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Hajo

Programming Experience:

  • HTML, CSS - since 1998

  • PHP, SQL - since 2001

  • JavaScript / EcmaScript - since 2004

  • XML / XSD / XSL / DTD - since 2007

  • Java - 2010 until 2013

  • Python - 2013 until 2016

  • API Design (REST / HATEOAS / JSON + schema) - since 2016