Five years of building data systems, turned into things you can actually play with. Assemble a pipeline, survive a 2am on-call shift, tune a Spark cluster, and query a live warehouse. Everything here is hand-built and runs in your browser.
Tap the stages to drop them into the slots, source to serving. Get the flow right and the pipeline goes live. Tap a filled slot to send it back.
Alerts fire faster than you'd like. Resolve each one before its timer runs out, or system health takes the hit. Thirty seconds on the pager. How high can your uptime stay?
Incidents will appear below. Click resolve before each timer empties. Survive thirty seconds.
More executors is not always the answer. Balance parallelism, partitioning, and batch size to hit the throughput goal at the lowest cost. Watch the numbers move as you drag.
A real prompt wired to a small in-browser warehouse. Run queries against my own data. Type help to see what is there, and look for the easter eggs.
Every game on this page is hand-written, no libraries, no shortcuts. The same care goes into the pipelines I ship. If that is the kind of engineer your team needs, let's talk.
