Steven Stemmer is a senior engineering executive with over 20 years of experience scaling technology organizations across fintech, healthcare SaaS, and highly regulated enterprise environments. Known for stepping in at inflection points where rapid growth begins to strain systems and processes, he specializes in helping companies continue to move fast—without breaking what matters. Steven has operated at VP, SVP, and non-founder CTO levels, partnering closely with CEOs, CPOs, and boards while remaining deeply hands-on across cloud-native infrastructure, Kubernetes, distributed systems, CI/CD, and AI-enabled development. His work focuses on modernizing architectures, strengthening DevSecOps and delivery discipline, embedding AI into production workflows, and balancing speed with compliance in complex environments. He has led engineering organizations supporting PCI-DSS and HIPAA requirements, including running a 200+ person global team at Paymentus processing over 600 million annual transactions through IPO, leading the full technology function at TSOLife for an AI-native healthcare platform, and spending 14 years at Western Union driving data and technology initiatives at global scale.