Bjoern Kiesbye

Background

About Bjoern Kiesbye

I’m a competent professional with profound knowledge in Server Application, Relational Database and Distributed Database development, with experience in a variety of high-level, script and markup languages such as SQL/plpgsql/plsql,Python/pyspark, Java, C / C ++, Tcl, JavaScript, XML/XSD/DTD, HTML, JSON. Since 2001 I have gained extensive experience in software and database development. At first, in addition to the study of business mathematics at the University of Hamburg in part-time, and after leaving University in 2004 I have been working in full time. Since 2015 I am employed as Database Developer / Data Engineer at Motionlogic GmbH (100% owned by T-Systems GmbH) where I was responsible for the Lagacy Geographic Analytic System for Cellular Radio Network Events, which was based on Postgres Databases. I was responsible to develop, administer and operate up to five installations. The largest Database is greater than 90TB, growing by 0.25 TB or 0.5 Bill. Events, creating up to 4 Mio. Reports per Day. As lead Developer I was responsible for the extension or improvement of the Data Schema, working with the Data Since Team to implement and optimize reporting algorithms in SQL/PlPgSQ, support DevOps in optimizing hardware selection and Server configuration. Participation in Roadmap Planing, giving my insights and time estimates for new features and customer deliveries. I also provide support to other Teams internal and external developing Applications which are Database dependent, this included Several Trips to the Telekom Innovation Laboratories in Tel Aviv. In the past 17 years I was able to gather extensive experience developing Postgres (version 7.2 – 11)) based Server Applications, for high performance and high availability Systems for productive use. The experience is not limited to the Development of application specific data schema, and SQL Query design, but as well included the development, optimization and administration of Postgres/Slony-I Clusters,