Observability & SRE System Designs
Worked Observability & SRE system design walkthroughs: the requirements, the trade-offs, real numbers and the component choices behind each design.
Alerting and On-Call Routing System
Design a PagerDuty-style platform that ingests monitoring events, deduplicates and groups them into incidents, and routes pages to the right on-call engineer via escalation policies.
Observability & SRE · intermediate · 12 min read
Chaos Engineering: Fault Injection, Game Days, and Resilience Testing
A deep-dive into chaos engineering principles, architectures, and tooling for building and validating resilient distributed systems through controlled failure experiments.
Observability & SRE · advanced · 12 min read
Incident Response: Severity, Command Roles, Runbooks, and Postmortems
A complete operational framework for detecting, triaging, resolving, and learning from production incidents—covering severity levels, ICS roles, runbook design, and blameless postmortems.
Observability & SRE · intermediate · 12 min read
Log Aggregation Pipeline at Scale
End-to-end design for ingesting, indexing, retaining, and querying billions of log events per day, covering architecture, data models, failure modes, and scaling strategies.
Observability & SRE · advanced · 12 min read
Observability: Metrics, Logs, Traces, and Events
A practical guide to instrumenting distributed systems with metrics, logs, traces, and events — what each signal is, when to use it, and how to build a production-grade observability pipeline.
Observability & SRE · beginner · 12 min read
SLIs, SLOs, and Error Budgets: Defining and Enforcing Reliability Targets
Learn how to define Service Level Indicators, set SLO thresholds, calculate error budgets, and build the tooling that enforces reliability contracts in production.
Observability & SRE · intermediate · 12 min read
Synthetic Monitoring and Real User Monitoring
A deep dive into proactive synthetic checks and passive RUM pipelines, how to build both, and when to use each for production observability.
Observability & SRE · intermediate · 12 min read
Time-Series Metrics Store (Prometheus-Style)
Design a horizontally scalable, high-throughput metrics ingestion and query system capable of storing billions of samples with millisecond-precision timestamps and fast range queries.
Observability & SRE · advanced · 12 min read