Blog Books CODE Wordle TIL About
Open to Work • Start from June

Friendly, Product-Minded Fullstack Ruby on Rails Developer with 8 years of experience

I build meaningful systems that make users happy. I can own architecture, structure, deployment, basic DevOps, and deliver clean code that teams can read, trust, and maintain.

Download CV (PDF) Email Me
$ work_experience

Symphony Creative Solutions

May 2020 – Present

Singaporean multi-tech · Shipping & Logistics

  • –Vessel tracking, time prediction, container handling logs and inspections for ONE (world's top shipping line).
  • –Built Vessel Quality Standard — inspection planning, scoring, and evaluation.
  • –BACS: commodity validation for shipping acceptance, CSV/Excel import, Elasticsearch search.
  • –Guardian: vessel tracking on map with historical routes, weather forecasts & alerts.

Jointhire Vietnam

June 2019 – Apr 2020

Singaporean recruitment agency · Job seekers & employers

  • –Internal case management system for staff to process recruitment cases.
  • –Maintained 4 live product domains; used Solr for large-dataset custom search.
  • –Built GraphQL backend API for mobile app.

Atmarkcafe Vietnam

Oct 2017 – May 2019

Japanese outsourcing · Ruby on Rails projects

  • –Fourtrive: marketplace for photographers — iOS/Android for users, web for photographers + admins.
  • –Data visualization dashboard crawling Google, Yahoo, and Facebook.
  • –Tanzak: story-reading iOS/Android app with web admin. Sub-lead on BBGun game system.
$ tech_stack
skills.rb
#
core = Ruby, Ruby on Rails, PostgreSQL, JavaScript, SQL
#
search = Elasticsearch, Solr, GraphQL, Redis
#
frontend = Hotwire / Turbo, Stimulus, Vue.js, CoffeeScript
#
infra = Docker, Kamal, AWS/S3, Sidekiq, Jenkins, GitHub Actions
#
testing = RSpec, Git, SCRUM / Agile

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$ selected_work
Post ↗

Race condition when exporting file

ActionCable to stream exporting file but sometimes users wait too long and don't see files.
Post ↗

Trix inline code

Customizing the Trix editor for developer-focused content
Project ↗

Multiplayer Wordle

Real-time game built with Action Cable + Turbo
Project ↗

Code Book (translation)

Vietnamese translation of Charles Petzold's CODE

Let's build something together

If you're hiring for a Ruby on Rails role — remote or hybrid — I'd love to talk.

cuong.nguyen0527@gmail.com Download CV