See inside
the machine.

Cutaway is the Welfinex tech blog where system design, AI, and engineering are explained as working systems you can take apart, tier by tier.

It comes apart.

A production system looks complex until it separates. Five tiers, one request path. Meet each one.

The edge.

Traffic lands closest to the user. The CDN answers what it can; the load balancer spreads the rest.

The gateway.

One front door for every call. It checks identity, applies limits, and routes to the right service.

The services.

Small, focused services do the real work. Each one owns its job and nothing else.

The queue.

Anything slow goes on the queue so no user waits on it. Workers drain it in the background.

The data.

The cache answers in microseconds. The database keeps the truth.

Back together.

Every dispatch takes a system like this apart, stage by stage. Pick one below and see inside.