Professional Summary

  • Senior Fullstack Software Engineer with 8+ years of experience building scalable e-commerce, fintech, and IoT platforms across APAC.
  • Strong expertise in Ruby on Rails, Vue/Nuxt, and cloud-native architectures.
  • Certified Scrum Master and AWS Solutions Architect Associate with a proven track record of delivering high-traffic systems serving millions of users worldwide.

Professional Experience

SEPHORA
Senior Fullstack Developer
Singapore 04/2021 - Present
  • Designed and implemented secure authentication and user identity systems
  • Integrated CRM platforms, improving engagement and enabling real-time customer data synchronization
  • Developed loyalty and rewards services, powering points, redemptions, and personalized offers
  • Optimized backend services to scale for millions of global users
  • Led migration from a monolithic to microservices application, applying BFF and event-driven design
  • Facilitated Scrum ceremonies, driving major initiatives as Scrum Master to ensure timely, high-quality delivery
  • Integrated AI model outputs into APIs, enabling personalized and data-driven features
Tech stack: Ruby on Rails, Vue, Nuxt, AWS, RabbitMQ, Java Spring, NewRelic
AIRHOST
Fullstack Developer
Singapore 12/2019 - 04/2021
  • Built IoT-powered smart-lock management for property bookings
  • Integrated multiple smart lock providers (RemoteLock, KeyWe, Blockchain)
  • Developed OTA integrations (Ctrip, Booking.com, Expedia, Airbnb, Rakuten)
  • Implemented coupon strategies and tax modules for booking flows
  • Designed APIs for third-party integrations
Tech stack: Ruby on Rails, jQuery, PostgreSQL, AWS
IPCOIN EXCHANGE
Backend Developer
Vietnam 08/2018 - 12/2019
  • Developed core trading engine for a cryptocurrency exchange (Binance-like)
  • Integrated blockchain wallets (BTC, NEO)
  • Built distributed systems using Docker, Kubernetes, Kafka, RabbitMQ
  • Designed scalable microservices, ensuring fault tolerance and maintainability
Tech stack: Ruby on Rails, PostgreSQL, Blockchain, Docker, Kubernetes, Kafka, RabbitMQ
CODE ENGINE STUDIO
Fullstack Developer
Vietnam 11/2016 - 06/2018
  • Built a time-tracking SaaS (similar to Toggl)
  • Developed rental home management app (Zilly, now Tellus) with lease, property, and chat modules
  • Implemented Elasticsearch integration for search and analytics
  • Maintained CMS platforms for US clients
Tech stack: Ruby on Rails, Angular, PostgreSQL, Elasticsearch, SendBird, SwaggerUI

Skills

Languages & Frameworks

Ruby on Rails, Go, Java Spring, Vue, Nuxt, Angular, TypeScript, ...

Databases & Caching

PostgreSQL, Redis, Memcached, DynamoDB, ...

Cloud & DevOps

AWS ASA, Docker, Kubernetes, NewRelic

Search & Analytics

Elasticsearch

APIs

Swagger / Openapi, Postman

Messaging & Streaming

RabbitMQ, Kafka

Testing & Tools

RSpec, Cucumber, Git, TDD

Specialized

AI, Blockchain, Microservices, Design Patterns, Event-driven systems

Certifications

AWS Associate Solutions Architect
2025
Professional Scrum Master™ I (PSM I)
2023
SQL Advanced (Hackerrank)
2024

Education

Da Nang University of Technology and Sciences
B.Sc. in IT Engineering
08/2012 - 08/2017