Writing
Mostly technical, occasionally opinionated, never a product announcement dressed up as an article. If you reconcile for a living, some of this should be immediately familiar.
Everything else
Engineering
The schema is public, the standard is well written, and the files will still surprise you. Eleven things that actually break parsers.
Mikel Aranburu · 9 min
30 Jun 2026
Engineering
A well-written rule set gets you to about 92%. The remaining 8% is not more rules — it is a different class of problem.
Rubén Ferreira · 8 min
19 May 2026
Compliance
Putting a language model near the general ledger is a governance question before it is an engineering one. Here is the architecture we could defend.
Klara Nowak · 8 min
14 Apr 2026
Compliance
If you hold funds for customers, the reconciliation is the control. Treating it as a reporting exercise is how the gap opens.
Klara Nowak · 7 min
5 Mar 2026
Treasury
Settlement lag is a treasury problem disguised as an operations problem. The reconciliation data already contains the answer.
Ane Etxeberria · 6 min
28 Jan 2026