Ángel Cervera Claudio available

Ángel Cervera Claudio

Senior Software Developer

available
Profileimage by ngel CerveraClaudio Senior Software Developer from Midleton
  • P25DX45 Midleton Freelancer in Ireland
  • Graduation: Technical Engineer Bachelor Degree (4 years) in Computer Systems / Extremadura University.
  • Hourly-/Daily rates: 100.00 €/hour 650.00 €/day
    Depends project location duration and tech stack
  • Languages: English (business fluent) | Spanish (first language)
  • Last update: 10.10.2017
KEYWORDS
PROFILE PICTURE
Profileimage by ngel CerveraClaudio Senior Software Developer from Midleton
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CV
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SKILLS

Personal profile


I’m passionate about new technologies, since my very first contact with my Spectrum 64k and her BASIC tutorial.
I’m a Senior Java, Scala, BigData and GIS developer. Since 1998, I have worked on more than 50 large scale projects, mainly all in Java and related technologies.
No one is more of a Java / Scala evangelist and advocate than me.
Recently, I have been in technical positions as senior software developer and tech lead, sometimes shared with team manager, software architect and project manager responsibilities.
I’m looking for challenges in large projects for big companies and visionary startups. I bring to every project agile methodologies and desire to be with a great team.
My motto is that good software is only possible with happy developers in a great work environment.


Skills summary


Senior in Java / Scala technologies, as well as rich experience in Unix/Linux environments and databases.
Experience in Test Driven Development (TDD).
Great experience in integrations with external platforms.
Listed below, a resume about the principal technologies used for me in different projects:
Scala, Akka, Sbt.
BigData: Spark, Hadoop ecosystem (HBase, HDFS, MapReduce and occasionally PIG and Sqoop) /
NoSQL Database: Elasticsearch / Cassandra / MongoDB / Hstore / Infinispan / BigMemoryGo / Trove / BerkeleyDB / Tinkerpop stack / Titan / OrientDB / Neo4J
GIS: Postgis / PGRounting / OpenLayers / Leaflet / Geotools / GeoServer
JavaEE stack (Java / JPA / JAXRS / EJB / Jsp / Servlets / etc)
TDD and testing: TestNG / Junit / Selenium / Qunit /
CI and build tools: ant / maven / Jenkins / Hudson / Continuum
SQL Database: Oracle / MySQL / Postgresql
Other Java related: RabbitMQ / Zookeeper / spring-integration /Apache commons libraries / J2ME / Threads / JDBC / Applets / Swing / XML / XML-RPC / Struts / Spring (spring-code, spring-security, spring-dao, spring-mock, etc.) / JavaMail / EJBs / JDO / Ibatis / Java WebStart / Web Services / jasperReports / Hibernate / etc...
Front end: JavaScript Client, Jquery, dustjs, bootstrap / XHTML 5 / HTML 5 / CSS 3
Application servers: Glassfish / Jboss / Tomcat / WebSphere / WebLogic / iPlanet / OC4J
Integration with OAUTH 2.0, LDAP, Amazon, social networks, privates security systems, digital payment systems (4B, Servired, Paypal, etc) etc.
Portals: SimplexPortal / Alfresco / Magnolia / Liferay
OS: Unix / Linux (Ubuntu, Debian, Gentoo, etc)
Other languages: Scala / C / C++ / JavaScript Server / Nodejs
Monitoring tools: Ambari, Nagios, Ganglia
Cloud: Amazon AWS / Cloudfoundry


Experience in team management and interaction with people, with customers, suppliers and employees.
Key achievements

My more meritorious project has been my own startup project: www.simplexportal.com/en/index.html, a CMS / ecommerce SAAS platform developed from the scratch, where I demonstrate that usability and simplicity are compatible with flexibility, powerful and performance, and It's possible using standard technologies.

In last years, my key achievements have been develop large cost software for startup projects with very low resources and in short time, using technologies considered expensive, like GIS frameworks / platforms and JavaEE, using opensource tools and frameworks.

In 2001 I was the Java tech lead in the first enterprise project base in Java/J2EE in an important bank company (Santander Bank). My share in this project was recompensed with a 2 year contract in this company as Java tech lead in one of the more important departments (The Treasury Department).

REFERENCES


Duns and Bradstreet (D&B): October 2015 – September 2017
Project: Direct + Search (API and Engine)
Position: Senior Software Engineer.
Implementation of all components of the search API product, from the indexation process until the Rest API.
Skills developed: Agile project using Scrum, Scala, Spark, ElasticSearch, Java, AWS (EMR, Elasticbeanstalk, etc), Spring, Rest services with Jax-RS / Jersey, Python , Cascading.

EMC : March 2015 – October 2015
Project: Business Data Lake / Metering and Monitoring
Position: Senior Java Developer.
As part of an international BigData project, we built the software to recollect and show all metrics and monitoring the whole system, from the ingestion process to the analysis, gathering system information and business information.
To be able to do this, we are in contact with all team related with the project.
Web: http://www.emc.com
Skills developed: Java, spring-integration, RabbitMQ, Hadoop, HDSF, Zookeeper, PIG, MongoDB, Greenplum, linux (Ubuntu Server / Desktop), SVN, Junit, Maven, scrum, agile, Spring-Mvc (RestFul), Ambari, Nagios, Ganglia.

EMC : March 2014 – February 2015
Project: ECPS
Position: Senior Java Developer.
As part of an international BigData project, we built the software to recollect and analysis a large amount of heterogeneous data files gathered from a lot of different systems. With this data, we can analyze and extract a lot of different information, like predict possible problems in EMC customer's services and devices, report usage to different platforms, etc.
Web: http://www.emc.com
Skills developed: Java, spring-integration, RabbitMQ, Hadoop, HDSF, Zookeeper, Sqoop, PIG, MongoDB, Greenplum, linux (Ubuntu Server / Desktop), SVN, Junit, Maven, scrum, agile, Spring-Mvc (RestFul).

Real Estate Analytics : July 2013 – January 2014
Project: elocalia.com
Position: Senior JavaEE Developer / Senior GIS Developer and Technical Lead.
We built a technology platform for new Real Estate company, based in BigData, Data Mining and GIS, used in the automation of search premises and calculation of ideal places for new business, depending on the marker sector, demographic data, sociological data and public survey data.
As technical lead, I tested a lot of big data and data mining tools, always from the point view of Geospacial data.
Web: http://www.elocalia.com/en/index.html
Skills developed: Java, JavaEE Stack (JAXRS, JPA, EJBs, JAXB, etc), Postgresql, Postgis, PGRouting, OpenStreetMap, HStore, Geotools, Leafletjs, jquery, javascript, dustjs, Restful, html5, css3, bootstrap, Geojson, linux (Ubuntu Server / Desktop), Mercurial, Glassfish, TestNG, ant, ivy
Other tools and frameworks tested: Cassandra, ElasticSearch, Infinispan, BigMemoryGo, Trove, BerkeleyDB, Tinkerpop stack, Titan, OrientDB, Neo4J

Silyan Software: August 2013 – January 2014
Project: Silyan Spatial
Position: Senior JavaEE Developer / Senior GIS Developer and Technical Lead.
I built a service to calculate influence areas (Driving Distance) using distributed memory graph network to obtain incredible performance and replace pgRouting solutions.
Has two different modules:

Skills developed: Java, Hadoop MapReduce, Tinkerpop Blueprints, Thinkaurelious Titan, Hbase, Cassandra, OpenStreetMap, JTS (Java Topology Suite), Geotools, linux (Ubuntu Server / Desktop), Mercurial, TestNG, ant, iv.

One of the most important supermarket chain in Europe:September 2012–January 2014
Project: Retail / Franchise premises – Marketing department
Position: Senior Java Developer / GIS Developer and Technical Lead.
We built a tool for automation, analysis and reports of commercial premises to calculate sales previsions and search ideal locations, based in real time, programmables and parameterizable equations.
Skills developed: Java, JavaEE Stack (JAXRS, JPA, EJBs, JAXB, etc), TestNG, ant, ivy, Rhino, JSR-223, Postgresql, Postgis, PGRouting, NavTeq, Geoserver, OpenLayers, jquery, javascript, Restful, html5, css3, WMS, Geojson, linux (Ubuntu Server / Desktop), Mercurial, Glassfish.

GeoSpacial Training: July 2012 – October 2013
Project: Online instructor in OpenSource GIS technologies
I was the instructor in the course “Open Source GIS Bootcamp” for Spanish speakers and English speakers people.
URL: http://www.geospatialtraining.com/index.php?option=com_catalog&view=node&id=71%3Aopen-source-gis-bootcamp&Itemid=58.

DataCentric : February 2011 – November 2011
Project: Tuwebmap
Position: Senior Java Developer / GIS Developer and Technical Lead.
We built a web application to exploit existing “big data” database with heterogeneous information.
This data is related with geospacial information and users can generate new data creating new shapes and recalculating new data based on the existing.
Skills developed: Java, JavaEE Stack (JAXRS, JPA, EJBs, JAXB, etc), TestNG, ant, ivy, Postgresql, Postgis, PGRouting, OpenStreetMap, Geoserver, OpenLayers, jquery, javascript, Restful, html5, css3, WMS, Geojson, linux (Ubuntu Server / Desktop), Subversion, Glassfish

Arcobaleno 2000 : June 2010 - December 2010
Project: www.arcobaleno2000.com
Position: Senior Software Developer and Technical Lead.
We built an ecommerce and CRM solution based in first version of SimplexPortal platform, with strong integration with Microsoft Navision.
Skills developed: Java, JavaEE Stack, maven, Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), jquery, javascript, html, css, Geojson, linux (Ubuntu Server / Desktop), Subversion, Glassfish, mysql

Meyem : April 2009 – March 2012
Project: Meyem Online / GIS Module
Position: Senior Java Developer / GIS Developer and Technical Lead.
Meyem is one of the most important geomarketing company in Spain. We built the CRM, ERP and GIS application for this company. In addition to the more typical features of CRM, ERP and GIS, this application is used for planning, coordination, monitoring and reporting of leaflets distribution in all Spain.
Skills developed: Java, JavaEE Stack (JAXRS, JPA, EJBs, JAXB, etc), TestNG, ant, ivy, Postgresql, Postgis, Geoserver, OpenLayers, jquery, javascript, Restful, html5, css3, WMS, Geojson, linux (Ubuntu Server / Desktop), Subversion, Glassfish

Silyan Software: October 2008 – January 2014
Project: SimplexPortal – www.simplexportal.com
Position: Senior Software Developer and Technical Lead.
This is my more ambitious project.
It's a complete CMS/ECOMMERCE SAAS hight performance solution, developed from the scratch and based in JavaEE technologies.
Started the project in 2008 after tested solutions like liferay, alfresco or magnolia, my team and I developed a CMS based in de facto standard technology. Looking for a SAAS solution and an easy SDK, we refactoring first version and removing completely Spring, Portlets, JSF and JCR, we have obtained an incredible hight performance and UX platform.
Skills developed: Java, JavaEE (JAXRS, JPA, EJBs, JAXB, etc), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), maven, Junit, TestNG, Oracle database, Postgresql, MySQL, Portlets, Jackrabbit, JSR170, JSR283, JSR286, jquery, javascript, dustjs, velocity, Restful, html5, css3, bootstrap, linux (Ubuntu Server / Desktop), Mercurial, Glassfish, Auth2

Panama Government : October 2008 – May 2009
Project: Marina Mercante / Gente de Mar
Position: Team Manager, Senior Software Developer and Technical Architect.
We work in the refactoring of applications used by Panama Government for the management and expedition of authorization cards.
We added features of I18N using Java standards.
Also, I coordinated translators and developers and for this proposed, we built an automatic process to find all resources, generate excel files, send files to translator and the reverse process.
Skills developed: Java, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, ant, Ibatis, Oracle database, Tomcat, Weblogic

Panama Government : April 2008 – June 2008
Project: Biometric suitcase
Position:Team Manager, Senior Software Developer and Technical Architect.
We built software for a mobile biometric suitcase (basically, a fireproof, dustprooff and waterproof suitcase with a 3G netbook and various devices connected), used to capture data (fingerprint, signature, passport photo, etc), storage locally this data and send to central servers when suitcase had an Internet connection.
Skills developed: Java, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, ant, Ibatis, mysql database, Tomcat, webservices

ArcelorMittal : May 2008 – December 2008
Project: Framework agreements
Position: Senior Software Developer and Technical Architect.
We built the ERP used to manage and negotiation of framework agreements with commodities providers.
In this project, the main difficulty was integration between SAP, SharePoint and our application.
Skills developed: Java, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, maven, Hibertante, Sqlserver database, Tomcat, Websphere, webservices, SharePoint

Mexico Government : November 2007 – December 2007
Project: Business Intelligence Module
Position: Senior Software Developer and Technical Architect.
We built the business intelligence module integrated with the application used to generation and management of Mexico Passports.
Skills developed: Java, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, ant, Ibatis, Oracle database, Tomcat, Weblogic, JasperReports
International Council for Game and Wildlife Conservation : August 2007 – October 2007
Project: CIC Wildlife
Position: Senior Software Developer and Technical Lead.
We built an ERP used to management, publication and certification of international hunting trophies.
Skills developed: Java, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, maven, JDO, Mysql, Tomcat, JasperReports

NaturalCom : August 2006 – September 2006
Project: NCRouter
Position: Senior Software Developer and Technical Architect.
We built a mobile router, who get information from Anoto Digital Pen, store this information in the mobile device and resend data to specific URL when 3G connection is available.
In server, we implement a configurable proxy who process and resend data, depending of the configuration and the data patterns.
Skills developed: Java, J2ME, Bluetooth, RPC, WebServices, Anoto Digital Pen Technology

Amena : February 2006 – August 2006
Project: Natural Notes
Position: Senior Software Developer and Technical Architect.
We built an application based in Anoto Digital Pen Technology, who synchronize handwritten book with an online digital version (in pdf format).
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, MySQL, Anoto Digital Pen Technology

HCI International : April 2005 – September 2006
Project: Booking tool
Position: Senior Software Developer and Technical Lead.
We built a booking and ERP application for HCI International, broker between hotel chains and tour operators.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, MySQL
Calidad De Hogar : August 2005 – April 2006
Project: Calidad de hogar
Position: Senior Software Developer and Technical Lead.
We built a CRM/ERP developed for the home services contractor company, specialist in foreign personal service.
This application manages meetings, personal skills, customer request, etc.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, MySQL

IP Soluciones : February 2005
Project: puntoinmobiliario.com
Position: Senior Software Developer.
This application was a site and a CRM/ERP for a real estate company.
I built the online search module.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Postgresql

Ancades : November 2004 / January 2005
Project: Inventory and Bidding
Position: Senior Software Developer and Technical Lead.
We built a simplex CMS to edit the inventory and bidding of horses' ANCADES.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Mysql

Cyrus : September 2004 / November 2004
Project: Cyrus
Position: Senior Software Developer and Technical Architect.
We built a CRM/ERP for horse studs management.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Mysql

Crédito y Caución : April 2004 / August 2004
Project: Technical Lead for IBM/INSA
Position: Technical Architect and Technical Lead.
I was the technical lead and java expert, responsable of IBM projects in Crédito y Caución.
Mainly, we built a frontend and proxy between internal services developed in COBOL and final user.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS.

Danone : January 2004 / April 2004
Project: Danone Yellow Pages / Danone White Pages
Position: Senior Software Developer.
We built a human resource portal and intranet with profiles and skills of employees and providers.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, LDAP

Innova Solutions : January 2004 / April 2004
Project: Glaciar / LogHost
Position: Senior Software Developer.
We built an application for analysis and exportation of log systems.
Skills developed: Java, PERL

Espasa Calpe: April 2003 / November 2003
Project: Campus Home English / CEAC English
Position: Senior Software Developer, Technical Quality Supervisor.
We built the first version of the elearning portal of Home English and CEAC.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, SQL Server

IP Soluciones: April 2003 / November 2003
Project: For a luxury Reale estate company
Position: Senior Software Developer.
We built a CRM and real estate Portal.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Postgresql

Santander Bank: August 2002 / February 2003
Project: Security module
Position: Senior Software Developer, Software Architect.
We define and develope the security standard for applications at treasure department.
Skills developed: Java, Swing, AWT, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic

Santander Bank: August 2002 / February 2003
Project: Contract Management
Position: Senior Software Developer, Software Architect.
We built an application to management and evolution control of contracts between risk and legal advice departments.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic

Santander Bank: April 2002 / February 2003
Project: Subcontracted employees timecard
Position: Senior Software Developer, Software Architect.
We built an application to management and timecard for subcontracted employees.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic

Santander Bank: August 2002 / February 2003
Project: Warrants
Position: Senior Software Developer, Software Architect.
We built an application to realtime management and monitoring of Warrants product transactions.
Skills developed: Java, Swing, Tibco.

Santander Bank: November 2001 / December 2001
Project: Fixed income securities management
Position: Senior Software Developer, Software Architect.
We built the software user to manage the product “Fixed income securities” for wholesalers brokers.
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic

Santander Bank: April 2001 / November 2001
Project: Equity funds management
Position: Senior Software Developer, Software Architect.
We built the software user to manage the product “Equity funds” for wholesalers brokers.
This was my first project as Freelance and the first project developed in Santander bank using java technologies. But Java is here to stay!
Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic

A large list of projects : 2001 – Currently
Position: Senior Software Developer and Technical Architect.
Above I explain briefly the more important and recent projects, but since 2001 I have collaborated in approximately 40 projects related with different sectors like banking, telecommunications, government, insurance, engineering and real estate.
I worked in important projects and companies, like Panama Government and Mexican Government biometric projects in 2008 or Santander Bank equity and debt securities management software in 2001.

The Principality of Asturias : 2006 – 2007
Project: asturias.es
Position: Senior Software Developer and Technical Architect.
In this parenthesis as Freelancer, I was member of “The core team”, a selected twelve people team, responsible for the architecture and framework used in all applications developed for the government of The Principality of Asturias.
Skills developed: Java, JavaEE, Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), maven, Junit, Ibatis, Oracle database, Oracle Application Server (OC4J), Oracle BPEL, Portlets, Vignette

Qarana Solutions : 2000 – 2001
Position: Software developer / Team Manager.
In two years, and starting as a software developer I became the team manager in an important project for Patagon.
Thanks to the philosophy of the company, in that time I learned a lot about new trending of software development.
In this company, I collaborated in 3 different projects: Skills developed: Java, ant, Javascript Server Side (With broadvision), Oracle database

Indra : 1999 – 2000
Position: Software developer.
I worked in the migration of large part of the computerization of Telefónica, from a COBOL/DBASE system to C++/Oracle, developing a complex and large batch process for big data manipulation.
Sometimes younger people think that Big Data is something new, but this is an example of Big Data in the past century! And yes, using technologies of the past century. Wish we had Hadoop!
Skills developed: C++, Visual C++, Oracle Database, PLSQL, DBASE, Big Data.
Xtrem : 1998 – 1999
Position: Software developer.
This was my first project as retributed developer. Basically, the project was computerizing of a department of “El Corte Inglés”, an important Spanish company.
It was a typically three layer architecture based in Microsoft Technologies.
Skills developed: C++, Visual C++, MFC, Cristal Reports, SQL Server.


 

TIME AND SPATIAL FLEXIBILITY

Anywhere if at least 80% remote work

OTHER


Personal WEB: http://www.acervera.com
Stackoverflow: http://stackoverflow.com/users/248304/angelcervera
Gihub: https://github.com/angelcervera
Linkedin: http://www.linkedin.com/in/angelcervera
Twitter: https://twitter.com/angelcervera
 

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