform engineering.
Guide
12 chaptersSQL · Spark · Kafkadbt + Lakehouse
Modern Data Engineering Guide
Build the pipelines that power analytics and AI — from first principles.
Act 3 — Build
Ship something real
Knowledge isn't proof. Build one production-grade, portfolio-shining project the way a real engineer does — and have it reviewed like a staff engineer would.
Shipyard
Browse the briefs ↗Guided, graded, yours.
A brief gives you a real problem and milestone tickets; you build it in your own repo; a coach guides you when you're stuck (hint → direction → how it should be done); and a grader scores it on system design, correctness, production readiness, and "would this shine in a portfolio." SoloMock proves you can interview — Shipyard proves you can ship.
Build in your own envStaff-engineer reviewPortfolio-grade
Act 4 — Prep
Get interview-ready
The material the loops actually test — data structures, system design, and the 2024–2026 AI-era rounds — so you walk in knowing the shape of every round.
Guide
86 lessons16 phasesAI-era rounds
SWE Interview Guide
Zero-to-hero interview prep — including the AI-era rounds.
Act 5 — Practice
Where the reading becomes reps
Reading gets you knowledge; only practice gets you ready. Talk through problems out loud with a realtime AI interviewer that reacts to what you type and say.
Practice
Realtime voice15 problemsLive feedback
SoloMock
Talk through coding problems out loud with an AI interviewer.