AjarinDong is tutoring application where user can find courses in various IT topics and have certified mentors to guide you from start to finish. I use Spring Boot with Kotlin for this project.

AjarinDong

A Flappy Bird game clone that plays by itself with the power of Artificial Neural Network. Created using vanilla Javascript and p5.js library

Artifically Intelligent Flappy Bird

BINUS MyForum is an android application that gives easy access for Binusian (college students of BINUS University) to unreplied forum discussions. Binusian can reply to the forums directly in this application, and they will also get reminded to reply to their forums everyday.

BINUS MyForum

Eater is a web-based contactless dining application for ordering foods in a dummy restaurant called “Eater”. Built using Next.js for the frontend and Azure Function (.NET Core) for the backend.

Eater

I use Docker to containerize my services. It makes deployment easier.

Docker

For Node.js backend application, I love to use Express.js framework. It is very minimalistic, and expandable with millions of plugins online

Express.js

Firebase is amazing. It is very easy to use, excellent for fast prototyping since I no longer need to create separate backend for my websites. It supports real-time database as well which I want to learn next. This website use Firebase to store my skills and projects list.

Firebase

What I really love about Kotlin is its conciseness. I could write a function using much fewer lines of code in Kotlin that I could in Java. Declaring a class and its fields can be done in one-liner. Also, the best thing, it is completely interoperable with Java, meaning I don't have to migrate my Java codebase to Kotlin all at once. 

Kotlin

My first impression when I get to know Laravel is that everything is ready to use. The CLI is very great to increase productivity, only one command to create controllers, views, and more. I also love the Blade templating engine. It is very simplistic, easy-to-learn, and performant as well.  

Laravel

For storing unstructured data, I have MongoDB in my arsenal. It is popular, fast, and easy to use. MongoDB is the first NoSQL database that I learn when entering backend development

MongoDB

One thing that I struggle with React is its large bundle size. Visitor have to wait until the bundles are downloaded and parsed until they can see any content. If the application is very big, it will hurt the experience. Also, most of the web crawler don't render Javascript very well, hurting SEO performance. Next.js solves this problem by either prerender the pages on build time or render as the request come.

Next.js

For efficient service-to-service communication, we can use message queue. The overhead is lighter than HTTP request, and we have the option to fire and forget the request. I started with RabbitMQ as message broker. I integrate it on Spring Boot backend using Spring Cloud Stream.

RabbitMQ

React is the first library I learnt when I enter web development world. I really love it because it makes building efficient and reusable components much easier. There are a lot of tutorials but the library is very easy-to-learn in general. I already got the basics of it in just two weeks, after which I get straight into building real world applications.

React

I have 1.5 years experience in using SQL databases such as MySQL and PostgreSQL doing database engineering and administration with complex queries.

SQL Databases

I really love Spring framework and its ecosystem. If you are building high-performing backend application with Java, then it is a must. The ecosystem is very mature. Want to build microservice architecture ? we got Spring Cloud. Need database support ? Spring Data JPA got us covered. With Spring, I actually write less code, because it does all the repetitive, basic tasks for me. No need to create boilerplate code for data repository and basic configurations.

Spring Boot

Since I learnt Typescript, I could never go back to ordinary Javascript. With Typescript, my codebase is a lot cleaner, easier to read and mantain, and lesser prone to error because of its strong typing system.

Putu Prema

Skills

Docker

Projects

1

AjarinDong

Backend