Backend work is mostly about the decisions you cannot undo cheaply. A data model chosen in week two is still shaping the product three years later; an authentication approach bolted on late touches every endpoint. We spend real time on those choices before writing the code that depends on them.
In practice that means explicit data modelling, typed contracts between services, migrations that can run against production without downtime, and observability wired in from the first deploy rather than after the first incident. We prefer boring, well-understood infrastructure over anything that needs a champion to keep it alive.
We also inherit a lot of systems. When a codebase arrives without documentation or tests, the first work is usually mapping it and adding a safety net — so the changes you actually want become possible without a rewrite.
