I'm Jeff Kolesnikowicz


I’m the lead developer for SimuCase, a virtual case training tool that gives student speech therapists experience with clients — before they encounter their first client. The site is built with HTML5, PHP and a whole lot of javascript.


In my spare time, I build my own websites. I like bacon, durable products, aquarium t-shirts, and switching file formats.


I’m looking to volunteer with an ocean based NGO. Sound like a match? Contact me.


I love building things. I spent hours in the basement on a commodore-64, the only computer I had growing up, coding, learning and hacking. That turned into building websites – PHP, Java, .NET, Ruby, and Perl on the back-end, JQuery and Prototype on the front and Meteor somewhere in the middle. I’ve been building websites for over a decade and a half now. Building things like CMS tools, training tools, consumer websites and enterprise software. When I tell my parents what I do for a living, I say “I make websites work”.

I also get asked what technologies I work with, so here’s a non-exhaustive list of languages and frameworks: PHP (Zend Framework, CakePHP, Laravel, Symphony, CodeIgniter), Javascript (jQuery, Prototype, Meteor), Perl, Java (Hibernate, JSF) and ASP.Net. I also work extensively with databases including mySQL, Microsoft SQL Server, Postgres SQL, Microsoft Access and Oracle.

My resume is available.

I have a passion for the ocean. I’m a diver and have dived coral reefs around the world. I’m interested in the intersection of technology and conservation.


Web developer hard at work

From the Blog

Jeff's Blog

Ten years



The last time I updated this website was about 10 years to the day — and it was built a few years before that. That’s a long time for anything, let alone a website in an industry that moves 10 times faster than most. The site was built in PHP with a bunch of include files that I thought I was being clever about. I got that nostalgic feeling.

Here’s what I’ve done in the last 10 years:

  • Had my two kids, Wesley and Nate and have been watching them grow into boys.
  • Built a lot of websites, business tools and installed wordpress approximately 4482 times.
  • Learned a bunch of new technology, languages and frameworks.
  • Traveled a lot. A whole LOT. Literally around the world.
  • Started new businesses. Watched some fail.
  • Went from a Windows/Linux guy to an OSX/Linux guy.
  • Learned to dive. Explored a whole new world.

But I still have the same car. I guess some things don’t change.

Contact Me

Contact Info