FinTech Infrastructure
Re-engineering
A complete overhaul of a legacy financial core, rebuilding it into a high-performance distributed system capable of handling millions of concurrent transactions.
The Challenge
Helios Core was struggling with a decade-old monolithic codebase that could not keep up with user growth. Transaction latency was increasing, and deployment cycles took days.
They needed a way to decouple their core services without disrupting the millions of dollars moving through their platform daily.
Our Approach
We transitioned their architecture to an event-driven microservices model using Go and gRPC.
Event Sourcing
Implemented Kafka for reliable event streaming, ensuring zero data loss during high-load periods.
Infrastructure as Code
Fully automated infrastructure using Terraform, reducing deployment times from days to minutes.
Outcome
The new system processed 10x the traffic volume during stress tests with 40% lower latency.
- — 99.999% uptime achieved post-launch
- — Reduced infrastructure spend by 25%
- — Deployment frequency increased to daily
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