Michal Kristin

What distinguishes Milan is his ability to operate as both an experienced strategic engineer and a hands-on technical contributor, excelling in application architecture and technical leadership while remaining actively involved in feature deliveries, code reviews, and system optimizations.

Milan has driven several mission-critical initiatives, migrating hundreds of thousands of customers and millions of sessions seamlessly while enabling cross-selling opportunities, advancing SOC 2 compliance readiness, and enabling the Mobile App integration through unified authentication. Milan led the initiative to rebuild the legacy asynchronous message-based processing system, achieving a 99.9% availability target by utilizing auto-scaling and handling critical revenue drivers, including application webhook delivery and document processing. He led the zero-downtime AWS SES migration affecting millions of transactional emails, achieving <0.2% bounce and <0.02% complaint rates.

Beyond technical delivery, Milan made a significant impact on engineering excellence through the code review guidelines and deployment procedures. He introduced a risk management framework with real-time alerts, ADRs, and a Risk repository. His ability to facilitate design reviews bridging engineering, product, and business teams has been crucial to the team’s success.

Milan's efforts also resulted in infrastructure optimizations across AWS services, significant performance improvements, and load stabilization. He proactively designed an automated fraud prevention system, possibly preventing millions of fraudulent emails.

The combination of technical depth, strategic thinking, and collaborative approach demonstrates Milan’s exceptional engineering and technical leadership abilities. His contributions have had a measurable, lasting impact on the infrastructure, security posture, revenue systems, and the team’s processes.