Fractional CTO and payments architect, based in Toronto and working mostly with US and UK clients through AZdev. Payments and regulated fintech, plus the evaluation and model-risk side of putting AI into a regulated institution.
Rails I work on: ACH, SEPA, UK Faster Payments, SWIFT and cards. Fifteen years, most of it inside regulated platforms. azdv.co has the history.
Both of these are mine, under the AZdev org. They share a habit that is the point of publishing them: neither one guesses.
- payment-rail-reference
US payment-rail parameters with the source URL and the date each value was
checked. Anything that cannot be confirmed against a primary source is recorded
in
gapsrather than asserted,supersedeskeeps the value that applied last year for whoever is debugging a payment from then, and a monthly job re-hashes every source page and opens an issue only when one actually moved. - finstatement-parser
Python reference implementation for structured JSON extraction from US bank and
credit-card statement PDFs. A field it cannot read comes back as
Nonewith the reason inparse_errorsand a confidence of0.0, and that behaviour is documented before the features because it matters more than the happy path.
Many repos on this personal account are forks from 2013 to 2018.
hugo-data-to-pages generates Hugo pages from data files. fx-cli is a dependency-free Rust currency converter with a 90-day anomaly gauge. tz-cli is a timezone CLI built on jiff, with the IANA database bundled into the binary so it does not depend on the host's timezone database.
azdv.co for work, azdv.co/blog for writing on payments and AI, and linkedin.com/in/asafzamir. I wrote From Coder To CTO (2024).