Teng Siong Ong

San Francisco, United States

Member since August 13, 2013

Teng Siong is a freelance developer and entrepreneur who has helped build applications with millions of users. He started a company after his freshman year, which was later acquired. He has extensive experience working with early stage startups and helping them to build quick prototypes for market validation.

Teng is now available for hire

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Portfolio

Apartment 7, Inc.
Ruby on Rails, Objective-C, JavaScript
Serenpidity Machine, Inc.
JavaScript, Ruby on Rails, Objective-C
FLOChip, Inc.
Ruby on Rails, Objective-C, JavaScript

Experience

Ruby, 6 years
Ruby on Rails, 6 years
Backbone.js, 3 years
Objective-C, 5 years
iOS, 5 years

Availability

Part-time

Preferred Environment

Mac OS, Git, MacVim

The most amazing...

...thing I've created was a company my freshman year at college, which I then sold 6 months later.

Employment

Co-founder
Apartment 7, Inc.
2012 - 2013
- Created 4 early prototypes for market validation.
- Created an online video chat feature that supports realtime user tracking.
- Created a web app that scaled up to 80k+ profiles in less than 1 month.
- Built a payment system to start charging users.
- Built a matching algorithm to suggest right matches to users.
Technologies: Ruby on Rails, Objective-C, JavaScript
Co-founder
Serenpidity Machine, Inc.
2011 - 2012
- Created the client-side JavaScript-based web application with Backbone.
- Iterated on the back-end API.
- Iterated on the iPhone client.
- Created the internal metrics dashboard.
- Added metrics tracking for both the iPhone app and the web app.
Technologies: JavaScript, Ruby on Rails, Objective-C
Software Contractor
FLOChip, Inc.
2010 - 2011
- Developed a full-scale eCommerce prototype.
- Developed a custom content management system.
- Developed a music streaming service: Chinese Pandora.
- Managed the launch of a website from a public company.
- Managed the redesign of a client project.
Technologies: Ruby on Rails, Objective-C, JavaScript
Mobile Developer
Loopt, Inc.
2009 - 2010
- Iterated on the iPhone app that had millions of users.
- Built the first paid-only feature into the iPhone app.
- Added metrics tracking for the iPhone application.
- Iterated on the chat features on the iPhone app.
- Worked on the product to get feedback from the users.
Technologies: Objective-C
Co-founder
GraffitiGeo, Inc.
2009 - 2009
- Built the early iPhone prototype that got us into Y Combinator.
- Created a real-time heatmap showing users who checked in places.
- Developed the back-end API for the mobile clients that supported up to 50k users.
- Programmed the internal metrics dashboard.
- Iterated on the design for the website and the iPhone client.
Technologies: Ruby on Rails, JavaScript, Objective-C

Experience

Ruby on Rails (Other amazing things)
http://contributors.rubyonrails.org/
Top 150 contributor to the Ruby on Rails core.
Jquery.feedback (Other amazing things)
https://github.com/siong1987/jquery.feedback
A jQuery feedback widget that has more than 90 watchers on GitHub.
Backbone.Routes (Other amazing things)
https://github.com/siong1987/backbone_routes
A Backbone plugin to help you to create a central place to control all the routing logic.
Flo (Other amazing things)
https://github.com/siong1987/flo
Flo is a Redis powered Node.js autocompleter.
PyCloud (Other amazing things)
Run Python from your browser.

Skills

Languages
Ruby, JavaScript, Objective-C, SQL, Python, Java
Frameworks
Ruby on Rails, Ember.js
Libraries/APIs
Facebook API, Backbone.js, Stripe, jQuery, Node.js
Storage
Redis, PostgreSQL, MongoDB
Tools
MacVim
Paradigms
Agile Software Development
Platforms
iOS

Education

Bachelor degree in Computer Science
University of Illinois at Urbana-Champaign - Urbana-Champaign, Illinois
2008 - 2012

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