Database work
Database design, migration, reporting and the rescue work that follows a spreadsheet outgrowing itself.
Structure that fits the questions you will need to ask.
Moving off the spreadsheet that outgrew itself, without losing the history in it.
Queries and reports that answer the actual question rather than an approximation of it.
We publish these because most of the value in hiring anyone is knowing which mistakes are common, and that knowledge is not worth hiding.
A shared spreadsheet with no constraints accumulates contradictions silently, and there is no way to tell which row is right.
Heavy queries against production slow the thing everyone is using, and it is always blamed on the network.
Including when the answer is that you do not need what you came to ask for. Anyone who never says that is not giving you information, they are giving you an invoice.
Where something needs a legal opinion, a financial audit or a clinical judgement, we will say so and stop rather than improvise past the edge of what we do.
Tell us the situation rather than the service you think you need. We would rather start from your problem.