CHAU PHUOC DUC
Ho Chi Minh City
Summary
Backend Engineer with 2 years experience building high-scale microservices processing 2,200+ API endpoints across 4 production services. Expertise in Java 21, Spring Boot 3.x, Stripe payments, Neo4j graph database, and event-driven architecture (RabbitMQ). Managed 216 database migrations and 4,200+ Java source files. Proven ability to deliver enterprise-grade solutions for authentication, payment processing, CRM, and HRM domains.
Overview
2
2
years of professional experience
1
1
Certification
Work History
Junior Backend Engineer
Accessed
Ho Chi Minh City
07.2024 - Current
- Promoted from Fresher to Junior. Architected four enterprise microservices for a multi-tenant SaaS platform. Authentication Service – Centralized auth with OAuth2/JWT, 2FA (AeroGear OTP), device tracking (MaxMind GeoIP), RBAC, and reCAPTCHA v3. 50+ Flyway migrations. Payment Service – Full Stripe integration (subscriptions, treasury, refunds). RabbitMQ fanout for real-time synchronization across four services. MRR analytics dashboard, automated invoice PDFs (iText + AWS S3). Party/CRM Service – Neo4j graph database with Spring Data Neo4j. Reactive search (WebFlux) with fuzzy matching. Redis caching reduced DB load ~40%. 30+ locale support. HRM Service – 200+ domain entities covering payroll, tax rules engine (progressive/flat brackets), timesheet management, performance reviews. 80+ Flyway migrations.
Fresher Backend Engineer
R2S Corporation
Ho Chi Minh City
12.2023 - 06.2024
- Developed RESTful APIs using Spring Framework and MySQL; Collaborated in Agile sprints for feature delivery
- Created API documentation (Swagger/OpenAPI); Implemented unit tests with JUnit/Mockito
- Tech: Java, Spring Boot, MySQL, JUnit, Mockito, Swagger, Git
Education
Bachelor of Information Systems -
UEL - VNU HCMC
01.2025
Skills
- Java 21
- Spring Boot 3x
- Spring Security 6
- Spring WebFlux
- Hibernate/JPA
- Microservices
- Event-Driven
- RESTful APIs
- OAuth2/JWT
- Multi-tenant RBAC
- PostgreSQL
- Neo4j
- Redis
- MySQL
- Flyway
- Stripe API
- AWS S3
- Google OAuth2
- Facebook OAuth2
- Apple OAuth2
- Docker
- Git
- Maven
- CI/CD
- JUnit
- Mockito
- Swagger
- OpenAPI
Certification
- TOEIC L&R, 755/990
- TOEIC S&W, 260/400
Projects
Website Job Finder, Full-stack, 4, 06/01/23 - 12/31/23, Built job platform with OAuth 2.0 (Facebook, Gmail), JWT + refresh token, Firebase Storage, cron job notifications, React, Spring Boot, MySQL, Firebase, JWT, OAuth 2.0 Mobile Phones Selling App, Backend, 2, 04/01/23 - 05/31/23, Created RESTful APIs with Spring Security RBAC, MySQL database design, Firebase Storage integration, React Native, Spring Boot, MySQL, Firebase
Personal Information
Title: Junior Backend Engineer
Timeline
Junior Backend Engineer
Accessed
07.2024 - Current
Fresher Backend Engineer
R2S Corporation
12.2023 - 06.2024
Bachelor of Information Systems -
UEL - VNU HCMC