Above, some tableau reports I have done (2017, 2018).
Service Desk & Jira Data Marts (2014)
Whilst at Catlin I developed some data-marts, cubes and reports for our helpdesk (assyst) and issue management (jira) applications. The solution involved summary reports with drill-down functionality. Below is a sample of the reports:
Implementing Jira to replace spreadsheet issue tracking (2015)
At Aerion, I setup a cloud-hosted Jira instance for recording both BAU and project work.
Copies of certificates I have attained can be found here.