Skip to main content

Cracking Walnuts

Algorithm patterns & templates

Quick reference cards for interviews

Design patterns & practical code

Linux Internals

Kernel, networking & system calls

End-to-end system design problems

Production systems & operations

Key Technologies

Deep dives into core technologies

Distributed Systems

Consensus, replication & more

ADRs and trade-off analysis

Internal platforms & developer experience

Incident Patterns

Postmortems & reliability patterns

Metrics & FinOps

DORA, cost optimization & KPIs

Security governance & frameworks

Technical leadership & influence

Team topologies & scaling orgs

Staff+ Interviews

Staff/principal level prep

Curated academic & industry papers

Visualizers & Calcs

Interactive system design tools

Learning Roadmap

Your path from DSA to Staff+

CrackingWalnuts

Crack Interviews

System Design
DSA Templates
LLD Problems
Cheat Sheets
Staff+ Interviews

Build Expertise

Infrastructure
Distributed Systems
Linux Internals
Key Technologies
Tools & Visualizers

Grow as Leader

Engineering Leadership
Org Design
Platform Engineering
Compliance
Metrics & FinOps

Level up your engineering

How systems are built, and why they work that way.

Get updates on new deep dives

Cracking Walnuts

© 2025 Cracking Walnuts

Home
System Design

System Design

(9 posts)

System Design: Object Storage (Erasure Coding, Flat Namespace, and Exabyte Scale)

System Design: Object Storage (Erasure Coding, Flat Namespace, and Exabyte Scale)

Mar 31, 2026 · 65 min

System Design: AI Software Engineer (From Autocomplete to Autonomous App Builder)

System Design: AI Software Engineer (From Autocomplete to Autonomous App Builder)

System DesignAI

Mar 25, 2026 · 94 min

RAG and LLM Platform at Scale: Ingestion, Retrieval, Generation, and Evaluation for 10M Queries/Day

RAG and LLM Platform at Scale: Ingestion, Retrieval, Generation, and Evaluation for 10M Queries/Day

System DesignAI

Mar 22, 2026 · 105 min

Building a Multi-Tenant AI Agent Platform for Restaurant Intelligence

Building a Multi-Tenant AI Agent Platform for Restaurant Intelligence

System DesignAI

Mar 17, 2026 · 109 min

System Design: Real-Time Collaborative Editor

System Design: Real-Time Collaborative Editor

Mar 14, 2026 · 86 min

Observability Platform at Scale - Metrics, Traces, Logs, and Profiles

Observability Platform at Scale - Metrics, Traces, Logs, and Profiles

Mar 12, 2026 · 114 min

System Design: Notification Platform, 100M Notifications/Second

System Design: Notification Platform, 100M Notifications/Second

Mar 6, 2026 · 79 min

Building a Fail-Safe, Scalable Top-K Streaming System

Building a Fail-Safe, Scalable Top-K Streaming System

System DesignData Engineering

Feb 27, 2026 · 51 min

Designing a Multi-Tenant, Globally Scalable Tagging System

Designing a Multi-Tenant, Globally Scalable Tagging System

May 25, 2025 · 23 min