Parth Mistry is a Member of Technical Staff at TestMu AI (formerly LambdaTest), building SmartUI, the visual regression testing product. He developed and owns the SmartUI CLI, a modular TypeScript tool built on Playwright for multi-browser automation, and built the Storybook CLI for visual regression of UI components. He maintains cross-language SDKs in Python, Java, Ruby, C#, and Node.js, and engineered a Node-based visual rendering service on Kafka, Redis, MySQL, and S3.
His migration of that service to an event-driven, KEDA-autoscaled architecture improved execution speed by 60% and cut annual infrastructure cost by $9,600. He also built the end-to-end SmartUI integration with KaneAI. Parth is a Google Summer of Code 2024 contributor and an alumnus of IIT Jodhpur.
Published Articles: 2
Articles by Author
Playwright
Playwright Examples: 14 Runnable Scripts in JS and Python | TestMu AI (Formerly LambdaTest)Fourteen Playwright script examples in JavaScript and Python, each executed against a live page: forms, dropdowns, iframes, tables, mocking, and auth reuse.
August 6, 2026
Software Testing
How to Do Visual Testing Without Code | KaneAI by TestMu AI (Formerly LambdaTest)Catch visual regressions across browsers and real devices in plain English. Test for broken layouts, shifted elements, and style bugs with no code.
July 21, 2026