Case Study: Banco de Crédito e Inversiones (BCI) scales MACH to millions and cuts errors to 0% with New Relic

BCI Uses New Relic to Ensure Its MACH Mobile Payment App Keeps Pace with Rapidly Expanding User Base

Banco de Crédito e Inversiones (BCI), one of Chile’s largest banks, launched MACH—a cloud-native, mobile-first prepaid account—to reach underserved customers and drive digital payments. As MACH rapidly scaled (1.5M users and growing), the team needed end-to-end visibility into its 30+ microservice environment to maintain user experience, speed up issue resolution, and prevent costly downtime during huge traffic spikes.

BCI adopted New Relic (APM, Mobile, Insights) across development, staging and production to empower DevOps and instrument CI/CD pipelines. The monitoring solution enabled fast diagnosis of external and internal bottlenecks, supported a viral surge of 100,000 registrations in two days, reduced average response time by 30% (300ms → 200ms), cut error rate from 3.5% to 0.0%, eliminated potential hourly lost transactions, and unlocked cost optimizations (about 30% savings, ~1.4M CLP/month).

Banco de Crédito e Inversiones

Daniela Constanza Muñoz

Developer