Tech stack at Duolingo

Technologies mentioned in active postings over the trailing 26 weeks.

Updated Oct 22, 2026

Duolingo appears across 7 technologies in its active postings. express is the most common, with 3 active postings.

View the Duolingo overviewSee roles Duolingo is hiring for

• express

  3

  framework

• go

  3

  language

• typescript

  3

  language

• git

  2

  devtool

• python

  2

  language

• next.js

  1

  framework

• rust

  1

  language

← Back to Duolingo overview