Danu Widatama—Résumé

Contact

Summary

I am a Software Engineer focusing on solving complex problems with technology. I am experienced in building large and complex web applications that are performant, well-tested, and well-organized.

Work Experiences

Countly

2022–current

Full Stack Engineer

Countly is an analytics platform that helps with understanding and enhancing customer journeys in web, desktop, and mobile applications. I am responsible for developing and maintaining some of the features such as user management, user group management, and crash analytics.

Bukalapak

2012–2022

Front-end Engineer → Front-end Architect

Bukalapak is one of the biggest online marketplaces in Indonesia. I was involved in many projects related to the main website that brought me to the position of Front-end Architect. Some of the notable projects are

Developed many of the early features of the main website, such as product search, shopping cart, transaction, and user dashboards.
Developed front-end component libraries for the website, first with only HTML and CSS and then later with Vue. This aided in the standardization of the website’s design and improved front-end development speed.
Migrated front-end asset processing from Rails pipeline to Webpack. This helped modernize the front-end stack and improve development productivity.
Migrated many website pages from server rendered into web application with REST API. This contributed to the back-end’s adoption of API architecture and, later, microservices.
Developed many internal tools that are used company-wide, such as a REST API client, component libraries, and middlewares for front-end servers. This improved other front-end engineers’ work speed since they could focus more on building product features.
Developed the infrastructure for distributed front-ends (microfrontends). This includes defining the protocol, developing the back-end layer, page compositor, page renderer, and the core services that coordinate other front-end services to work together. Distributed front-ends improved team productivity because it enabled different teams to work more independently without affecting each other too much. It also improved service operations by making the deployment scope smaller. Smaller deployment scope means deployments are faster and less risky.

HijUp

2012–2015

Front-end Engineer

HijUp is a Muslim fashion e-commerce website. I was their first front-end engineer and the only one for the first couple of years. I developed almost all of the early website features for external and internal users.

Developed main website features such as product search, transactions, user dashboards, and admin dashboards.
Rewrote the website’s front-end code from scratch. The code was updated and reorganized to make the website more reliable and maintainable.
Developed an internal admin dashboard. This helped the admin team deal with orders and logistics more efficiently.

pwc Indonesia

2009–2012

System and Applications programmer

As a programmer, I developed many applications for internal operations at pwc. The applications vary from meeting room reservation management to reimbursement requests and tracking. My work helped improve the efficiency of the internal operations.

Latest Works

http://widatama.github.io/works

Technical Skills

Front-end

JavaScript

I am experienced in designing and developing large, complex web applications with JavaScript. I am also experienced with many developer tools, frameworks, and libraries available in the JavaScript ecosystem.

Modern JavaScript (ES6 and up) and TypeScript
Front-end libraries such as Vue and React and their related tools and frameworks such as Nuxt, Next.js, Vue CLI, and Vite
JavaScript code bundlers such as Webpack, Rollup, and esbuild
Test runners and test libraries such as Jest, Vite, Mocha, Tape, Cypress, and Karma
Visualization libraries such as ECharts
Linter tools such as ESLint and Stylelint
Browser and Node.js API

HTML and CSS

Templating engines such as Pug, EJS, Haml, and Slim
Processors such as Sass, PostCSS, and Stylus
Frameworks such as TailwindCSS and Bootstrap
Methodologies such as BEM, ITCSS, and OOCSS

Back-end

I am most experienced with Node.js and Ruby on Rails. But other than that, I am able to learn any other back-end stack fairly quickly.

Node.js (mostly with Express)
Ruby (mostly with Rails)
SQL based databases (mostly MySQL and SQLite)
noSQL databases (mostly MongoDB)

Others

Source code management with Git
Linux server operation and shell scripting
Service operation with Docker and Kubernetes
Service monitoring and logging with Datadog and Kibana
Running and maintaining Continuous Integration (mostly with Gitlab CI and Github Action)
Internal package maintenance and release automation

Education

University of Indonesia

2005–2009

Bachelor of Computer Science

Other Interests

Github: http://www.github.com/widatama
Goodreads: http://www.goodreads.com/widatama
500px: http://www.500px.com/widatama