Designed, developed admin UI to subscribe users (phone numbers) to a specific program, delete subscribers and send messages via SMS.Designed, developed analytics data storage with Pentaho suite tools (Kettle, Pan, Kitchen). Created/Scheduled import jobs to create/update/delete/move subscribers, locations, offers, signage content and branding data into the system (ETL). Extracting data files from Amazon S3 Cloud, transforming/processing data from files (.csv, .xls) and loading data (MySQL databases) via jobs/transformations. Designed, developed services to support platform (redemptions, mobile, marketing UI). RESTful Web Services to retrieve, remove, redeem, view offers, and register users.Designed, developed Message Queues (RabbitMQ) process to send reminder to pending subscribers, subscribe users (program, campaign), send generic message, surveys, via SMS aggregators. Designed, developed SMS simulator to test system process (scenarios) without sending through a real aggregator.Designed, developed UI to display report file links via automatic connection to Dropbox. Setting up Oauth authentication in order to access/retrieve report links from a client folder when user logged into the system. Designed Android applications supporting iBeacon and push notification technologies (Urban Airship & Proximity), in order to send best deals and offers to a specific target.Worked on migrate multiple server between Dimension Data Cloud and Amazon Elastic Cloud 2 (CentOS boxes). Setting up J2EE/Spring, Maven, Groovy and Grails, PHP, Message Engine (RabbitMQ), Pentaho projects and databases. Mentor junior developers on SQL, Java, Groovy and Grails, Linux technologies.