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Freelance Senior Java Developer, Tech Lead, Architect

Experience:
18 y
Experience:
18 y
Location:
Last update:
21.04.2021
Register to Contact Freelancer
Availability
Available
Rate
Onsite hourly: N/A
Remote hourly: N/A
Languages
Spanish: Native
English: Near native
Area Preference
I don´t have restrictions about the time. It is possible to travel periodically in case it is needed.
Description
SKILLS
  • Java 8
  • Java 6 (Certified by Oracle) and Java 7
  • JEE
  • Spring Framework
  • JAX-WS, JAX-RS
  • EJBs
  • Guice
  • Android
  • Eclipse IDE for developing JEE applications, Android y Spring.
  • MyEclipse Blue
  • Android Studio
  • NetBeans IDE 8.x
  • Oracle JDeveloper IDE
  • Liferay Developer Studio – Portlets construction.
  • HTML, JavaScript, Framework Angular, Node.js, D3.js, JQuery, JSON, CSS, XHTML, JSF with RichFaces, JSF with PrimeFaces and JSF with Icefaces, AJAX.
  • MySQL, Postgres, SQLServer, Oracle, MongoDB, Neo4j.
  • Application Servers Glassfish, Jboss, WildFly, WebSphere, WebLogic.
  • Web Server Apache and Tomcat Web Container, TCServer, Jetty and Undertow.
  • UML 2 – Enterprise Architect.
  • JPA 2.x.
  • Grunt - Gradle - Maven – Sonar – Jenkins – SVN, Git, Tortoise SVN and TortoiseGit – Continues Integration.
  • GitLab, BitBucket.
  • Mantis and Taiga to manage issues.
  • Jasper Reports.
  • Pentaho (BI-Server, Pentaho Report Designer, Pentaho Schema Workbench, Pentaho Design Studio, Pentaho Data Integration, Weka (data mining), Pentaho Metadata for ad hoc reportings).
  • Essential knowledge in Linux.
  • Security in Applications.
  • Design Patterns
  • Best Practices in Developing.
  • Software Arquitecture.
Other skills
Metadata JAX-RS UML 2 Grunt Postgres SAP Weka JSF D3.js MongoDB Design Studio SQLServer Jboss JDBC database web application WebLogic WildFly Linux Portlets JAX-WS EJB Business Logic Design Patterns RFID Functional Programming JPA Angular Eclipse IDE Pentaho Data Integration CSS PrimeFaces Jasper Reports Node.js portlet Glassfish Android Development AJAX JSON GitLab Neo4J Java 7 Pentaho JDeveloper MySQL SAS Spring MVC Websphere Java applications Java Java language Android studio SVN Sonar digital signatures JEE backend data mining Mantis XHTML Web Container NetBeans IDE jenkins BitBucket JQuery WebSphere application server Jetty JavaScript Maven web service Guice Object Oriented Programming Struts Framework EJBs Spring Framework Oracle Liferay Tortoise SVN Application Servers Web Server Apache git TCServer SQL Server 2012 HTML Web Services Gradle Tomcat Java 8
Work & Experience
01.03.2017 — Now
QUILEIA SAS
Java and Android Developer Freelancer
projects for their clients. * I do training in IT for this company and their clients.
01.06.2016 — 31.12.2016
NECTIA COLOMBIA SAS
* I was working as a freelancer developing projects using Java. I developed a backend to access Oracle and SQLServer data through Web Services. Besides I developed a liferay portlet to be used for a client that consumed such a backend.
01.10.2015 — Now
ITS SOLUTIONS SAS
I developed a web appllication to integrate a SAP system and a legacy system through web services using Spring Framework. I did a mantainence to a legacy application developed in Java under WebSphere application server using Struts Framework
01.09.2015 — 31.08.2016
MACHINETRONICS SAS
* I developed some applications for this company using technologies such as: JEE, Spring and Android. I developed a web application in charge of registering radiofrequency readings (RFID) using tags. The used technolgies were Java, Primefaces, SQL Server 2012, Jasper Reports. I developed an Android Application using RFID to manage the entrances to an important festival in the region. I developed a web application to register entrances through footprint readings visualizing statistical reports with D3.js.
01.03.2014 — Now
PREMIER CREDIT SAS
* I work as a freelancer to this company using Java language, and using JEE technology. I developed a web application to be used as a solution for their internal process. The solution is based in the construction of dynamic foms that are created by an administrator. The used technologies were: Java, Primefaces, Oracle, Pentaho.
01.08.2013 — 31.08.2016
INGENIALAB SAS
Java Freelancer
* I worked as a Java Freelancer. I developed some web services for one of their clients. JAX-WS was used for this purpose. The database was Oracle. I was involved in a project that was in charge of developing a web application to managed electronical documents using digital signatures. The used technolgies in this project were Spring MVC, MongoDB, Java, Maven. I participated in a project to make enhancements to a web application to manage taxes for internal purposes in a telecommunication company. The technologies were Java, Primefaces, Oracle.
01.08.2012 — 30.04.2014
AULA MATRIZ SAS
Java language Trainer and Java Web Trainer
concepts.
01.08.2012 — Now
LA EQUIDAD SEGUROS O.C.
* I created a web service in Glassfish to accept payments done by a regional bank for policies incomes using technologies such as: JEE como son EJB, JAX-WS, JPA. Besides I did the configuration for the https protocol in order to secure the communication between the two parties, using a digital certiifcation.
01.06.2012 — 31.12.2015
MACROGYM
Java Freelancer
* I was working as a Java Freelancer to this company that works in fitness technology. Basically I was doing some mantainence to their core software. The technologies used were Tomcat Server and MySQL for the database.
01.04.2011 — 03.02.2012
INFORMATICA & TECNOLOGIA STEFANINI S.A.
* Outsourcing in TIGO Colombia. I worked doing some developments in Java applications in order to create new promotions using SMS texting. There I used technologies such as: Java Plano (POJO) and JDBC with connectionto a DB Oracle.
01.05.2009 — 28.02.2011
GATTACA S.A.
* Portal Institucional Contraloría General. In this project I worked in some adjustments and creation of new liferay portlets in order to be integtrated in the Instituional Portal. This project was developed using JEE Glassfish and database MySql. Besides I did the implementation of a business intelligence solution using Pentaho, in order to analize the information provided by regions subject to be controled. These analizes were done using cube, dimensions and the star model, using a technique called ROLAP.
01.11.2007 — 30.04.2009
Empresa: Business Logic LTDA
Java developer
* I worked in several tasks such as, gathering requirements for Phillips Colombia S.A. to migrate a .Net Application to Java. Besides I worked as a Java developer in a project for an instituion called INVIAS where we used some technolgies as Java, JSF, EJB, JPA. This last project should provide a implementation for the ISO-19115 specification in order to define geospatial metadata.

Description

SKILLS
  • Java 8
  • Java 6 (Certified by Oracle) and Java 7
  • JEE
  • Spring Framework
  • JAX-WS, JAX-RS
  • EJBs
  • Guice
  • Android
  • Eclipse IDE for developing JEE applications, Android y Spring.
  • MyEclipse Blue
  • Android Studio
  • NetBeans IDE 8.x
  • Oracle JDeveloper IDE
  • Liferay Developer Studio – Portlets construction.
  • HTML, JavaScript, Framework Angular, Node.js, D3.js, JQuery, JSON, CSS, XHTML, JSF with RichFaces, JSF with PrimeFaces and JSF with Icefaces, AJAX.
  • MySQL, Postgres, SQLServer, Oracle, MongoDB, Neo4j.
  • Application Servers Glassfish, Jboss, WildFly, WebSphere, WebLogic.
  • Web Server Apache and Tomcat Web Container, TCServer, Jetty and Undertow.
  • UML 2 – Enterprise Architect.
  • JPA 2.x.
  • Grunt - Gradle - Maven – Sonar – Jenkins – SVN, Git, Tortoise SVN and TortoiseGit – Continues Integration.
  • GitLab, BitBucket.
  • Mantis and Taiga to manage issues.
  • Jasper Reports.
  • Pentaho (BI-Server, Pentaho Report Designer, Pentaho Schema Workbench, Pentaho Design Studio, Pentaho Data Integration, Weka (data mining), Pentaho Metadata for ad hoc reportings).
  • Essential knowledge in Linux.
  • Security in Applications.
  • Design Patterns
  • Best Practices in Developing.
  • Software Arquitecture.

Main Skills

Other Skills

Metadata JAX-RS UML 2 Grunt Postgres SAP Weka JSF D3.js MongoDB Design Studio SQLServer Jboss JDBC database web application WebLogic WildFly Linux Portlets JAX-WS EJB Business Logic Design Patterns RFID Functional Programming JPA Angular Eclipse IDE Pentaho Data Integration CSS PrimeFaces Jasper Reports Node.js portlet Glassfish Android Development AJAX JSON GitLab Neo4J Java 7 Pentaho JDeveloper MySQL SAS Spring MVC Websphere Java applications Java Java language Android studio SVN Sonar digital signatures JEE backend data mining Mantis XHTML Web Container NetBeans IDE jenkins BitBucket JQuery WebSphere application server Jetty JavaScript Maven web service Guice Object Oriented Programming Struts Framework EJBs Spring Framework Oracle Liferay Tortoise SVN Application Servers Web Server Apache git TCServer SQL Server 2012 HTML Web Services Gradle Tomcat Java 8

Work & Experience

01.03.2017 — Now
QUILEIA SAS
Java and Android Developer Freelancer
projects for their clients. * I do training in IT for this company and their clients.
01.06.2016 — 31.12.2016
NECTIA COLOMBIA SAS
* I was working as a freelancer developing projects using Java. I developed a backend to access Oracle and SQLServer data through Web Services. Besides I developed a liferay portlet to be used for a client that consumed such a backend.
01.10.2015 — Now
ITS SOLUTIONS SAS
I developed a web appllication to integrate a SAP system and a legacy system through web services using Spring Framework. I did a mantainence to a legacy application developed in Java under WebSphere application server using Struts Framework
01.09.2015 — 31.08.2016
MACHINETRONICS SAS
* I developed some applications for this company using technologies such as: JEE, Spring and Android. I developed a web application in charge of registering radiofrequency readings (RFID) using tags. The used technolgies were Java, Primefaces, SQL Server 2012, Jasper Reports. I developed an Android Application using RFID to manage the entrances to an important festival in the region. I developed a web application to register entrances through footprint readings visualizing statistical reports with D3.js.
01.03.2014 — Now
PREMIER CREDIT SAS
* I work as a freelancer to this company using Java language, and using JEE technology. I developed a web application to be used as a solution for their internal process. The solution is based in the construction of dynamic foms that are created by an administrator. The used technologies were: Java, Primefaces, Oracle, Pentaho.
01.08.2013 — 31.08.2016
INGENIALAB SAS
Java Freelancer
* I worked as a Java Freelancer. I developed some web services for one of their clients. JAX-WS was used for this purpose. The database was Oracle. I was involved in a project that was in charge of developing a web application to managed electronical documents using digital signatures. The used technolgies in this project were Spring MVC, MongoDB, Java, Maven. I participated in a project to make enhancements to a web application to manage taxes for internal purposes in a telecommunication company. The technologies were Java, Primefaces, Oracle.
01.08.2012 — 30.04.2014
AULA MATRIZ SAS
Java language Trainer and Java Web Trainer
concepts.
01.08.2012 — Now
LA EQUIDAD SEGUROS O.C.
* I created a web service in Glassfish to accept payments done by a regional bank for policies incomes using technologies such as: JEE como son EJB, JAX-WS, JPA. Besides I did the configuration for the https protocol in order to secure the communication between the two parties, using a digital certiifcation.
01.06.2012 — 31.12.2015
MACROGYM
Java Freelancer
* I was working as a Java Freelancer to this company that works in fitness technology. Basically I was doing some mantainence to their core software. The technologies used were Tomcat Server and MySQL for the database.
01.04.2011 — 03.02.2012
INFORMATICA & TECNOLOGIA STEFANINI S.A.
* Outsourcing in TIGO Colombia. I worked doing some developments in Java applications in order to create new promotions using SMS texting. There I used technologies such as: Java Plano (POJO) and JDBC with connectionto a DB Oracle.
01.05.2009 — 28.02.2011
GATTACA S.A.
* Portal Institucional Contraloría General. In this project I worked in some adjustments and creation of new liferay portlets in order to be integtrated in the Instituional Portal. This project was developed using JEE Glassfish and database MySql. Besides I did the implementation of a business intelligence solution using Pentaho, in order to analize the information provided by regions subject to be controled. These analizes were done using cube, dimensions and the star model, using a technique called ROLAP.
01.11.2007 — 30.04.2009
Empresa: Business Logic LTDA
Java developer
* I worked in several tasks such as, gathering requirements for Phillips Colombia S.A. to migrate a .Net Application to Java. Besides I worked as a Java developer in a project for an instituion called INVIAS where we used some technolgies as Java, JSF, EJB, JPA. This last project should provide a implementation for the ISO-19115 specification in order to define geospatial metadata.

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