Taming the Storm: Building Groww’s Internal Chaos Engineering Platform Introduction At Groww, reliability has always been a core engineering priority. As we scaled to millions of users and expanded …

The Groww Engineering Blog offers insights, case studies, and technical articles on building scalable and reliable financial technology platforms. Covering topics such as backend architecture, microservices, and fintech innovations, the Groww Engineering Blog provides resources for software engineers and fintech professionals seeking to build robust and secure financial products and services.

Groww Engineering

Groww built an internal chaos engineering platform to validate system resilience before high-traffic events like IPO listings. The platform uses a dedicated load-test Kubernetes cluster isolated from production, a traffic replayer that mirrors real production traffic, Argo Workflows as the orchestration control plane, and Chaos Mesh for fault injection. Experiments include Redis latency injection, SQL downtime simulation, pod kills, and network partitions. Observability is handled through Groww's internal platform Olly, which annotates chaos events on shared dashboards. The platform was used to validate IPO-facing services, confirming autoscaling behavior and graceful degradation. Future plans include CI/CD integration, SLO-aware automatic experiment halting, and automated resilience reports.

Taming the Storm: Building Groww’s Internal Chaos Engineering Platform

Get Groww Engineering Team ’s stories in your inbox

2. Traffic-Replayer: The Foundation of Realism