Professional Summary

  • Senior Fullstack Software Engineer & Tech Lead with 8+ years building scalable e-commerce, fintech, and IoT platforms.
  • Expert in Ruby on Rails, Vue/Nuxt, and cloud-native architectures.
  • Certified Scrum Master and AWS Solutions Architect Associate.
  • Experienced tech lead, driving technical design and architecture decisions.

Professional Experience

SEPHORA
Senior Fullstack Developer
Singapore 04/2021 - Present
  • Served as tech lead for multiple projects: designed technical architecture, split epics into stories, groomed tickets, and collaborated with cross-functional teams to deliver scalable solutions.
  • Built agile delivery pipelines: led Scrum, managed backlogs, prioritized releases, and used analytics to optimize system reliability and throughput.
  • Engineered platform features:
    • Implemented authentication: JWT, OAuth, social login, identity management, Forter fraud detection, MFA, and secure access control
    • Integrated CRM, loyalty, and rewards modules; built admin interfaces
    • Built resilient, event-driven data synchronization and migrations
    • Refactored backend: monolith → microservices (BFF, event-driven)
    • Deployed AI/ML models and real-time data pipelines for personalization
Tech stack: Ruby on Rails, Vue, Nuxt, AWS, RabbitMQ, Java Spring, NewRelic
AIRHOST
Fullstack Developer
Singapore 12/2019 - 04/2021
  • Built and managed a smart-lock system for seamless, secure property bookings.
  • Integrated top smart lock providers (RemoteLock, KeyWe, Blockchain, keycafe, ...) for unified access control and automation.
  • Integrated top OTAs (Ctrip, Booking.com, Expedia, Airbnb, Rakuten, ...) for seamless listing publication and real-time reservation sync—streamlining property management.
  • Streamlined booking flows with flexible coupon strategies and automated tax handling.
  • Created clean, well-documented APIs (with Swagger) to make third-party integrations fast and painless.
Tech stack: Ruby on Rails, jQuery, PostgreSQL, AWS
IPCOIN EXCHANGE
Backend Developer
Vietnam 08/2018 - 12/2019
  • Implemented a high-performance, fault-tolerant trading platform for a cryptocurrency exchange (Binance-like), including:
    • Trading engine: real-time order matching, trade execution, price ladders, trading fee calculation, ...
    • Candlestick chart data generation for market visualization
    • Event sourcing for auditability, replayability, and robust recovery
    • Comprehensive admin dashboard for monitoring, user management, and operational controls
    • Robust user security: OTP, JWT, device session tracking, sign-in alerts, security notifications
    • Real-time trade notifications for users and admins
  • Integrated blockchain wallets (BTC, NEO, CoolWallet) and implemented secure crypto key management for user asset protection.
  • Implemented KYC (Know Your Customer) processes for regulatory compliance and user onboarding.
  • Built distributed, scalable microservices using Docker, Kubernetes, Kafka, and RabbitMQ, with zero-downtime deployment strategies for high availability and maintainability.
Tech stack: Ruby on Rails, PostgreSQL, Blockchain, Docker, Kubernetes, Kafka, RabbitMQ, Nodejs
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