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Microservices Architecture — Fintech Platform
Scalable backend with Go and Node.js microservices, event sourcing, and Kubernetes orchestration.
Tech Stack
Screenshots
Design and implementation of microservices architecture for a fintech platform. The system handles financial transactions, KYC identity verification, and regulatory report generation — processing thousands of operations per minute with high availability.
Implemented Services
- Auth Service (Go): OAuth 2.0 authentication, MFA, session management
- Transaction Service (Go): Payment processing with Saga pattern
- KYC Service (Node.js): Identity verification with OCR and biometric validation
- Notification Service (Node.js): Email, SMS, and push notifications
- Reporting Service (Go): Batch regulatory report generation
Tech Stack
- Languages: Go (critical services), Node.js (integration services)
- Communication: gRPC (sync) + RabbitMQ (async/event sourcing)
- Orchestration: Kubernetes on AWS EKS
- Databases: PostgreSQL (transactional), MongoDB (documents), Redis (cache)
- Observability: Prometheus + Grafana + Jaeger (distributed tracing)
- CI/CD: GitHub Actions → Docker → ArgoCD → K8s