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  • Arctic Code Vault Contributor



Hi there fellow nerds 👋

Joe Karlsson is a software engineer turned Developer Advocate at MongoDB. He comes from the frozen tundra of Minneapolis, Minnesota (and yes, it does get really cold here, and no, not everyone here has the accent from the movie, Fargo). Joe has been primarily a Node and JavaScript engineer. He has been writing, teaching, and talking about code his entire career. Sharing what he knows and continuing to learn about programming is truly the thing he loves doing the most.

😄 Pronouns: He/Him/They/Them


  1. Common data structures and algorithms implemented in JavaScript

    JavaScript 130 33

  2. Does your favorite film pass the test?

    JavaScript 20 4

  3. A complete list of all the ways a Client and Server communicate with each other in JavaScript and Node.

    JavaScript 29 8

  4. Realtime Spotify Player built with React.

    JavaScript 86 63

  5. Welcome to to world of IoT (Internet of Toilets 🚽). This is the code you will need to setup your very own internet connect kitty litter box!

    HTML 14 1

  6. Python based sudoku generator that can create unique Sudoku board based on 4 difficulty levels. This code also includes a brute force sudoku solver that is capable of solving even the most difficul…

    Python 43 25

152 contributions in the last year

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Mon Wed Fri

Contribution activity

January 2021

3 contributions in private repositories Jan 1 – Jan 19

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