Building a Curated Repository: System Design (HLD) & Low-Level Design (LLD) Resources by Experience Level

Hi everyone, I'm a Staff Software Engineer at a FAANG company, and I've noticed a gap in how we share interview preparation resources. While there are many threads asking for HLD and LLD materials, th

Hi everyone, I'm a Staff Software Engineer at a FAANG company, and I've noticed a gap in how we share interview preparation resources. While there are many threads asking for HLD and LLD materials, they often lack organization and context about which resources work best for different experience levels. I want to create a comprehensive, well-organized repository (and potentially a blog) that categorizes resources by: * Experience level (Entry/Mid/Senior) * What makes each resource valuable (based on real user experiences) A Staff Engineer's interview prep looks very different from a new grad's prep. The depth, breadth, and focus areas vary significantly. Having resources tagged by seniority will help people focus on what's actually relevant for their level, saving time and reducing frustration. How you can help: Please share resources you've personally used and found helpful for HLD or LLD preparation. When sharing, it would be great if you could include: * Your experience level when you used it * Whether it's free or paid * Any limitations or things to be aware of My commitment: I'll compile all recommendations into a structured format and share it back with the community as a GitHub repo or blog post that everyone can reference and contribute to over time. Please note: This is about genuine recommendations only. No promotional content or advertisements, please.