Chaos Engineering is increasingly essential for enhancing the reliability of hybrid cloud infrastructures, as companies shift from questioning whether to adopt the cloud to determining which provider to choose, among AWS, GCP, and Azure. While hybrid strategies help mitigate vendor lock-in and offer redundancy during cloud provider outages, they require proactive testing to ensure failover mechanisms are effective. The practice of Chaos Engineering, which involves intentionally introducing failures in a controlled environment, helps organizations reduce the mean time between failures (MTBF) and increases confidence in their system's resilience. By simulating disasters, companies can avoid disruptions to their services and minimize potential impacts on customers and revenue. Gremlin's automated reliability platform is highlighted as a tool that enables companies to identify and address availability risks before they affect users, underscoring the importance of integrating reliability testing into CI/CD pipelines.