Overview

Architected an event-driven offboarding system for BSP regulatory compliance that processes 30 million user accounts — charging monthly maintenance fees to unverified accounts.

Architecture

Designed a hybrid architecture combining two processing modes:

• Real-time: Kafka event streaming for KYC status monitoring — account state changes trigger immediate offboarding events
• Batch: Kubernetes CronJobs for monthly fee collection runs across the full account population

Key Contributions

• Designed logical/physical/data flow/sequence diagrams, network diagrams, database schemas, pseudocode, and performance testing specs
• Collaborated with 3 backend engineers through detailed ticket specifications and acceptance criteria
• Balanced throughput requirements with BSP compliance deadlines and zero-disruption constraints

Tech

Java Spring Boot Apache Kafka Kubernetes AWS RDS Event-Driven Architecture