Frequentist Stopping Rules

Robert Neal

Stopping rules are what make most frequentist (a.k.a. classical) statistical tests valid. Unsurprisingly, they tell you when to stop an experiment, and equally unsurprising, they are rules that must be followed in order to get statistically valid experiments from statistical tests that depend on them. However, despite stopping rules being critical to the interpretation of […]

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Making an Impact as an Intern: Building Web Push Notifications

Luba Kravchenko

When I started at Credit Karma, it was my first internship outside of Toronto. As a Computer Science student at the University of Waterloo, I have the opportunity to complete six internships; Credit Karma has been my third. So having done this two times before I had learned one very important thing: what you get […]

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Building Competing Models Using Apache Spark DataFrames

Abdulla Al-Qawasmeh

  Tech Talks: Building Competing Models Using Apache Spark DataFrames from Credit Karma on Vimeo. In this video, Abdulla Al-Qawasmeh, Engineering Manager, talks about the important role model calibration plays in the performance of Credit Karma’s recommendation system, and how to build predictive recommendation models using Apache Spark DataFrames.

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How Engineering Rotation Programs Can Help Teams Scale

Shawn Doria

Working at a fast growing company while tackling high visibility, cross-functional projects can be challenging to navigate as an engineer. Teams easily become siloed. Knowledge and expertise can be slow to spread among many groups. The rapid growth and blurring of interactions between tools and services drive us to collaborate more so we can innovate […]

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How We Revolutionized the Frontend Technologies at Credit Karma

Rima Kanguri

We’ve made major changes to how we build the web UI at Credit Karma – and we’re still going. Over the past year, we’ve rebuilt the site in ReactJS and Redux and launched new experiences on both desktop and mobile web, using single page architecture. Our revised frontend technology stack includes ReactJS, Redux, webpack and […]

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