I have been working with open source search platforms for 8 years now of which the ELK stack is the most prominent. Starting from data retrieval from multiple sources like Files, databases, queues , events over network using tcp/udp , transforming the data in the ways which it needs to be stored, to indexing and making the data searchable in elastic search and visualising in Kibana , i have extensive hands on experience in building heavy data pipelines and visualisation.