Tech stack at Klaviyo

Technologies mentioned in active postings over the trailing 26 weeks.

Updated Sep 14, 2026

Klaviyo appears across 7 technologies in its active postings. git is the most common, with 9 active postings.

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• git

  9

  devtool

• typescript

  9

  language

• rust

  6

  language

• javascript

  3

  language

• ruby

  3

  language

• go

  1

  language

• next.js

  1

  framework

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