Jonathan "Duke" Leto

Woodlawn, Northeast Portland

Jonathan "Duke" Leto is a software developer, published mathematician, git ninja and avid bicyclist living in Portland, Oregon. Duke is a core developer of Parrot Virtual Machine, Board member of Parrot Foundation as well as Community Manager. He helped create the PDX Hackathon user group and has been listed as one of the most influential coders in Portland, OR according to Github statistics.

Duke is also involved in Google Summer of Code and Google Code-In as an organization administrator, which involves organizing dozens of mentors who are teaching brilliant high school and college students about open source and how to be a part of an open source community.

Duke is the founder of Leto Labs LLC as well as working as a Bioinformatics Analyst at Boyce Thompson Insitute For Plant Research in Ithaca, New York. He received his Masters in Mathematics from University of Central Florida and enjoys discovering wheels within wheels.


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    Leto Labs LLC

    Leto Labs LLC specializes in researching, developing and deploying Free/Libre/Open Source (FLOSS) Software Solutions across various disciplines including automation, version control, scientific computing, visualization, databases and data analysis, simulation and even those quaint devices known as websites.


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    PDX Weekly Hackathon

    Come do strange things with computers amongst others whilst drinking fine Portland beer. Look for the row of geeks with computers in the back of the main room. All programming languages welcome. Come work on your own projects, work on others participants' projects, get advice, have fun, etc. You're encouraged to bring a computer, but can t...

  • Portland JavaScript Admirers

    Portland JavaScript Admirers is a group that meets monthly to discuss topics on JavaScript and ECMAscript ranging from client-side web frameworks, to functional and prototypal programming theory.

  • Androidpdx


    Description: A discussion group for users and developers of Android applications and Android-capable cellphones.

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    PLUG - Portland Linux/Unix Group

    We are a group of enthusiasts dedicated to teaching and learning about Linux and Unix. There is no membership fee to join. We welcome people of all levels of experience.

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    Portland Area Open Source Geospatial

    All are welcome! Our group ranges from the geo-curious to researchers, analysts, and überhackers that use GIS and mapping in their work. Have a problem you're trying to solve? tool/business you're developing? Website you need some help with? Come tell us about it! We are an official user group of OSGeo (http://www.osgeo.org/) and a speci...

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    Dorkbot PDX

    Q: Dork what? A: Dorkbot. It's people doing strange things with electricity. In Portland. Q: Are you dorks just about robots? A: No. Q: Do you dorks all build robots? A: No. Q: What, besides robots, do people in this group do? A: A lot of things. Among others: circuit bending, hardware hacking, genera...

  • Portland Perl Mongers

    Fun with Perl!

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    Open Source Bridge

    An all-volunteer run conference for open source citizens.

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    User Group dedicated to PostgreSQL and related tech.

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    CASH Music

    CASH Music is a nonprofit organization that builds open source digital tools for musicians and labels. Our mission is to help educate and empower artists and their fans to foster a more viable and sustainable future for music.


  • Calagator-site-icon


    A community-editable calendar of tech events in the Portland, Oregon area. The software the site runs on is published as open source and is in use in many other cities.