Introducing, the one and the only..


My name is Jason Kulatunga and I'm a web application developer living in San Francisco, CA. This site is a mostly a showcase of my current and past projects.

A bored developer is a developer in need of a new framework

I'm a C# developer by trade, with a long history using MVC, MS-SQL, and the rest of the MS dev stack. However I learned pretty quickly that the phrase innovate or perish applies just as much to developers. I've picked up and worked with many different languages, from iOS to NodeJS to Lisp.

I began SparkTree as a consulting company to work on projects when I had free time. It's allowed me to pick and choose projects that specifically interest me and provide me with the opportunity to familiarize myself with a new language or framework.

Client-side is the future

There is something satisfying about being a full stack developer. Being able to jump into any part of an application and feel completely comfortable is incredible. However I've found myself drawn towards the power and responsiveness of client side MVC frameworks, as you'll see in my blog and github.

SHOWCASE, Look but don't touch

My Portfolio

Welcome to my echo chamber

What I Can Do

Design Integration

Comfortable implementing custom designs into a finished web application using modern frameworks such as LESS & SASS.

Mobile Development

I've extended the desktop experience to mobile devices using responsive design and custom native applications.


I'm a flexible thinker and a quick learner. Custom web applications are my bread and butter. I know I can deliver.


All work and no play makes Jason a dull boy. Rock climbing helps me disconnect and give my brain a well deserved rest.

Skim my thoughts

Blog Posts

Why I love blogging


I love working on interesting projects, but I'm not the greatest at sharing that interest with others. Blogging is my way of talking about the interesting and unique aspects of my work, while also helping me organize my thoughts. You can expect to see posts in wide range of topics and programming languages. Read More

I'm even more interesting in person

Get in Touch

Send me a Message

San Francisco, CA

SparkTree is based out of San Francisco, CA. If you would like to get in touch with me you can fill out the nearby contact form, or send me an email directly. I'm always looking to meet new people and network. If you're in San Francisco and would like to meet in person, please get in touch.