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80+ build-from-scratch courses · 9 languages · no credit card

StorageBuild RedisPython · Go · Rust

Build Redis

Python · Go · Rust

StorageBuild a DatabasePython · C · Rust

Build a Database

Python · C · Rust

ToolingBuild GitPython · Go

Build Git

Python · Go

CompilersBuild a Programming LangPython · Rust

Build a Programming Lang

Python · Rust

SystemsBuild a Container RuntimeGo · C

Build a Container Runtime

Go · C

SystemsBuild a ShellC · Rust

Build a Shell

C · Rust

ToolingBuild a Text EditorC · Rust

Build a Text Editor

C · Rust

SystemsBuild an OS KernelC · Rust

Build an OS Kernel

C · Rust

GraphicsBuild a 3D RendererRust · C++

Build a 3D Renderer

Rust · C++

GraphicsBuild a Ray TracerC++ · Rust

Build a Ray Tracer

C++ · Rust

MLBuild a Neural NetworkPython · C++

Build a Neural Network

Python · C++

GraphicsBuild a Game EngineC++ · Rust

Build a Game Engine

C++ · Rust

NetworkingBuild BitTorrentGo · Python

Build BitTorrent

Go · Python

NetworkingBuild a Load BalancerGo · Rust

Build a Load Balancer

Go · Rust

DistributedBuild a Raft KV StoreGo · Rust

Build a Raft KV Store

Go · Rust

DistributedBuild a BlockchainPython · Go

Build a Blockchain

Python · Go

Explore all 80+ courses

Follow a career path

Sequenced courses that take you from zero to job-ready.

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Backend Engineerintermediate·~80hThe infrastructure under every web service — Go, SQL, caches, queues, and the protocols that connect them.Go FundamentalsSQL FundamentalsBuild Redis+5 more

Backend Engineer

The infrastructure under every web service — Go, SQL, caches, queues, and the protocols that connect them.

Frontend Engineerintermediate·~65hMaster the browser end of the wire — JavaScript, TypeScript, then build the framework you depend on every day.JavaScript FundamentalsTypeScript FundamentalsJavaScript Advanced+4 more

Frontend Engineer

Master the browser end of the wire — JavaScript, TypeScript, then build the framework you depend on every day.

Full-Stack Developerintermediate·~90hBoth ends of the wire: TypeScript on the client, plus a backend language and the protocols that connect them.JavaScript FundamentalsTypeScript FundamentalsSQL Fundamentals+4 more

Full-Stack Developer

Both ends of the wire: TypeScript on the client, plus a backend language and the protocols that connect them.

DevOps / SREintermediate·~70hRun the systems other engineers build — Bash and Go for tooling; Docker, CI, and observability for the platform.Bash FundamentalsGo FundamentalsBuild Docker+4 more

DevOps / SRE

Run the systems other engineers build — Bash and Go for tooling; Docker, CI, and observability for the platform.

Data Scientistbeginner·~60hPython, R, and SQL — the canonical trio of data analysis. Plus the data structures behind efficient queries.Python FundamentalsPython in PracticeR Fundamentals+4 more

Data Scientist

Python, R, and SQL — the canonical trio of data analysis. Plus the data structures behind efficient queries.

See all 14 career paths

Learn programming languages

Each card opens a structured Fundamentals → Intermediate → Advanced track. Tap the > chevron to reveal all 37 languages.

Python

Python

JavaScript

JavaScript

TypeScript

TypeScript

Go

Go

Rust

Rust

C++

C++

+31

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