Case Study: World’s Oldest and Largest Bank achieves 4x faster release cycles and massive test scaling with Sauce Labs

Financial Services Organization Accelerates Release Cycles by 4x Without Sacrificing Quality or Security with Sauce Labs

One of the world’s oldest and largest banks tasked its New York digital team—responsible for the flagship website and mobile app serving 77 million clients—with speeding up releases without sacrificing quality. As they moved to CI/CD, testing became a bottleneck: a mostly manual regression in 2017 ran 2 million transactions over six days, their small automated suite had a 50–60% failure rate, and internal infrastructure couldn’t scale fast enough.

The team automated tests with Selenium and Appium and partnered with Sauce Labs’ Continuous Testing Cloud for scalable browsers, OSes, and mobile emulators plus expert support and security. Today they run about 2.6 million tests per week; a quarterly cycle that once ran 2 million transactions in six days now runs 8 million in 36 hours (4x faster), enabling faster feature delivery, fewer bottlenecks, and higher confidence in digital quality.