Bio

Hey there! I’m Hieu, an enthusiastic programmer who focuses on backend development. Writing about coding is my usual blogging gig, but I also like to talk about books, manga, and other random things.

I’m currently Senior Staff Software Engineer at Ascenda. My work involves building world-class authentication system tailored for rewards program in financial industry. In my free time, I also contribute to open-source projects and organize tech events at Ruby Vietnam.

Conference

RubyConf Taiwan 2023

Talk: Real world application of Ractor

ruby_conf_india_1 ruby_conf_india_2

RubyConf India 2023

Talk: Building a Resilient MFA Framework: Strategies and Best Practices

Slides

ruby_conf_india_1 ruby_conf_india_2

Community contribution

vietnamrb

I am admin of Ruby-Vietnam, a community of ~2000 developers in Vietnam. From 2015 to 2019, I help Trung Le, founder of the community, organize events in Ho Chi Minh City and Ha Noi. There has been more than 20 meetups and hacknite since then.

Below are a few talks I present at the meetups:

hanoi.rb 2014 - Using Arel to refactor big queries
hcmc.rb 2015 - Introduce to Warden
hcmc.rb 2016 - Behind Rails magic
TINYpulse 2018 - Better reviewer
TINYpulse 2018 - Isolation Levels
Ascenda 2019 - Isolation Levels
Ascenda 2019 - Introduction to Fuzzing

GIVEasia

In 2015-2016, I helped GIVEasia, a crowd-funding platform for charity events, as volunteer developer. The most notable feature that I developed there is the recurring payment module.

Kipalog

From 2018-2019, I work on Kipalog, a knowledge sharing platform for Vietnamese developers, to improve performance and test coverage. Occasionally, I also develop new features to improve the user experience.