Featured PDF ~20 min
System Design Self-Audit
A short honesty check for backend engineers. Where are you solid, where are you bluffing, and what should you study next before a cohort or interview loop.
self-assessmentsystem design
Free downloads
Free Resources
Practical PDFs and guides for engineers who want structure, not noise. Use them on your own, then step into the cohort or the full learning path when you are ready.
PDF ~30 min
90-Day Backend to AI Engineer Roadmap
A 12-week checklist for backend engineers who want to ship one real AI product, not collect tutorials. One support-assistant project, four stacks (.NET, Java, Node, Python), week by week until it is live.
AI engineeringroadmapbackend
PDF ~10 min
Redis Commands Cheatsheet
Quick reference for the Redis data structures that show up in real systems and interview whiteboards. Keep it open while you follow the Redis DS demo and try the commands yourself.
redisdata structurescaching