George Bezerra

Stack: Python, Django, PostgreSQL, Redis, DynamoDB

Promotions Team:

• Development of a system of promotions directed to user and user groups and of redeemable coupons.
• Maintenance of the general Promotions system for brands and stores.
• Developed a module using cryptography for creating and using millions of auto-generated coupons, sparing the need of storing all of them in the database.
• Designed the high-level architecture for the redeemable coupons project.
• Improved code quality by teaching and implementing Clean Architecture concepts in both projects.
• Mentored less experienced developers.

Backend development with Python, using both Django and Flask in a fast-growth startup.

• Mentored other developers.
• Spread the culture of quality code reviews and pull requests to improve code quality.
• Participated on improving the development environment for developers by configuring CI tools and integrating with SonarQube.
• Development of systems for internal usage.

• Back end development in Java (+ Spring/Guice) and Perl (+ Mason).
• Configuration and development using AWS resources (S3, DynamoDB, SQS, SNS, Lambda, CloudFormation, CloudWatch, IAM).
• Developed microservices (some of them using SOAP for integration, some using REST).
• Used agile methodologies for development (Scrum, Kanban). Usage of TDD for unit tests and BDD for integration tests.
• I was part of the team who adapted Amazon tax systems to support the Brazilian tax legislation for the launch of dozens of new retail categories in Amazon Brazil website.
• Learned Perl and Mason on the spot to add new features in pages of Amazon Brazil website on legacy services. Had to learn those alone, since the ones that developed the service had already left the company.
• Participated in architecture design of several systems.
• Collaborated with teams located in Brazil, US and India.

Web and mobile development, primarily frontend and, in lesser parts, backend.

• Web development using Angular 4, HTML5, CSS3 and TypeScript (eventually ES6).
• Mobile development using multi-platform tools in some projects (Ionic 3 and Cordova) and native Android development with Java 8 in others.
• Creation of RESTful APIs using Node.js and Express 4.
• Usage of agile methodology—Scrum.

I also worked in a research project in the non-relational database (NoSQL) field, mostly with graph databases (Neo4j, OrientDB, JanusGraph, among others).

Development of a dental web system using AngularJS, Node.js, Express.js, HTML5, CSS3, Bootstrap and MySQL.

• Financial analysis of government agreements made with municipalities and NGO's: assessment of the legality and regularity of the commitments and payments.
• Writing and editing of official documents for the Minister's Office.
• Operation of several government computer systems: SIAFI - Integrated System for Financial Administration, SICONV - Agreement Management System, and SIDOF - Document Generation and Processing System.

• Development of websites for the Ministry of Communications and the GESAC Program using PHP and Joomla.
• Maintenance of Java EE modules for internal systems.
• Creation of user manuals and help files.
• Planning and execution of unit and integration tests.

Programming of web systems for clients using PHP 5 with Zend Framework.