Zoran Plesko

I worked on developing a platform for delivering curated news, sourcing users' opinions and visualizing them on a highly interactive map.

The back end was developed in RoR and Grape on Rails, deployed to AWS, dockerized and set up on ECS Fargate, ready to scale.

The client got an offer to sell the app to another enterprise and is currently working out a deal. We pulled the app from the App Store because we developed a pivoted version where we dropped the news delivery part and emphasized the crowdsourcing of opinions, which is about to be released on the App Store as soon as the client is ready.

A Netflix-like website with iOS, Android, and Roku apps.

I was in charge of making the transition from Wowza server to being able to serve HLS transcoded adaptive bitrate videos through AWS Cloudfront for a much cheaper price and for implementation of JW Player on the website.

I also worked on various other parts of the Rails app (PayPal integration, payment gateway integration) and saved a badly-made outsourced iOS app from being thrown away by rewriting 80% of it to comply with best practices in app making, ultimately speeding it up by more than 10 times. I wrote the video player portion to mimic Netflix by functionality.

A system for video streaming and chatting with celebrities through mobile apps and web. I was part of the iOS team, in charge of keeping the UI in place, rewriting it from a previous version that did not satisfy Apple's human interface guidelines.

Whatt is a fresh and simple way to share status updates among friends. It's an iOS-only social network and messaging app.

An app that accompanies the Create To Heal™ program for stress relief and self healing. The app is private, meaning that the user has to request a PIN number (served through the Ruby on Rails back-end) to be able to use the app. Once in, the user has access to guided meditations, music, and an art slide show through a custom-made multimedia player.

The Android version of the Create To Heal™ program app.

An independent guide to good food, wine, local produce, eateries, and foodie events in Croatia. My first iOS project. It got me interested in iOS and mobile development.

Croatian Museum info all in one place. This was my first project using Ruby on Rails. After that, I fell deeply in love with Ruby on Rails, making it my number one choice for back-end solutions.

A catalog and schedule planner for a world-famous festival of animated films. Beside the program part, the client wanted something fun, so I made two "games." Festival mascot Mandlek joins you when taking pictures from the app, and users can make their own stop motion films and share them to Facebook.

Series of very simple applications for iOS and Android used for the client's promotional purposes.

Vrtii is an innovative way of advertising - users play a game via a mobile application and win prizes that they can redeem at the advertiser's store or trade with other users via a mobile application exchange market.

My team and I developed the whole system from scratch, using Ruby on Rails for back-end for both web and iOS applications. I developed the game within the mobile application using SpriteKit.

The web application is aimed at advertisers and allows them to register and create campaigns and the mobile application is aimed at users who can play a game and win prizes set by advertisers. I created an algorithm for distribution of the games that are available to be won. Displaying/winning a prize depends on targeting set by advertiser, and we also made it location sensitive.

At the moment, the client is waiting for the Android application to be finished and is preparing to launch the project.