Specimen VI · 09
HiredInTech
free
Free algorithms + system design frameworks
Migrated to static; interactive grading gone but readable course material and system-design canvas remain.
| Habitat | Interview prep |
| Access tier | free |
| Relevance to stack | low |
| Last active signal | Static content since ~2023 |
| Verified alive | yes — pressed 2026 |
| Specimen no. | VI · 09 |
| Live habitat | https://hiredintech.com |