Robert Oleś is an experienced software developer specializing in web and mobile application development. Currently serving as a Senior React Native Developer at Callstack since September 2025, Robert previously held the same title at Northmill Bank, where responsibilities included developing a modern banking application and implementing components for Storybook. Prior to that, Robert worked at Appjobs as both a Mobile Application Developer and Frontend Developer, creating a comprehensive app for gig workers. Robert's earlier roles include Senior Web Developer positions at Fotako, where a bespoke online shop was developed, and at SerwerSMS.pl, focusing on website and CMS maintenance. Robert's career began at OS3 as a Senior Web Developer, delivering tailored web solutions for various clients. Robert holds an M.Sc. in IT from The Silesian University of Technology, earned between 2003 and 2009.
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