Juju – Search Engine Clickrate Optimization

Dr. Richard Bergmair

Data Scientist
AWS
Python
Redshift
At Juju, I was the sole person responsible for conducting clickrate optimization based on query logs and related data. I conducted a series of one-off model-fitting projects, and was also responsible for the design, implementation, and continual improvement of the underlying infrastructure.
Juju is one of only a handful of job search engines and ad-exchange platforms for job-postings in the U.S. Given its cost-per-click revenue structure, clickrate optimization is of great importance to Juju.
The greatest technical challenge was the sheer scale of the dataset, with the core analytical table having well over a hundred attributes and hundreds of billions of records.
Throughout my time at Juju, I worked closely with the CEO, who often sought out my contributions, even on non-technical subjects. At one point, more than half of the Juju technical staff consisted of people interviewed and selected by me.
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