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Christian Seifert
German software developer and architect, teamlead, requirements engineer, business analyst and conference speaker (https://www.youtube.com/channel/UCrjgSZYxhyAOJibUOkuWJLw)
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Cologne, Germany
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Member for 9 years, 9 months
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1 profile view
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Last seen Nov 6 '17 at 14:16
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Nov 6 '17
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Oct 10 '17
