Olga Rún Kristjánsdóttir is a software architect at Ljósleiðarinn, Iceland's wholesale fiber network operator, with over 13 years of experience building reliable systems and resilient teams. She focuses on domain modelling, integration design and making complex systems understandable to the people who build and run them. With a master's degree in data science, she combines deep technical insight with a passion for structure, calm and ownership in engineering culture.