Overview

Foundations

What architecture actually is once you strip the diagrams away: irreversible decisions, constraints, and coupling.

System Design in Practice

Boundaries, contracts, and integration styles that survive contact with a real organisation.

Data and State

The layer that is hardest to change and easiest to get wrong: storage choice, migrations, consistency, and caching.

Delivery and CI/CD

How code gets from a laptop to production without drama: branching, pipelines, progressive rollout, and rollback.

Platform and Infrastructure

The substrate everything runs on — Kubernetes, IaC, config, tenancy, and the internal platform as a product.

Reliability and Operations

Keeping it up, knowing what up means, and being useful at 3am: SLOs, observability, failure modes, incidents.

Security by Design

The parts you cannot bolt on afterwards: threat models, identity boundaries, secrets, supply chain, and least privilege.

Making Knowledge Explicit

ADRs, diagrams, runbooks, RFCs, and building a team architecture memory that outlives the people who built it.