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Build AI systems. Deploy them in the real world.

Interactive lessons and real labs for Applied AI Engineers and Forward Deployed Engineers. Everything runs in your browser, so you can start in a minute.

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Lesson 7: RAG pipelinesScores computed in your browser
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Answered from Returns and Refund Policy, with sources.

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This is the retriever from Lesson 7, running in your browser. It scores every passage, answers from the best ones and refuses when the evidence is weak. Try asking something off-topic.

Pick your path.

Two roles, one set of skills. Applied AI Engineers build the system; Forward Deployed Engineers get it working at a customer.

Applied AI Engineer

Build AI systems that hold up in production.

  • Retrieval that answers from sources and refuses when unsure
  • Agents with tools, memory and recovery from failure
  • Evaluation harnesses that catch regressions before users do
  • Production work: cost, latency, safety and scale

30 lessons with labs, plus 18 capstone projects.

See the Applied AI path
Forward Deployed EngineerFlagship path

Take AI from a demo to a customer's production.

  • Run discovery with a customer's team and find the real problem
  • Fit into their data, permissions, security review and SSO
  • Plan a two-week pilot with success criteria agreed up front
  • Explain results and trade-offs to executives

Builds on the Applied AI lessons, then adds field deployment, Claude/OpenAI/Gemini platform fluency and FDE interview prep.

See the FDE path

Need the fundamentals first? Foundations covers programming, data, systems and math, and it's free. Explore Foundations

How every lesson works.

  1. Understand it

    Short explanations you can manipulate: sliders, heatmaps and live traces. Every lesson cites its sources.

  2. Run it

    Labs and code exercises run in your browser on real Python, TypeScript and Java. No installs, no API keys.

  3. Ship it

    Capstone projects on real infrastructure, with an architecture diagram and a step-by-step build guide.

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