Start free. Use Pro to work through deeper data failures, runnable exercises and architecture tradeoffs—with your work saved in one place.
See how the workbench fits the way you learn.
For engineers who want to investigate, implement and explain.
No money is collected. Explore the offer below and start with Free practice today.
Ask about a Pro pilotEach path links to existing tools. Work at your own pace; these are practice paths, not accredited courses.
Find overlapping history, reconcile retried loads, audit access exports and build replay-safe data checks.
A tested SQL query, edge-case reasoning and a saved review for each lab.
Change workloads, compare bottlenecks and test failure assumptions across cloud, warehouse and AI components.
A saved design with workload assumptions and tradeoff notes.
Implement small functions, inspect canonical cases and iterate on edge conditions in a disposable browser worker.
Your implementation and local check results, with private draft saving.
Inspect the schema, examples and acceptance criteria before changing code.
Run browser-supported checks. Compare actual rows or outputs with the explicit contract.
Save your code and notes. Explain the failure prevented and one case the fixtures do not prove.
SQL uses local DuckDB fixtures; JavaScript uses public canonical cases. Project checklists are self-assessed. Studio results are models, not vendor benchmarks.
| Included | Free | Pro |
|---|---|---|
| Public field guides | All 9 guides | All 9 guides |
| Guided courses | 3 introductory lessons | 12 lessons including 3 capstones |
| Engineering Missions | Current starter mission | Advanced missions and archive |
| Engineering puzzles | Daily rotating pick | All 6 puzzles |
| Original coding briefs | 6 starter challenges | All 30 challenges |
| Engineering practice | 5 starter labs | 182 tasks across 9 streams |
| Snowflake & Databricks SQL | 1 starter SQL lab | 32 SQL labs · 96 fixture checks |
| Browser JavaScript checks | Selected starter practice | 81 runnable exercises |
| Architecture Studio | Pro preview | 44 components · 9 scenarios |
| Saved drafts, profile & export | Included | Included, plus Pro badge |
Choose Pro for structured practice with SQL failure cases, broader coding exercises and modeled architecture decisions. Start with Free if you are still exploring the workbench.
Eight original SQL labs cover history overlaps, load reconciliation, access-policy data, uncached latency, customer references, backfill planning, conflicting replays and ordered funnels. Each includes three executable fixture checks, hints and review prompts.
Your saved work remains account-owned and exportable. Premium briefs and new practice access lock when membership expires.
No vendor compute or AI inference credits are included. SQL runs in browser DuckDB fixtures; Architecture Studio models cloud, warehouse and AI components. These are educational tools, not certifications or job guarantees.
The separate algorithm judge is not connected. Runnable JavaScript and SQL lab practice is available, but Pro does not unlock an unavailable server execution service.
Live charging is not enabled. ₹299/month is a proposed launch price. Checkout, cancellation, renewal and refund terms must be available before paid subscriptions launch. Any owner-granted pilot access is complimentary, not a purchase.