Experience

• 

  Jaman, inc.

  Jan 2008 - Jan 2008

  Server-side software engineer intern
• 

  University of california, berkeley

  Jan 2009 - Jan 2009

  Web application developer
• 

  Seatech mobile

  Jan 2010 - Jan 2011

  Mobile programmer

  Mainly responsible for BlackBerry application development, while also contributing in iphone application development, linux system administration, web application development, and backend development.

• 

  Ansvia

  Jan 2011 - Jan 2012

  Senior programmer

  Mainly responsible for data mining tasks using Hadoop and MongoDB. Work on back-end to front-end as well on occasion. I also built the follower recommendation system using collaborative filtering.

• 

  Dexcode

  Apr 2011 - now

  Director / founder

  A web and mobile application development company focusing on business-to-consumer solution.

• 

  Savsale

  Jun 2012 - Jan 2012

  Ruby / rails engineer

  Responsible from back-end to front-end, including:- Implement full AJAX functionality using jQuery, Backbone.js, eco template- Write sale crawlers with Ruby, Nokogiri, Delayed Job- Write crawlers monitoring system

• 

  Lensculture

  Jan 2013 - Jan 2014

  Lead rails developer

  I'm the lead developer who helped launch the site and made major decision to the overall architecture of the site.- Full stack developer responsible for developing application front-to-back as well as managing junior developer.- Implement and scale site infrastructure using multiple EC2 instances, ELB, CloudFront, Nginx, and Memcached.- Implement checkout system using Stripe.- Implement highly interactive user interface using JavaScript, CoffeeScript, LESS, and Bootstrap.- Reduce image upload times from a couple minutes to a couple seconds using a combination of client side processing and delayed processing.- Design and implement JSON API. Lihat lebih sedikit

• 

  Hilario

  Jan 2013 - Jan 2013

  Lead rails developer
• 

  Facilgo

  Feb 2015 - Feb 2020

  Lead developer

  - Recruit, grow, lead, and manage the Indonesian team consisting of 5 developers.- Build the working version of the integration engine from scratch using Sidekiq. It integrates with many suppliers and software systems using various integration protocols (SOAP, XML, JSON, FTP, SFTP).- Implement customizable dashboard and build the big data pipeline using Apache Spark to serve data to the dashboard in an efficient manner.- Implement server monitoring and alerting system using Datadog whenever there is a problem with various parts of the large system.- Improve the performance of the system using various techniques such as database indexing, caching, as well as storing frequently accessed data like access control to Redis.- Start a mobile application initiative: wrote the initial version of the code and launch MVP in about a month to App Store. The mobile app works offline and syncs the data when the internet connection is back online. The app was built with React Native.- Evangelize writing unit test to the development team. Lihat lebih sedikit