Avenash Kumar · New York, USA
I design and run real-time fraud and payment systems that decide in under 200 milliseconds, and I build privacy-first tools that do their work entirely in your browser. This site is where I write about the engineering, share videos, and show the products.
Three products I designed, built, and run. Two are tools that never upload your files; the third is a small shop born in my daughter’s first year.
A complete JSON workbench: formatters, validators, converters, schema tools, code generators, a graph view, a jq playground, and JSON-LD processing. Everything runs in the browser; nothing is uploaded.
Merge, split, sign, redact, and read text off a scan, all in your browser. PDF work usually involves contracts, statements, and identity documents, so the files stay on your device.
The storefront for CubCozyCrafts, my Etsy shop selling instant-download printables for a baby's first year: nursery wall art, milestone cards, newborn care logs, and planners in a soft watercolor woodland style.
Notes on software engineering, programming languages, fraud and payments, and applied AI.
I am drafting the first articles now, starting with how a fraud decision runs in under 200 milliseconds. In the meantime, the videos and project case studies are live.
Talks and walkthroughs from my YouTube channel, on AI applications, Kubernetes, and the Java platform.
Most of my career has been spent on systems that cannot afford to be slow or wrong. Away from the keyboard I am a new dad, which is how a fraud engineer ended up designing nursery wall art at 2 a.m. The full story is on the resume page.
I read every message. The fastest route is email, and the contact page has the rest of my profiles.
