Profileimage by ngel CerveraClaudio Senior Software / Senior Data Architect / Solution Architect from Whitegate

Ángel Cervera Claudio

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Last update: 24.06.2022

Senior Software / Senior Data Architect / Solution Architect

Company: SimplexPortal Ltd
Graduation: Technical Engineer Bachelor Degree (4 years) in Computer Systems / Extremadura University.
Hourly-/Daily rates: show
Depends project location, duration and tech stack
Languages: English (Full Professional) | Spanish (Native or Bilingual)

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).

Project history

05/2022 - 06/2022
Senior Data Architect.
The Block (1000-5000 employees)
Other
Skills developed: Scala, Java, Architecture
Description:
• PoC for a Cryptocurrency Exchanges data ingestion Architecture, Design,
and Implementation using Google Cloud Provided (mainly Google Data Fusion
and BigQuery) technologies and Scala. GCP services comparison (ex. DataPoc
and DataFlow) were included in the PoC.

10/2021 - 05/2022
Senior Data Architect.
UnitedHealth Group / Optum (5000-10.000 employees)
Other
Project: Stars

Skills developed: Scala, Java, Linux, Architecture
Description:
• Implementation of best practices and SDLC.
• Standardization and rearchitecting of processes.
• Reduction of FTE in data processing through generic framework and
processes in Spark.
• Design of Cloud Migration Action Plan.
• Metadata driven ingestion framework Arquitecture, Design and PoC
implementation.

12/2020 - 10/2021
Senior Software Engineer
Dun and Bradstreet (5000-10.000 employees)
Other
Project: Direct+ Monitoring

Skills developed: Python, Scala, Spark, Java, AWS, Cascading, Oozie.
Description:
• Decoupling pipelines via AWS services.
•SnowFlake pipelines.
•Cascading pipelines.

06/2020 - 11/2020
Solution Architect
Swiss Re (1000-5000 employees)
Insurance
Project: Working on different PoCs
Skills developed: Java, Azure, FaaS, SWIFT message files, Python, Scala,
Databricks, Spark.
Description: Design and implementation of different PoCs related to:
  • Function as a Service (FaaS) and Event-Driven architecture.
  • Spark and microservices integration and Spark processing in Scala vs Python, PySpark and Pandas.

04/2018 - 03/2020
Senior Software Engineer.
Dun and Bradstreet
Other
Project: Platform Prime

Skills developed: Scala, Spark, Java, AWS, Cascading, Oozie, Avro, Hbase, ORC, etc.

Description: BigData lake that collects data from data providers and exposes it in a homogeneous format.


10/2017 - 04/2018
Senior data engineer
Nitro Software Inc.

Project: Analytics

Skills developed: Scala, Spark, AWS (EMR, Athena, Data Pipeline, etc...), Play.

Description: Collection, processing, and reporting Desktop/Cloud/Services events.


10/2015 - 09/2017
Senior sorftware engineer
Dun and Bradstreet

Project: Direct+ Search

Skills developed: Agile project using Scrum, Scala, Spark, ElasticSearch, Java, AWS (EMR, Elasticbeanstalk, etc...), Spring, Rest services with Jax-RS / Jersey, Python, Cascading

Description: API to almost real time search in the D&B full data set. I participated in all components of the product the indexing process, the Rest API, infrastructure, design etc.


03/2015 - 10/2015
Senior java developer
EMC

Project: Metering and monitoring

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.

Description: As part of an international BigData project, we built the software to collect and show metrics and monitoring the whole system, from the ingestion process to the analysis, gathering system information and business information.


03/2014 - 02/2015
Senior java developer
EMC

Project: BigData Lake / ECPS

Skills developed: Java, spring-integration / microservices, RabbitMQ, Hadoop, HDSF, Zookeeper, Sqoop, PIG, MongoDB, Greenplum, linux (Ubuntu Server / Desktop), SVN, Junit, Maven, scrum, agile, Spring-Mvc (RestFul).

Description: As part of an international BigData project, we built the software to collect and analize a large ammount of heterogeneous data files gathered from a lot of different systems. This ingestion application was designed with a set of microservices communicated via RabbitMQ. With this data, EMC was capable of analyzing and extracting a lot of different information, like predicting possible problems in EMC customer's servises and devices, report usage to different platforms, etc...


08/2013 - 01/2014
Senior JavaEE Developer / Senior GIS Developer and Technical Lead.
Silyan Software

Project: Silyan Spatial

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

Description: I built a service to calculate influence areas (Driving Distance) using distributed memory graph network to obtain incredible performance and replace pgRouting solutions. It has two different modules:

  • The service used to calculate areas in real time, based in graphs.
  • The Hadoop architecture to prepare optimized graph based in OpenStreetMap data.

07/2013 - 01/2014
CTO
elocalia

Project: Real Estate Analytics

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

Description: We built a technology platform for a 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 Geospatial data.


09/2012 - 01/2014
Senior Java Developer / GIS Developer and Technical Lead.
Carrefour

Project: Retail/Franchise premises

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.

Description: 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.


10/2008 - 01/2014
Senior Software Developer and Technical Lead.
Silyan Software

Project: SimplexPortal

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.

Description: This is my more ambitious project. It's a complete CMS/ECOMMERCE SAAS hight performance solution, developed from scratch and based in JavaEE technologies. We Started the project in 2008 after testing 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.


07/2012 - 10/2013
Online Instructor
GeoSpatial Training

Project: OpenSource GIS technologies

Description: I was the instructor in the course “Open Source GIS Bootcamp” for Spanish speakers and English speakers people not needed.


04/2009 - 03/2012
Senior Java Developer / GIS Developer and Technical Lead.
Meyem

Project: Meyem Online / GIS Module

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.

Description: Meyem is one of the most important geomarketing companies in Spain. We built the CRM, ERP and GIS applications 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 of Spain.


02/2011 - 11/2011
Senior Java Developer / GIS Developer and Technical Lead.
DataCentric

Project: Tuwebmap

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.

Description: We built a web application to exploit existing “big data” database with heterogeneous information. This data is related with geospatial information and users can generate new data creating new shapes and recalculating new data based on the existing.


06/2010 - 12/2010
Senior Software Developer and Technical Lead.
Arcobaleno 2000

Project: www.arcobaleno2000.com

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.

Description: We built an ecommerce and CRM solution based in the first version of SimplexPortal platform, with a strong integration of Microsoft Navision.


05/2008 - 12/2008
Senior Software Developer and Technical Architect.
ArcelorMittal

Project: Framework agreements

Skills developed: ava, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, maven, Hibertante, Sqlserver database, Tomcat, Websphere, webservices, SharePoint.

Description: 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.


04/2008 - 06/2008
Team Manager, Senior Software Developer and Technical Architect.
Panama Government
Project: Marina Mercante/Gente de Mar

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.

Description: 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 translators and the reverse process.


04/2008 - 06/2008
Team Manager, Senior Software Developer and Technical Architect.
Panama Government

Project: Biometric suitcase

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.

Description: 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), storages this data locally and sends it to the central servers when the suitcase has an Internet connection.


11/2007 - 12/2007
Senior Software Developer and Technical Architect.
Mexico Government

Project: Business Intelligence Module

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.

Description: We built the business intelligence module integrated with the application used for the generation and management of Mexican Passports.


08/2007 - 10/2007
Senior Software Developer and Technical Lead.
International Council for Game and Wildlife Conservation

Project: CIC Wildlife

Position: Senior Software Developer and Technical Lead.Skills developed: Java, JavaEE (jsp, jstl, servlets, etc.), Spring (spring-code, spring-security, spring-dao, spring-mock, etc.), struts, maven, JDO, Mysql, Tomcat, JasperReports.

Description: We built an ERP used for the management, publication and certification of international hunting trophies.


01/2006 - 01/2007
Senior Software Developer and Technical Architect.
Asturias Government

Project: asturias.es

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.

Description: In this parenthesis as a Freelancer, I was a 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.


08/2006 - 09/2006
Senior Software Developer and Technical Architect.
NaturalCom

Project: NCRouter

Skills developed: Java, J2ME, Bluetooth, RPC, WebServices, Anoto Digital Pen Technology.

Description: We built a mobile router, that gets information from Anoto Digital Pen, stores this information in the mobile device and resends the data to a 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.


04/2005 - 09/2006
Senior Software Developer and Technical Lead.
HCI International

Project: Booking tool

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, MySQL.

Description: We built a booking and ERP application for HCI International, broker between hotel chains and tour operators.


02/2006 - 08/2006
Senior Software Developer and Technical Architect.
Amena

Project: Natural Notes

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, MySQL, Anoto Digital Pen Technology.

Description: We built an application based in Anoto Digital Pen Technology, that synchronizes handwritten book with an online digital version (in pdf format).


08/2005 - 04/2006
Senior Software Developer and Technical Lead.
Calidad De Hogar

Project: Calidad de hogar

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, MySQL.

Description: 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.


02/2005 - 02/2005
Senior Software Developer.
IP Soluciones

Project: puntoinmobiliario.com

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Postgresql.

Description: This application was a site and a CRM/ERP for a real estate company. I built the online search module.


11/2004 - 01/2005
Senior Software Developer and Technical Lead.
Ancades

Project: Inventory and Bidding

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Mysql.

Description: We built a simplex CMS module to edit the inventory and bidding of horses.


09/2004 - 10/2004
Senior Software Developer and Technical Architect.
Cyrus

Project: Cyrus

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Mysql.

Description: We built a CRM/ERP for horse studs management.


04/2004 - 08/2004
Technical Architect and Technical Lead.
Crédito y Caución and IBM/INSA

Project: Technical Lead

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS.

Description: 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 the final user.


01/2004 - 04/2004
Senior Software Developer.
Danone

Project: Danone Yellow Pages / Danone White Pages

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, LDAP.

Description: We built a human resource portal and intranet with profiles and skills of employees and providers.


01/2004 - 04/2004
Senior Software Developer.
Innova Solutions

Project: Glaciar / LogHost

Skills developed: Java, PERL.

Description: We built an application for analysis and exportation of log systems


04/2003 - 11/2003
Senior Software Developer, Technical Quality Supervisor.
Espasa Calpe

Project: Campus Home English / CEAC English

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, SQL Server.

Description: We built the first version of the elearning portal of Home English and CEAC.


04/2003 - 11/2003
Senior Software Developer.
IP Soluciones

Project: For a luxury Reale estate company

Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Postgresql.

Description: We built a CRM and real estate Portal.


11/2001 - 02/2003
Senior Software Developer, Software Architect.
Santander Bank
  • Project: Security module

           Skills developed: Java, Swing, AWT, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic.

           Description: We defined and developed the security standard for applications at treasure department.
 

  • Project: Contract Management

          Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic.

          Description: We built an application for management and evolution control of contracts between risk and legal advice departments.
 

  • Project: Subcontracted employees timecard
          Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic.

          Description: We built an application to management and timecard for subcontracted employees.
 

  • Project: Warrants

          Skills developed: Java, Swing, Tibco.

          Description: We built an application to realtime management and monitoring of Warrants product transactions.
 

  • Project: Fixed income securities management
          Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic.

          Description: We built the software used to manage the product “Fixed income securities” for wholesalers brokers.
 

  • Project: Equity funds management

    Skills developed: Java, J2EE, JSP, JSTL, Servlets, HTML, CSS, Oracle, Weblogic.

    Description: We built the software used to manage the product “Equity funds” for wholesalers brokers. This was my first project as a Freelance and the first project developed in Santander bank using java technologies. But Java is here to stay!




01/2000 - 01/2001
Software developer / Team Manager.
Qarana Solutions
  • Project: Diversia

           Skills developed: Java, ant, Javascript Server Side (With broadvision), Oracle database

          Description: Thanks to the philosophy of the company, in that time I learned a lot about new trending of software development.Ecommerce, worldwide leader, 
          specialist in DVDs, books y CDs, using Broadvision Javascript server side and oracle technologies.
 

  • Project: Banca Credem

           Skills developed: Java, ant, Javascript Server Side (With broadvision), Oracle database

           Description: Home banking developed in Italy using Broadvision Javascript server side and oracle technologies.
 

  • Project: Patagon Aggregator


           Skills developed: Java, ant, Javascript Server Side (With broadvision), Oracle database

          ​​​​Description: I became the team manager in an important project for Patagon. Multi-bank Portal (aggregator) for Patagon using Java.


01/1999 - 01/2000
Software developer.
Indra

Project: Telefónica

Skills developed: C++, Visual C++, Oracle Database, PLSQL, DBASE, Big Data.

Description: 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. We wished to have Hadoop!


01/1998 - 01/1999
Software developer.
Xtrem

Project: El corte Inglés

Skills developed: C++, Visual C++, MFC, Cristal Reports, SQL Server.

Description: This was my first paid project as 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.

Time and spatial flexibility

Anywhere if at least 80% remote work

Other


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

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