Ayman Madkour

Incorta is a very successful data analytics product that provides data analysts with a simple interface to collect data from multiple sources and collect it all in a central in-memory data warehouse; where they can run queries and build graphs, charts and other visualizations very quickly.

I was responsible for the ETL part of the product. I designed and developed a framework that allows pluggable components—called connectors—to be added to the product. A connector is responsible for extracting data from a specific source (e.g., a database or web service).

By creating an extensible framework for data extraction, it became possible to add dozens of new connectors easily.

Etisalat Egypt is a mobile operator and it has stores in many locations. They wanted an application to be used by auditors who visit these stores for inspection.

The store auditing application had two parts: a back-end and administration interface part which was used by administrators to specify settings and auditing rules and criteria. The back-end also included a REST service.

The second part is an Android app that is used by the auditors onsite, where they could fill certain forms and submit them to the back-end via the REST service.

JGears Validator is an open-source Java library for data validation. It supports different kinds of validation: primitive validation (numbers, text strings), regular expressions, size, collections of values, objects, and more. It also supports custom as well as default error messages for invalid input.