FinOps, before the cloud invoice arrives
Opselis
Tags, showback and rightsizing are not IT bookkeeping. They are an engineering discipline that protects product margin. The team sees its bill, then anomalies, rightsizing and commitments.
Cloud cost leaks where nobody is the owner: preview environments, logs without retention, disks after a migration, an oversized node group “just in case”.
FinOps at Opselis starts with allocation. If a team cannot see its bill, it will not optimise. Then the rhythm: weekly anomalies, monthly rightsizing, quarterly commitments (RI/SP).
For fintech we add a layer: savings must not break the SLO or DORA controls. A cheap environment that will not survive an audit is the most expensive one.