ArcGIS Hub is an Ember web application for connecting government and citizens through open data. Communities can use tens of thousands of open datasets to build interactive web mapping applications and craft initiatives for solving problems facing the community.

I primarily work on the front end of ArcGIS Hub and have focused on updating and building new features for Hub's Open Data site builder and editor. I also worked on the ArcGIS Hub development team during my summer internship with Esri, during which I helped automate an application that generalizes ArcGIS Online web mapping applications to be compatible with any dataset, greatly expanding the usability and openness of the platform.

Check out ArcGis Hub here.

mVax is an Android mobile application for managing a medical records database that stores immunization records for Clínica Esperanza in Roatán, Honduras.

mVax is configured with Firebase for storing and retrieving data. The application supports concurrent creation and editing of record data, macro visualization of immunization progress and goals, alerts for overdue immunizations, compilation of vaccination data into comprehensive reports, and internationalization.

The project was funded through the Duke Global Health Institute on behalf of Duke University. I was a member of the development team and additionally served in a product manager role for my team. I lived in Roatán, Honduras during the summer of 2018, performing final development, testing, and deployment of the application.

Learn more about mVax here.

VOOGA, which stands for Video Object-Oriented Gaming Architecture, is a game authoring engine with a focus on 2D role-playing games such as Pokemon, Zelda, and Evoland.

JavaFX is used to handle the front end of the application along with XStream for XML serialization. My roles included game editor design, menu bar functionality, file I/O, side control panels, the main menu, engine design, transitioning between different application states, a JavaFX builder utility, and back end integration.

The games that can be constructed are all similar in that there are set number of moveable locations defined in a grid, with only one possible element (i.e. a character or landscape object) occupying that space. Certain objects have configurable attributes, such as gates, teleporters, or enemies. The user can then export their overworld to a file which can later be loaded into VOOGA's engine and played like any regular game.

If you'd like to try out VOOGA for yourself, clone the repo down onto your machine and import it into an IDE such as IntelliJ or Eclipse. Ensure that you've added the xstream-1.4.9.jar file to your buildpath before compiling the application. Example editor and engine files are located in the example-gamefiles directory.

You can learn more about the project and see the source code for yourself here.

FirePage is an iOS application for managing the RA-on-call system at Duke University. The application can track emergency requests from residents, manage the RA-on-call calendar, and help users get in touch with first responders.

My primary contribution to FirePage is the RA-on-call calendar, which uses the JTAppleCalendar library to display a dynamic calendar that visualizes the RA-on-call schedule. Updates in the database are automatically pushed to the user interface.

Check out the repo here.

SpeedSpy is aimed at correcting (or monitoring) one of the most common driver habits: excessive speeding. The project consists of a Particle Photon configured with an Adafruit Ultimate GPS Breakout and external antenna, a 4-ohm speaker, an external LED, and an Adafruit Mono 2.5W Class D Audio Amplifier. Together, along with a Blynk app integration, SpeedSpy monitors your vehicle's location and speed, pushes that information to the Blynk app, and emits a shrill alert via the speaker when the speed limit for the current road is exceeded.

Check out the repo here. A demo of SpeedSpy can be viewed here.

inspectX is a Duke University startup that connects prospective car owners with local mechanics to provide economical, onsite pre-purchase inspections.

I served as a full-stack web developer for the inspectX platform, powered by Ruby on Rails. I resolved existing back-end issues with authentication, form submission, payment, and database management. I also updated the front-end layout of the inspectX platform with HTML, CSS, and JavaScript.

Check out the repo here. See what inspectX is all about here.

ciequinoterapia.com is a static website that I built during my time volunteering with the Centro Integral de Equinoterapia in Guayquil, Ecuador. My goal for this website was to replace the center's existing, outdated website and increase their outreach and public relations exposure both within the Guayas province and throughout South America.

I built the website on Drupal due to time and bandwith constraints. However, I used HTML to heavily modify and customize the layout of the webpage, along with CSS to optimize the site for mobile devices. Visual effects, such as the homepage slide show, are implemented with JavaScript and jQuery.

The website's repo is available here.

Pokémon Duke Blue is a role-playing videogame built with JavaFX that is based off of the popular Pokémon videogame series. I built the game because I wanted to learn how to develop graphical user interfaces with JavaFX.

The game features a navigable world that the player explores by controlling a sprite. The player can interact with several non-player-characters with the sprite and can also challenge the game boss to a turn-style Pokémon battle. Sound effects and cheat codes are also included.

You can download and play the game yourself here. Export the ZIP archive into your file system and double-click the JAR file to start the game. The program's repo along with complete gameplay instructions are available here.

MoistureMachine is a critical response to the concept of open-data, data ownership, and corporate cloud surveillance and privacy. At its core, MoistureMachine is a comprehensive system for monitoring the environment around a plant, but importantly, all data collected by the microcontroller is always available and proactively delivered to the user.

MoistureMachine conforms to the principles of open-data and user ownership through the following functionalities:

1. Every four hours, the user is sent an email that contains all data points recorded by MoistureMachine during the previous four hourly runs (the time between each run can be customized, such as once every two hours with a report every eight hours)
2. Data can be visualized in real-time through an applet on the Blynk platform
3. The user can see the current soil saturation reading via the onboard OLED screen

Check out the repo and documentation here.

CellSociety is a cellular automata simulation engine coded in Java using the JavaFX framework. I developed this application with two other team members. I primarily served as the project's front-end developer, overseeing GUI development, CSS styling, and simulation control. I was additionally in charge of interfacing the front-end GUI with the program's back-end logic that powers each simulation.

The application simulates several different cellular automata simulations along with GUI controls that allow the user to customize how each simulation is executed. The software stack also includes a DOM parser for XML; this allowed for further modifications of simulation parameters through XML files tailored to each type of simulation.

You can download and run the simulations yourself here. Export the ZIP archive into your file system and double-click the JAR file to start the application. The program's repo along with complete instructions are available here.

SLogo, or Simple Logo, is a simplified version of the Logo programming language. Logo is a computer language designed to teach programming to children. It is a user-friendly, interpreted language, designed with a "low floor, high ceiling"; in other words, the designers of Logo intended for the language to allow novice programmers to get started with quickly writing programs but also wanted the language to be powerful and extensive for more advanced users.

I built an IDE for SLogo with Java in a team of four. I worked on the back end team and focused specifically on building the parse tree that represented each SLogo command issued from the UI. Through the parse tree, SLogo commands are decomposed into irreducible components and then executed to produce a cumulative result that is reflected in the UI. My other roles included robust error-checking and integration with the front end UI. The back end also supports complex SLogo functionalities such as user-defined methods, recursive calls, and variable scoping.

Check out the repo here.

Rails Blogger is a simple blogging application that I built with Ruby on Rails. This was my first Rails project and served primarily as my initial test-drive of the Ruby programming language along with the Rails framework.

This blogging application features creating, commenting, editing, and deleting articles, along with user authentication and permissions management.

Check out the repo here.