Freelance BI Consultant
As a freelance BI consultant at eBay Schibsted, I was brought in to maintain and further develop their data warehouse, where the work in practice ranged from onboarding new data sources (including Hadoop Hive) to identifying and clarifying discrepant figures in analysis and reporting, where the cause was often data quality errors, and where the solution required both technical cleanup and close coordination within the team, ensuring data remained stable and usable as new needs were continuously added.
Other parameters: Scope: Full time; Employment type: Freelancer via broker (Mjølner).
A large part of the task involved ongoing maintenance, where I, alongside the DWH team in Finance, ensured that the data warehouse ran stably, and that errors and discrepancies were handled continuously, allowing operations and further development to run in parallel without one consistently tipping over the other.
Further development included onboarding new data sources, such as data from Hadoop Hive, where direct queries were made against Hive, landed in staging, and subsequently further processed into the data warehouse, making new datasets available in a controlled pipeline rather than being solved ad hoc.
When figures looked strange in analysis and reporting, it typically involved data quality, and the work consisted of finding and clarifying the cause, getting the discrepancy handled, and ensuring that subsequent data was again consistent, while prioritization and clarifications were addressed in dialogue with the team to ensure efforts were placed where they made the most sense.
In Denmark, eBay Schibsted was linked to the online classifieds business behind the marketplaces DBA.dk and Bilbasen.dk, which for many years have been central platforms in the Danish classifieds and second-hand economy, where private individuals and companies meet to buy and sell everything from small items to cars. During my period at the company, the organization changed its name, structure, and communication towards Schibsted, while the platforms continued to run as before, because marketplaces of that size must, in practice, remain stable and continuous regardless of what happens in the ownership group and corporate structure. DBA.dk still falls under Schibsted's marketplace business, and DBA.dk and Bilbasen.dk remain the most well-known brands in the Danish setup.
For more information, visit dba.dk and bilbasen.dk.