Sebastian Seilund

Co-founder and CEO at Userflow

Sebastian Seilund has been working in the tech industry since 2005. From 2005 to 2007, they worked as a Developer at Relation Technology, where they provided consulting services to small companies. In 2007, they became the Lead Developer at Addealing.com. From 2009 to 2010, they worked as the CTO at Slideshop. From 2010 to 2016, they were the CTO, co-founder and owner of Billy, where they built accounting software that currently handles 7,500 active paying users. Sebastian also had up to 6 developers working with him, and migrated the monolith to polyglot microservice architecture using Mesos, Marathon and Docker. From 2016 to 2017, they were the CEO and owner of Sdream. Sebastian then worked as a Software Engineer at Google from 2017 to 2018. Currently, they are the Co-founder and CEO of Userflow.

Sebastian Seilund attended IT-Universitetet i København from 2008 to 2011, studying Software Engineering. Prior to that, they attended Falkonergårdens Gymnasium from 2003 to 2007.

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Timeline

  • Co-founder and CEO

    April, 2018 - present

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