
How Calculus Improved Mobile App Performance Testing
Fixed timeouts are slow. Vision models are expensive. Turns out high-school calculus is just right.
Finance & banking
QA for banks, fintechs, and payments
Insurance & claims
QA for carriers, brokers, and insurtech
Media & entertainment
QA for publishers and streaming
Retail & eCommerce
QA for storefronts, cart, and checkout
SaaS Apps
QA for multi-tenant B2B software
Travel & Hospitality
QA for booking, GDS, and reservations
About
Grigory Khromov is a Founding Research Engineer at Klarent, where he has spent the last several years building the company's autonomous QA technology, from fine-tuning and benchmarking to productionizing the language models behind it. He holds an MSc in Data Science from ETH Zürich, where his thesis investigated the Lipschitz continuity of neural networks, and a bachelor's degree in Informatics and Computing Systems from the Higher School of Economics. Before joining Klarent, he spent over four years on university research projects and worked as a Teaching Assistant at ETH Zürich and the Higher School of Economics.
Articles by Grigory Khromov
2 published
Fixed timeouts are slow. Vision models are expensive. Turns out high-school calculus is just right.

A technical dive into a sneaky numerical instability issue with a custom loss function and how math tricks helped to solve it.