Understanding Rails Active Record Encryption
Learn how to secure sensitive data in your Rails applications with Active Record Encryption, a powerful feature introduced in Rails 7. Explore implementation strategies and best practices.
Backend Developer & AI Integrator
Nearly 3 years building scalable, data-intensive systems and AI-assisted backend services.
Strong expertise in Ruby on Rails, RESTful APIs, and LLM/RAG integration.
Skilled in cross-functional collaboration with AI engineers, data teams, and product stakeholders to deliver reliable, high-quality backend solutions.
Based in Hanoi, Vietnam. IELTS: 6.5 | +84 981-604-006
Projects
Secure password manager using Ruby on Rails 8 and Hotwire. Chrome Extension for autofill workflows, encrypted storage with Active Record Encryption.
View Repo
Real-time social platform using Action Cable, authentication via Devise, RESTful APIs, and full RSpec test coverage.
Ticket booking system with asynchronous background processing using Sidekiq, and Docker-based deployment.
Articles
Using Microsoft Graph API to Automate 2FA Retrieval
Explore how to programmatically access 2FA codes from Microsoft Authenticator for development workflows while maintaining security best practices.
Building a RAG Chatbot: Smarter AI Conversations
Discover how Retrieval-Augmented Generation (RAG) chatbots combine LLMs with real-time data retrieval to deliver smarter, more reliable answers for support, knowledge bases, and technical assistants.
About Me
Backend Developer with nearly 3 years of experience building scalable, data-intensive systems and AI-assisted backend services.
Strong expertise in Ruby on Rails and RESTful architectures, with hands-on experience integrating LLM pipelines, designing Retrieval-Augmented Generation (RAG) workflows, and optimizing system performance for production environments.
Skills & Technologies
Languages
Ruby, Python, NodeJS, JavaScript, SQL
Frameworks
Ruby on Rails, FastAPI, ReactJS, Hotwire, Stimulus
AI / RAG
LLM integration (OpenAI), prompt engineering, vector embeddings, retrieval pipelines
Tools / Other
PostgreSQL, Redis, Docker, Sidekiq, RSpec, AWS, Google Cloud, Git
Experience
Adamo Software (Mar 2023 -- Present)
- Designed and developed scalable backend components for a high-volume PIM platform in the tours & activities industry.
- Implemented a production-level conversational assistant using Retrieval-Augmented Generation (RAG) and LLMs.
- Architected multi-source bulk product creation, automated TTD status management, improved dashboard analytics, and resolved critical production bugs.
Samsung R&D Center Vietnam (Jun 2022 -- Aug 2022)
- Intern Software Engineer
Education
Hanoi University of Science and Technology
Bachelor of Engineering in Computer Science; GPA: 3.01 (Oct 2020 -- Present)
Let's Connect
Feel free to reach out for collaboration or just to chat about backend, Rails, or AI development!