Curriculum Vitae

Backend Developer

Summary

• Experienced Backend Developer with a focus on Magento since 2016, complemented by Symfony expertise.
• Used to work with ecommerce platform with millions of customers.
• Enthusiastic about self-hosting and open-source software.

Skills

• Programming Languages: PHP, JavaScript, Shell Script, Python
• Tools: Git, Linux, Docker, SQL (MySQL, PostgreSQL)
• Last but not least: Google, chatGPT

Work Experience

• Work as a freelancer for a U.S. company with international teammates.
• Build and maintain the Magento/Laravel/Shopify systems for clients.
• Recently started working with WordPress Divi theme.

• Engaged in the Central Online project, a major e-commerce platform with millions of customers, built around Magento EE as the central service.
• Responsible for optimizing, maintaining, and developing new features for Magento and related services.
• Extended expertise to the development of internal projects using NodeJS.

Projects

• The Mall Group - Supplier Information System | Python - ReactJS

  • Role: Fullstack developer.
  • Learnt to develop and implement microservices-based systems on AWS
  • Overcame challenges in fast filtering and updating operations on large table, optimizing system efficiency.

• Central Online | Magento 2 EE

  • Role: Backend Developer and Support Engineer.
  • A large ecommerce website with around 4 millions customers, 1.3 millions products and up to 3 thousands orders perday.
  • Continuously improved and optimized the functionality of the Magento 2 service.
  • Fixed security issue and migrate database version for old warehouse system.
  • Synchronized product images from S3 bucket and assign to products efficiently.
  • Mitigated urgent production issues within an hour, preventing bad experiences for customers.

• TOPS Online and SuperSports | Magento 2 EE

  • Role: Backend Developer and Support Engineer.
  • Maintained and fixing bugs for current Magento 2 system.
  • Troubleshooted and optimized SQS consumer service written in Python.
  • Provided support on urgent issues on production.

• Lotus’s | Airflow

  • Role: Junior Data Engineer
  • Using PostgreSQL to identify discrepancies across multiple systems, including retail, warehouse, and transfer systems.

• Awarded the most motivated self-starter of Sutunam in 2019.
• Specialized in Symfony applications for e-commerce websites and CRUD applications.
• Worked on the development of e-commerce websites, incorporating Magento 1.9 and Progressive Web Apps (PWA).

Projects

• Le Petit Olivier | Magento 2 + VueJS

  • Role: Backend developer.
  • Enhanced and troubleshooted the existing system.

• Cresus | Magento 1 + VueStorefront

  • Role: Backend developer.
  • Enhanced and troubleshooted the existing system.
  • Brought a modern design to Magento 1.

• Internal HR Management System | Symfony

  • Role: Backend developer
  • Designed and implemented EAV database for Symfony.
  • Efficiently stores candidate profiles with detailed skill sets and automates HR tasks, including follow-ups and interview preparations.
  • Automated sending update email through pre-defined email templates.

• Started working with Magento 2.
• Gained proficiency in Design Patterns.
• Utilized Docker to create efficient development environments.
• Contributed to significant e-commerce projects.

Projects

• Develop Magento 2 modules

  • Role: Backend developer
  • Implemented payment modules: Authorize.net, Subscriptions & Recurring Payments,…
  • Developed Other modules for custom projects: FlashSales, Gift Wrapper,…

• Bibomart | Magento 2

  • Role: Backend developer
  • Built ecommerce website based on customer requirements.

• Gosawa | Magento 2

  • Role: Backend developer
  • Built ecommerce website based on customer requirements.
  • Responsible for the homestay/hotel booking system.

Other Projects

• LAMP Stack on Docker: The name says it all, this is my setup for my daily work.
• Sani.chat: A chat bot for recommending good coffee shops around Hanoi. Born in 2021, it can understand Vietnamese only.
• Some firefox extensions: I write/maintain some firefox extensions for my personal use.
• database-less Markdown wiki: After trying dokuwiki and find its support for Markdown is quite limited, I decided to write one for my own use. You can see the demo here.
• muterr: opensource MacOS app for input audio mute.

Education