Practice high-stakes architectural decisions in a risk-free environment. Build the judgment that defines senior engineering roles.
Scenario Analysis
Complexity Score
Time Pressure
Every feature is designed to mirror the complexity and pressure of production systems. No toy problems, no shortcuts.
Practice with scenarios based on actual production incidents. From cascading failures to consensus algorithms, experience the decisions that define senior engineers.
Get instant, detailed analysis of your architectural decisions. Learn from mistakes in real-time, not in production.
Define your career path and target specific engineering levels (L4 to L7+).
Every decision you make contributes to your Architectural Index (AIX™).
Weekly score
842 +12%
150+
Scenarios
Real-world challenges
L4-L7
Complexity
Engineering levels
AI-Powered
Feedback
Instant analysis
Tracked
Progress
Quantifiable growth
A structured approach to building architectural expertise, one decision at a time.
Select from scenarios across different domains and complexity levels. Each scenario is based on real production systems and challenges.
Work through the architectural decisions. Consider trade-offs, constraints, and failure modes. Document your reasoning.
Receive detailed AI-powered analysis of your approach. Understand what worked, what didn't, and why. Track your progress over time.
Code executes ideas. Architecture defines outcomes. Cortex develops the thinking behind resilient, scalable systems.
Learn to break down complex problems, identify constraints, and design scalable solutions. Practice the thought process that separates senior engineers from junior developers.
Master the art of making informed decisions. Understand when to choose consistency over availability, when to denormalize, and how to balance competing priorities.
Develop the mindset to predict system failures before they happen. Learn to think through edge cases, cascading failures, and recovery strategies.
Build the mental models used by staff+ engineers. Learn to justify your decisions, communicate trade-offs, and defend your architectural choices.
Practice scenarios across all engineering domains
Begin with free access to foundational scenarios. Upgrade as you grow to unlock advanced challenges and personalized AI feedback.
Start learning immediately, no credit card required
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Pro features with AI-powered feedback and unlimited scenarios coming soon