David D. Email & Phone Number

Madrid Y Alrededores, España

- Development of a REST API web backend using a serverless architecture implemented on AWS cloud for Gas Natural Fenosa in a work team of 5 people using scrum methodology. Website enable users to see gas installation bugdets (hot water, heating and/or kitchen) after giving some information about their houses and hire one of the offered companies. Technologies. Python 3.6, Postgresql, Docker, GIT, Jenkins, AWS Lambda, AWS Cognito, AWS Batch, AWS API Gateway, AWS DynamoDB, SQLAlchemy, Flask.Achievements. The project was designed and developed from scratch- Development of a big data application implemented on AWS Cloud for Gas Natural Fenosa that allows issue detection, monitoring and management produced on different elements of power supply distribution network.Technologies. NodeJS 8.1.2, Python 2.7, Postgresql, MongoDB, RabbitMQ, Auth0, AWS Lambda, AWS Redshift, Luigi, GIT, Jenkins- Development of a big data application implemented on AWS Cloud for Securitas Direct. The application had to process, adapt and normalize five million signals per day from client alarms, sensors and other devices and load them in AWS Redshift using Luigi as orchestrator, providing the data needed by several business intelligence reports.Technologies. Python 3.5, Docker, GIT, Jenkins, AWS Lambda, AWS Batch, AWS DynamoDB, AWS Kinesis Firehose, AWS Redshift, LuigiAchievements. I had to learn python and work with AWS in the course of development the project

Madrid Y Alrededores, España

- Development of an IoT platform that centralises all IoT device management and collects IoT information. The platform expose a Rest API to interact with it (provision and searching).Technologies: Java 8, Spring, Spring Data MongoDB, Hibernate, Freemarker, Jersey, OracleDB, MongoDB, RabbitMQ, Redis, Git, Maven, Docker, Cucumber, JenkinsAchievements: Migrate and evolve MongoDB integration into the platform.- Development of a new auding information service that persists all data into Apache Cassandra. Technologies: Java 8, Spring Boot, Spring AMQP, RabbitMQ, Datastax Mapper, Apache Cassandra, Git, Maven, JenkinsAchievements: the project was designed and developed from scratch.

Packlink.Com

- Development of a new platform in Java to integrate european carriers services into Packlink in a work team of 10 people using an agile methodology (mainly scrum but kanban too).Technologies: Java 8 (Lambdas, Optionals and Streams), Groovy, RabbitMQ, MongoDB, GIT, Maven, Jenkins, Nexus, Sonar (for testing coverage), Consul and Docker.Achievements: migrate and optimize several integrations from legacy php code, contribute to architecture implementation- Development of a carriers notification component to send internal and external reports.Technologies: Java, Spring Boot, Spring AMQP, Spring Data, MongoDB, RabbitMQ, Freemarker, GIT, Gradle, Jenkins, Consul, Docker.Achievements: the project was designed and developed from scratch.

Madrid Y Alrededores, España

Analyst at Iberia L.A.E.- Development of a business class seats auction web service in a work team of 2 people.Technologies: Java, JAX-WS, myBatis, Spring, Maven, Quartz, Oracle 11g, Weblogic 11g.Achievements: had to be developed on short time due to planning issues- Development of an traveller groups management website in a work team of 10 people.Technologies: Java, GWT (Google Web Toolkit), Spring, myBatis, Google Gin, XMLBeans, Maven, Velocity, Oracle 11g, Weblogic 11gAchievements: define the system architecture and start developing all layers from the beginning.

Madrid Y Alrededores, España

Developer at Antares (Telefonica)- Development of an online billing platform between clinics and insurance companies in a work team of 5 people.Technologies: Java, GWT (Google Web Toolkit), EJB 3.0, Spring, ibatis, JAX-WS, Glassfish 2, Oracle 10gAchievements: I gave support to other frontend developers as GWT specialistDeveloper at Telefonica I+D- Migration of a telecommuncations network management system to java 1.6 in a work team of 3 people.Technologies: Java, Corba, Java Applets, JDBC, Oracle 8.1g- Development of an ADSL/optic fiber provisioning website in a work team of 5 peopleTechnologies: HTML, Javascript, JSP, Servlets, JDBC, Oracle 8.1g

Ingeniero Superior En Informática, Ingeniería Informática

Master Experto En Java, Informática