Client: Atos SyntelAtos Syntel enables enterprises to accelerate their digital journey and boost enterprise agility for better business performance.Responsibilities:-Support and maintenance of existing applications related to tokenization services.

Client: Publicis Sapient.Publicis Sapient is an American digital consulting company that helps established organizations to adopt digital solutions.Responsibilities:-Implement QA Automation test scenarios.-Use of Junit and Mockito to implement unit tests.-Corrections of errors detected during tests execution.

Marketing Ideas and Technology is a payment gateway processor that provides IT services to a Bank in Mexico.Responsibilities:-Led 20 developers grouped in different teams, responsible for tasks allocation, mentoring, best code practices, issue resolutions and architecture design.- Developed SOAP and Rest web services with Java and Spring.- Usage of AWS Lambda, Api Gateway, and Beanstalk to migrate on-premises applications to cloud.- Use of ActiveMQ to decouple fronts from large files processing.- Planning and implementation of continuous integration project using Jenkins, Git, Maven and Sonarqube

Client: Azteca Bank Mexico.Azteca Bank is a Mexican company that provides banking services, with this client I worked on many projects that include migrations, support to existing applications, design and development of new applicationsResponsibilities:-Participate in a team of 2 developers, responsible for best code practices, issue resolutions, pair programming.- Development and maintenance of backend services for using Command and DTO pattern..- Working with Struts for MVC pattern and Spring for dependencies injection, also worked with database schema refactoring to improve its performance.

Client: Elektra MéxicoElektra is a Mexican company that provides retail services, with this client I worked on development of payment of services platform.Responsibilities:- Development of Backoffice web application to register service providers and charge conditions available for use with point of sales.- Implemented MVC and DAO patterns with Struts and JDBC to develop back-end application.- Working with stored procedures, triggers, indexes, tablespaces, and a wide variety of DB Objects- Worked with Oracle as the backend database.- Use JavaScript and jQuery for the front-end maintenance and new functionality implementation.

Telnet Group is a Mexican company that develops point of sale software to restaurants.Responsibilities:- Analysis, design, and development of new features using Business Delegate and DAO pattern with Java SE and JDBC for the point of sale and back-office platform.- Development of back-office application using Java Swing and Oracle to let accountants get and register income and expenses reports as well as employee’s check-in and check-out. Lately, the reports module was migrated to a client architecture using JSP and Servlet stack.- Working with stored procedures, triggers, indexes, Tablespaces, and a wide variety of DB Objects.- SQL tuning.