Looking for a German/English tandem (Hamburg)

I moved to Hamburg two years ago and took a year of German classes but being self employed I am just not spending enough time speaking German to make progress. I would like to find a native German speaker interested in working on their English and helping me with my German.

I am a native of California and can offer help with both conversational and business English. I have spent my career in Marketing in the consumer goods and medical device industries and can offer expertise in those areas as well.

David