My name is Đại. I'm a web developer and blogger.
I have been working as a Ruby on Rails developer for 5 years.
With strong Ruby on Rails and database skills, I helped customers to build reliable and scalable web applications.
I can also code ReactJS and perform pretty well with HTML, CSS, and JavaScript.
Here are some of my achievements:
- Implemented a complex algorithm to help customers automate their work reduce the time it took to complete their task from 20 - 30 minutes to just 2 - 5 minutes. Enhance the algorithm and fine-tune the code so that the time it takes for an api call meets the requirement of 30 seconds to 1 minute.
- Integrated in-app purchase (Apple and Android) to help customers with their payment function in their mobile app. Gained trust and positive feedback from customers; they introduced me to another 3 projects to implement the same function.
In-app purchase (Apple)
- Speed up multiple APIs by fixing slow queries. Checking and indexing the SQL based on the SQL execution plan, adding code to detect the N+1 problem while running unit tests (so it can be checked in CI).
Detect N+1
- Using many modern features of SQL to solve business problems.
Recursion in SQL
Order by field
Handle duplicate check in more than 50 columns
Or check out my featured works
Contact me if you have any work:
Github porfolio
Happy reading,
Đại
I have been working as a Ruby on Rails developer for 5 years.
With strong Ruby on Rails and database skills, I helped customers to build reliable and scalable web applications.
I can also code ReactJS and perform pretty well with HTML, CSS, and JavaScript.
Here are some of my achievements:
- Implemented a complex algorithm to help customers automate their work reduce the time it took to complete their task from 20 - 30 minutes to just 2 - 5 minutes. Enhance the algorithm and fine-tune the code so that the time it takes for an api call meets the requirement of 30 seconds to 1 minute.
- Integrated in-app purchase (Apple and Android) to help customers with their payment function in their mobile app. Gained trust and positive feedback from customers; they introduced me to another 3 projects to implement the same function.
In-app purchase (Apple)
- Speed up multiple APIs by fixing slow queries. Checking and indexing the SQL based on the SQL execution plan, adding code to detect the N+1 problem while running unit tests (so it can be checked in CI).
Detect N+1
- Using many modern features of SQL to solve business problems.
Recursion in SQL
Order by field
Handle duplicate check in more than 50 columns
Or check out my featured works
Contact me if you have any work:
Github porfolio
Happy reading,
Đại