Dennis Winter, CTO of Börse Stuttgart, shares insights from his extensive fintech experience, previously serving as CTO of SolarisBank. He discusses scaling tech in regulated industries, emphasizing security, compliance, and culture. Dennis highlights the importance of building resilient infrastructure early, managing technical debt, and fostering team ownership. He explores the evolution of team structures as companies grow, the challenges of implementing BYOD policies in banking, and navigating compliance complexities with a focus on collaboration and automation.