Duffy Tilleman

San Francisco, California, United States

Not Accepting Guests

  • Last login about 2 years ago

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  • Software Engineer
  • No education listed
  • From Milwaukee, Wisconsin, USA
  • Profile 90% complete

About Me


To be constantly learning and doing.


I love travel, technology, food and clean energy. Right now I spend most of my days coding, but I've worked with solar cookers, been the operations director for a microfinance company and more.

Why I’m on Couchsurfing


I've hosted a few surfers with friends, hosted travelers in Ghana outside the couchsurfing site, and slept on many couches while travelling.


I like hiking, biking and sailing.

One Amazing Thing I’ve Done

I've built biogas digesters with communities in Tanzania that literally turn cow sh*t into cooking gas!

Teach, Learn, Share

I can teach you how to build a website, how to build a solar cooker and how to sail (at least a bit).

Countries I’ve Visited

Dominican Republic, Egypt, France, Mexico, Mozambique, Netherlands, New Zealand, Nicaragua, Peru, Spain, Tanzania, Togo

Countries I’ve Lived In

Ghana, United States

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