Karol Hernik

- Email retargeting infrastructure (supply side platform, ad exchange, and agency trading desks + administration panels); responsible for development, maintenance, and client/business technical support - Product recommendation script; responsible for development in clean javascript using behavioral engine infrastructure - Data management platform panel; responsible mostly for development and maintenance of the frontend, and partially working on backend in java/go - Working with MySQL database

- Website’s administration panel; responsible for development of both front-end and back-end functionalities (backend is fully in PHP based on the Symfony 2 framework) - Supporting IT team with implementing new features on the existing infrastructure