Peter Vojtek

Helped develop a mobile and web app which empowers Go Ground, an official ground transportation provider for the NCAA and other high-profile events such as Pope Francis’s visit to Philadelphia in 2015, major music festivals, air shows, and sporting events.

Powerline is a mobile app which allows leaders and communities to interact in a Facebook-like way. I developed the mobile app in Ionic framework.

Joomie is a mobile app that helps Jewish high school seniors and current college students connect with potential roommates who share similar interests, hobbies, and/or values.

I developed the mobile app in Ionic framework.

Freemap is a web portal, an online application that was custom developed for the Slovak openstreetmap.org user community. I co-developed the application primarily using React along with Redux and Leaflet.

I was head developer of the solution for five years. I led a team of four developers and two testers. Our development process was based on Kanban and we used Atlassian Jira for project management. I did a lot of code reviews—we developed the solution via pull request workflow in Git.

The solution was built in Ruby on Rails, Java, and Oracle. We integrated with AFIS and I was responsible for leading the integration in such a manner that our worker processes in Ruby running in clusters would scale properly to allow real-time biometric identification of country-level projects (millions of people).

I did a lot of B2B integration of our solution with other systems to deliver the final product (e.g., with Gemalto and Smartmatic).

I was also responsible for delivery. I co-managed and delivered the following government projects on-site: Burkina Faso Voters Lists, Haiti National ID, Ghana Social Security, Ghana Border Control, Nigeria Voters Lists, and Benin Visa Issuance.

Web app which facilitates connections between companies and people attached to the companies in a friend-of-a-friend manner. I was the co-founder of the startup, co-developed the solution in Ruby on Rails, and negotiated the sale of the web portal.

Pro-bono design and coding of a web app which provides a map of libraries in Slovakia.

Technical stack: Ionic, AngularJS, OpenStreetMap, Overpass API, Leaflet JS

I developed an experimental smartphone app for a touchless map control (zoom and move via accelerometer) to exploit the use case of using a map on a smartphone when wearing gloves. The app source code is freely available and the app was featured in the OpenStreetMap community.

Route planner for Nordic skiing trips in Slovakia. I created the whole app in JavaScript and LeafletJS. I am the author of the map design which I created in Mapbox Studio.

Radar-based precipitation data displayed over a map with timeline. I am the sole author of the app. I created the back end in Ruby (Sinatra) and image processing script which regularly parses the radar image data from Slovak Hydrometeorological Institute. I wrote the front end in JavaScript and LeafletJS.

I developed this mobile app in Ionic framework which allows Nordic skiers to submit information on cross-country skiing conditions in Slovakia into the nabezky.sk web portal. The app includes a touristic map with cross-country skiing trails, GPS tracking, and weather forecast. I also developed the back-end integration with Drupal web server and integrated with openweathermap.org API to obtain the weather forecast.

I was head developer of the solution for five years. I led a team of four developers and two testers. Our development process was based on Kanban and we used Atlassian Jira for project management. I did a lot of code reviews: We developed the solution via pull request workflow in Git.

The solution was built in Ruby on Rails, Java, Postgres, and SQLite. We integrated a lot of exotic biometric hardware to cooperate with our app; e.g., iris scanner, fingerprint scanners, and signature pads. I wrote several FFI middlewares to create a layer between the hardware SDK written in C so that we could integrate it with Ruby.

While working on a solution in Ionic to upcycle old Android smartphones to be used as outdoor webcams, I needed to detect GSM signal strength. At the time there was no such plugin for Apache Cordova, so I wrote one: https://www.npmjs.com/package/cordova-plugin-signal-strength

For the same project (outdoor webcam from old Android phones) I also needed to execute shell commands on rooted Android phones. Again, at the time, there was no Apache Cordova plugin to execute commands in Shell, so I wrote one: https://www.npmjs.com/package/cordova-plugin-shell-exec