The Twitter Engineering Blog

Information from Twitter's engineering team about our technology, tools and events.

Results from Engineering for: December 2015

Detecting and avoiding bucket imbalance in A/B tests

Some simple techniques to detect potentially biased implementations of A/B tests.

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Sunsetting SHA-1

Implementing SHA-256 where we can, and addressing older certificates as needed.

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How we break things at Twitter: failure testing

The design, architecture and implementation of Twitter’s failure testing framework.

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Finatra 2.0: the fast, testable Scala services framework that powers Twitter

Introducing Finatra 2.0: a high-performance, scalable, testable framework powering production services at Twitter.

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