Sina Moghaddas, Mollie B.V.
Mollie undertook a major infrastructure initiative to expand from a single-region setup to a multi-region architecture on Google Cloud, aiming to enhance disaster recovery and platform resilience. With rapid growth, high transaction volumes, and a commitment to uptime, the shift was driven by the need for better fault tolerance and business continuity. The project involved significant technical preparation, including updating application code for multi-region awareness, upgrading edge load balancers, re-architecting database failover strategies, and refining disaster recovery runbooks. Execution was carefully planned, following incident response best practices and rigorous testing across environments. The initiative represented a critical step in Mollie’s evolution toward a more resilient, scalable cloud infrastructure—one capable of maintaining performance and availability even in the face of regional disruptions. This case offers valuable insights into the complexities of cloud expansion and the importance of preparation, iteration, and operational discipline when building for resilience at scale.
Sina is an infrastructure engineer with over 15 years of experience, spanning from early work setting up Linux servers—some of which are still in operation—to designing cloud architectures and leading technical projects for fintech companies. In recent years, his focus has been on building resilient systems and ensuring high service reliability at scale. With a strong background in both traditional and modern infrastructure, Sina brings a practical, experience-driven perspective to cloud engineering and platform reliability.
author = {Sina Moghaddas},
title = {Failover Without Fear: A Practical Guide to {Active-Active} {Multi-Region} Readiness},
year = {2025},
address = {Dublin},
publisher = {USENIX Association},
month = oct
}