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![Greg Herlein](https://sphere.it/wp-content/uploads/2021/03/greg-copy-Greg-Herlein-150x150.jpg)
Greg Herlein
Director, Site Reliability Engineering, Customer Experience at Cisco
Currently Director, Site Reliability Engineering at Cisco Customer Experience. Linux user and contributor since 1994. Operations first. Robotics enthusiast.
![John Walker](https://sphere.it/wp-content/uploads/2024/04/1659541578472-150x150.jpeg)
John Walker
Head of Data Science and Engineering at MS Amlin
Head of Data Science and Engineering at Mitsui Sumitomo Insurance Group
![Marcin Szeliga](https://sphere.it/wp-content/uploads/2021/03/Marcin_Szeliga-150x150.jpeg)
Marcin Szeliga
Data Scientist and Machine Learning practitioner Independent consultant
Data Scientist and Machine Learning practitioner. Independent consultant solving customers data-related problems. Since 2006 invariably awarded Microsoft Most Valuable Professional title, previously in the Data…
![Umit Mert Cakmak](https://sphere.it/wp-content/uploads/2021/03/Umit_Mert_Cakmak--150x150.png)
Umit Mert Cakmak
Senior Data Scientist & Machine Learning Engineer at IBM
Umit Mert Cakmak is a Manager and Senior Data Scientist in IBM Data Science and AI Elite Team based in the UK. Umit excels at…