Full Stack Developer

I work on a Graph database called YANG DB. This is a distributed database that is designed to store YANG structured data(xml) in a distributed, efficient and scalable manner on Cassandra storage cluster.

First project was for Gameloft:
 A NO SQL server(MasterApp) that receives requests from a ClientApp and forwards them to a bunch of NodeApp which search the data stored on their file system in order to fulfill the request.The Masters acts as a management layer dipatching requests to the various Nodes to be handled.The system supports replication so that if one of the Node machine fails the data can be found in replicas of all the other Nodes.

All 3 applications that compose the system are deployed on numa servers with Debian Jessie connected by 10Gb link.
The framework used is boost asio and the pattern that we use most often is one io service per thread per multiple connections.This guarrantes a good scalability of bandwidth used by our system vs number of cores used to deploy the application.
A great number of optimizations are needed from file system to tcp to linux scheduler to NIC IRQ handling.

Second project for Viva:
A webapplication using AngularJS, Bootstrap UI and Ionic.The backend is Grails deployed in Tomcat server and is accessed by the the frontend in a REST manner.
I also do the design and documentation of the features implemented by working closely with the Product Manager.

Technical environment: Ubuntu, Java 7, Boost C++

Projects:

• Here i design and develop web applications oriented towards education. This means user management and courses and test management(SCORM) 

Technical environment: Struts,Spring MVC,MYSQL,Maven,Ant

Projects:

• ITC develops application for Nortel Networks a world class producer of network equipment and software. 
• I develop and maintain an application called EPM(Enterprise Policy Manager).This application configures QoS(Quality of Service) on most network devices from Nortel. The application has an UI(User Interface) written in Java and tested on Win2000 and Solaris. The UI closelly follows the MVC(Model View Controller) pattern and saves the data in an MySql database using the EJB3.0.The EJB3.0 beans are deployed in a JBoss server. So the EJB 3.0 query language is pretty familiar to me. I also use plain old SQL when i want to check the DB. The UI uses java Swing library. Besides that there is also involved a SNMP third party library used to query the devices directly through SNMP. Every device has some tables in wich it stores information about its configuration. Through SNMP you can read those tables and find out various information about a device such as the number of ports or the software version that runs on that device. Before Jboss data was saved in LDAP so we used a java library to access LDAP server. 
• The user configures some QoS policies in the UI wich are then saved in the DB. After that a C†† program reads the information from the DB and configures the devices(Nortel devices) by sending CLI(command line interface) commands or COPS messages for devices that supports COPS. 
• The nature of this application requires me to have a basic understanding of network protocols and device comands (for configuring these devices in a network enviroment). 
• My tasks include developing new features in the Java side of the application and solving bugs. I am also involved in the design phase of the project. In this phase when you plan a new feature you have to take into account the specific of each device type that this application supports. There are 12 device types from Nortel that this application supports.
  

Technical environment: Swing, Linux, MySql, Networking protocols