Dimitrios Loukadakis

I built a WebGIS for weather monitoring via satellite data in real-time; built it using Spring, AngularJS, and MongoDB, TensorFlow, and Google Maps.

Its main features were:
• real-time position tracking of clouds as it would show the path a cloud followed to its current position.
• classifying if it rained over an area using machine learning.
• storage of all the data to allow users to be able to check the weather state in past.
• rendering of satellite data as tiles for image layers.

Between 2007 and 2014, I have been working with a small team on the back end of an MMORPG game where I was mainly in charge of:
• Networking: I built the network layer using Netty to ensure client communication was optimized for thousands of players with no lag in crowded areas.
• Authentication/Security: I built an authentication server that authenticates players to multiple game servers. It used 2-step verification with Google Authenticator to provide extra security for the players.

• Artificial Intelligence: There are a lot of non-player characters (NPCs) in the MMORPG world, for which I had built the core functionality that makes them move, attack, talk, and interact with players.

• Performance Optimizations: My colleague referred to me as the Java bible. I was in charge of most code reviews, suggesting performance optimizations based on my inner JVM knowledge and extensive Java standard library source code knowledge.

• Algorithms: I was in charge of writing the algorithms such as space partitioning for the optimized search of objects in the area, path-finding for navigation of characters around obstacles, collision detection, point-in-shape detection, and intersection detection.