Nguyen Huy Hung

SLC (Student Life Cycle) — Java 21, Spring Boot, Next.js (React), PostgreSQL · Tech Lead

• Applied Domain-Driven Design with Hexagonal Architecture and Clean Architecture in a multi-module Maven codebase, enforcing strict separation between domain, application, and infrastructure layers
• Conducted end-to-end system analysis and design — including solution architecture, network architecture, and database data modeling — to establish clear technical foundations before implementation
• Implemented a Backend for Frontend (BFF) pattern with dedicated authenticators per service — OAuth2 for third-party integrations and JWT-based token auth for internal services — to meet diverse client security requirements
• Designed and operated a blue-green deployment pipeline on the production environment, enabling zero-downtime releases and instant rollback capability
• Implemented method-level authorization with Spring Security and a custom PermissionEvaluator to enforce fine-grained access control across API endpoints
• Facilitated requirement-gathering meetings with stakeholders, delivered hands-on user training sessions, and provided basic-level team supervision and progress tracking

SRM System (Student Management) — Lumen, Laravel, React, Nuxt.js (Vue), PostgreSQL · Tech Lead (later phase)

• Started as an individual contributor and later took Tech Lead responsibilities in a subsequent phase
• Built and maintained backend services with Lumen and Laravel, integrated with React and Nuxt.js clients
• Designed Modular Monolith architecture with composer-merge-plugin
• Built a shared platform core with base entities, repositories, hydrators, and event dispatching
• Implemented action-based use cases with DTOs and self-hydration for entity mapping
• Integrated Firebase push notifications and QR Bank payment APIs
• Improved observability with logging and tracing, and optimized data access to prevent N+1 query patterns

Moodle Integration — PHP, Moodle

• Reverse-engineered Moodle autoload mechanism (Frankenstyle naming convention)
• Developed local plugin with external functions and web service APIs

Financial Management Platform — Laravel, React, MongoDB

• Built a modular Laravel platform with a PSR-compliant PHP core to keep domain logic reusable
• Modeled flexible business entities with an Entity-Attribute-Value (EAV) schema
• Designed an Event-Driven Architecture with NATS for asynchronous workflows and real-time notifications
• Implemented lazy loading to improve perceived frontend performance