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JSON and the Confusion of Formats in Big Data
In the era of big data, the choices of data formats are dazzling, and the concept of data format itself can be confusing. Our data platform team found it helpful to breakdown this topic based on the...
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Frequentist Stopping Rules
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...
View Article“Hello, World!” (We’re Back)
We’re excited to announce the relaunch of the Credit Karma Engineering Blog. We’re up and running on a new platform, and we’ll be sharing a host of new content from our engineering team. What to...
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Credit Karma Data Explorer
We use big data at Credit Karma for data science modeling and analytical reporting, which helps us assess the efficacy of our products and services. We process and store data in Google BigQuery at...
View ArticleEmpathic Collaboration
My product-focused engineering team at Credit Karma works on a wide variety of projects: designing product experiences, building front-end features, spinning up back-end services and analyzing data....
View ArticleValue-Driven Software Documentation
Documentation is a tough sell to software engineers. We want to invent amazing features and write code, and when we finish doing that, we want to do it some more. We don’t want to take the time to sit...
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What’s the ramp? Displaying native app releases with ReactJS
Are you one pancake shy of a full stack? If your web-based internal tools have a distinctly by-engineers-for-engineers aesthetic, and you want to rapidly create more-attractive and intuitive apps,...
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Microservices: From REST to Thrift and GraphQL
Microservices architecture is very popular these days, and is coming into increasing use at Credit Karma. While there are many reasons to develop microservices, their use comes with a number of...
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Fraud protection at scale
At Credit Karma, we want our members to make financial progress — and we believe that the security of our members’ personal, financial and tax information is the cornerstone of that mission. This is...
View ArticleEffectively attending a tech conference
The word “conference” brings back fond memories. As a child I went to many of them, thanks to my dad. He’d attend atomic and molecular physics conferences across India and around the world quite...
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Embedded Web Apps at Credit Karma
The good things on the front end: EWAs Credit Karma’s cornerstone mission is to champion financial progress for all. From an engineering perspective, this means ensuring a seamless experience from...
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Identity-Aware Encryption
As architectures become more complex, hackers become more sophisticated and security becomes more important — and so data protection must evolve to meet the challenge. In the beginning, it may have...
View ArticleChecking Your Bias as a Leader
Introduction These past few weeks we’ve seen the Black Lives Matter movement create incredible energy and action around long-standing issues in American society. During this time, I have been...
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Getting Started with GCP Identity Management
Building products and services using Google Cloud Platform (GCP) has been a big ingredient in Credit Karma’s hyper growth. GCP’s PaaS and SaaS offerings allow teams and individuals to focus on their...
View ArticleA Framework for Interrupting Bias – Within Oneself, With Another, and Amongst...
. “Movements don’t emerge because everyone suddenly decides to face the same direction at once…they rely on social patterns that begin as the habit of friendship, grow through the habits of...
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Optimizing CircleCI
While it is always important to think about time and cost efficiency, some issues are only noticeable with scale and increased complexity. Build systems like CircleCI offer many configurations but...
View ArticleKarmahack 2021 Recap: What Makes a Good Hackathon?
In 2017, Credit Karma launched Karmahack, its first-ever hackathon. The event brought together more than 100 employees from across the business to develop the most compelling product concept within 72...
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