
Intermediate
Design a Notification System to send millions of Emails
In-depth course on designing and building a Notification system capable of sending millions of emails at once. You'll learn how to design an event-driven architecture with message queues, build high-performance email pipelines, handle rate limiting, retry, and dead letter queues, ensure deliverability with SPF/DKIM/DMARC, and deploy a production-ready system. Combine theory with hands-on practice using Kafka, Redis, PostgreSQL, Amazon SES, SendGrid. Suitable for Backend Engineers, System Architects who want to solve the problem of sending large-scale emails in practice.

Intermediate
FinTech & Payment Platform Architecture
Comprehensive course on FinTech and Payment Platform system architecture from basic to advanced. Including Payment Gateway, Digital Wallet, Double-Entry Ledger System, Fraud Detection, AML/KYC Pipeline, Core Banking Architecture, Lending Platform. Practical integration with VNPay, MoMo, ZaloPay, Stripe. Compliant with PCI-DSS, PSD2 and State Bank of Vietnam regulations. Case studies from leading payment systems in the world and Vietnam. Updated according to FinTech trends 2026.

Intermediate
Multi-tenant SaaS Platform architecture
Comprehensive course on Multi-tenant SaaS Platform architecture from basic to production-ready. Includes Tenant Isolation Strategies, Subscription & Billing Engine, Plugin/Extension Architecture, White-labeling, Onboarding Automation, Feature Flags, Usage Metering, and Self-service Admin Portal. Design a SaaS system that meets thousands of tenants at optimal costs. Case studies from Slack, Notion, Atlassian and leading SaaS platforms. Updated 2026.

Intermediate
System Architecture: From Zero to Hero
The System Architecture course is comprehensive from basic to advanced, helping you master how to design large-scale systems. Includes fundamental knowledge of Scalability, Availability, Consistency, architectural patterns such as Microservices, Event-Driven, CQRS, along with infrastructure components such as Load Balancer, CDN, Caching, Message Queues, Database Scaling. The course combines theory with real-life case studies from Netflix, Uber, Twitter and other large systems. Updated according to modern architectural trends 2026.