Bruno Leite - Freelance Java Developer for Hire

Java Lead Engineer

2017 - 2018

Inpoint AON

Architected a complete Java 8 with Spring project. The project finished under budget and before time.
Created REST web services for survey processing, reports, benchmark, and client configurations.
Developed a full unit test suite and coverage.
Created an email processing and queuing system for sending out surveys.
Implemented a multi-language survey system.
Implemented user security with JWT.
Created the continuous integration and deployment pipeline with Docker and CircleCI.

Technologies: Java 8, Spring

Full-stack Lead Engineer

2017 - 2017

Drum Circle Analytics

Architected the Work Force Analytics back-end application using Spring and its technologies.
Worked as lead developer, helping unblock developers and solve complex architecture and development tasks.
Structured the continuous integration and deployment pipeline on multiple environments using CircleCI, Docker, Cloud66, and AWS servers.
Integrated the application with MongoDB server.
Supported TDD and created base test cases for other developers.
Created and managed Oracle databases and MongoDB servers.
Managed AWS EC2 Ubuntu servers running Spring Boot applications as Docker containers.

Technologies: Java 8 with Spring, Angular 2+, DevOps

Full-stack Engineer

2016 - 2017

GroceryPress

Architected an AngularJS 1.x web front-end application.
Created the front-end build process using Grunt.
Compiled and packaged JavaScript and styles.
Worked as a DevOps engineer to structure the deployment pipeline using CircleCI and Cloud66.
Refactored the current AngularJS 1.x code into decoupled directives.
Reshaped the retailer application HTMLs and styles with Less according to new designs provided.
Developed a standalone Java application that runs on clients to extract DB information from legacy Sybase and communicate to FTP server.
Created a Spring Batch data integrator that imports data from various clients into a multi-retailer DB.
Created PL/SQL procedures on MySQL to merge customers and items.

Technologies: Java 8 with Spring, Angular 1.x

Java Engineer

2015 - 2017

Tasting Table

Architected and developed a web application using AngularJS 1.x and Bootstrap 3.x for creating multiple crops of a single picture.
Managed Ubuntu Linux servers and Wildfly application server.
Created REST integration with Imagga.com and Imgix APIs to post-process images.
Managed a Parse.com (Back4App) application and created JavaScript functions, cloud jobs, and integration with Foursquare, Yelp, and Algolia APIs.
Created an image URL processor that tests the validity of URLs using Java.
Created Node.js tests for Parse.com functions using Mocha, Sinon, and Chai.
Developed a dashboard that retrieves restaurant information using Foursquare API. Used Spring Boot and Angular 1.x.

Technologies: Java, AngularJS, Python

Cloud Engineer

2015 - 2015

2PVentures

Fixed production cloud environments that were running out of memory.
Migrated the project to AWS Lambda and exposed the API through AWS API Gateway.
Handled algorithm analysis for improving code execution time that is called thousands of times per second.
Guided developers on code improvements and refactored architecture of existing projects.
Rewrote Hibernate mappings for better code execution time.
Architected a new application with MySQL and NoSQL integration to answer hotel rates in a lightning-fast speed.

Technologies: Java, Cloud Computing

Java Leader Architect

2014 - 2015

ITC Solutions Australia

Built a Red Hat-based JBoss EAP Java architecture using Apache Maven, JPA (Hibernate), JSF, Arquillian test framework, and database to UI scaffolding using JBoss Forge.
Set up an OpenShift cloud environment and continuous integration guide.
Created Agile development guidelines.
Handled multi-project integration.
Used a PostgreSQL database.
Managed the Git repository.

Technologies: Java EE, JBoss

Java Senior Developer and Architect

2013 - 2015

IBM

Handled architecture and development of Java EE components using SOAP web services, RESTful web services, test-driven development (TDD), JPA (OpenJPA and Hibernate), Unit testing (JUnit and JMock), integration testing, and a continuous delivery model.
Implemented architecture and setup of cloud environments, creating images and a provision/deprovision process. The environments were used as environments for developers hired through the IBM Liquid platform.
Handled lead development events in the IBM Liquid platform (a crowdsourcing platform to bring value to clients in short cycle assignments), creating development specifications, validating solutions provided by developers, and integrating code into existing one.
Created and improved processes for automating tasks such as deployments, module packaging, and Websphere management with Python scripting.
Handled administration and configuration of the Websphere Application Server.
Worked as a support analyst, providing ongoing support for high availability production environments.
Handled process verification and adherence to Agile software development.

Technologies: Java EE

Java Consultant

2014 - 2014

Quantified Skin

Analyzed the existing product and indicated points of improvement and changes needed so the application could be scalable.
Estimated the complete project development timeline and architecture.
Made use of Git project sharing.

Technologies: Java EE

Java Senior Developer

2012 - 2013

Getnet - Brazil

Handled architecture and development of a geo-referencing application to map customer addresses to latitude/longitude using Google API.
Maintained high-availability web services that were used to interconnect different products.
Handled architecture of a legacy web service migration to state-of-art technologies.
Developed a CAPTCHA solver for both image and sound processing.
Managed WebLogic servers and created deployment processes.

Technologies: Java EE

Java EE Developer

2011 - 2012

ADP

Developed Java components for managing security in ADP's portal application.
Worked on the migration of a portal platform to a PaaS business model.
Held meetings with stakeholders to define the goals of the project.
Managed a WebLogic application server.
Engaged in refining Scrum development processes.

Technologies: Java EE

Technology Director

2008 - 2010

Megacargo Logística

Developed software to integrate various products in the Grails and Java platform, using Hibernate, Spring, NetBeans, and other auxiliary frameworks.
Redesigned company HR, payroll, and logistics processes.
Performed analysis and investment approvals.
Implemented, verified, and created processes to use technological tools for management (ERP, CRM, HRM, Google Apps).
Reshaped financial processes: accounts payable, receivable, billing, and cash flow.
Performed sector restructuring in accordance with accounting laws.
Developed plans for jobs and wages. Negotiated with suppliers and major customers.
Managed people, including recruitment, admission, discharge, and influencing interpersonal relationships between employees to improve motivation and results.

Technologies: Entrepreneur, ERP, CRM, HRM, Google Apps, Grails, Java

Java Analyst and Developer

2007 - 2008

Focu Security

Designed a cross-platform Salesforce project for mobile devices using Java technologies, SuperWaba, and TotalCross.
Used Eclipse IDE, ANT, and SVN. Developed web services with RESTful and SOAP technologies.
Developed Java web services with Hibernate and CSV and XML parser for database data synchronization.
Developed a back-end for receiving and processing data generated on mobile devices.
Worked as a product owner and held meetings to sell the project.

Technologies: Java

Developer

2006 - 2007

Criterium Business Mobile

Developed and maintained a Salesforce Palm OS application in C and C++.
Developed Java web services for a web sales application.
Redesigned sales reports using JasperReports with Java code and PL/SQL procedures.
Engaged in improvement of the Scrum Agile process.
Created unit tests for web components.

Technologies: C, C++, Java

GroceryPress (Development)

http://grocerypress.com/

GroceryPress is a personalized digital promotions and loyalty applications suite for natural and specialty retailers. I worked as full-stack engineer in various parts of the project, first building a front-end application called Consumer using AngularJS. I structured the whole architecture, CI, and continuous deployment. Built a console application that runs on client machines to extract data from Sybase DBs as well as manipulate and communicate to GroceryPress FTP server using Java with Gradle builds. I worked on the core application on ingestion module to enable Spring Batch ingestion of client data into multi-retailer DB.

IBM - IEPD (Development)

http://www.ibm.com

IEPD is an inter-enterprise data orchestrator that treats and routes calls from failing hardware devices, and takes immediate actions to solve the problems. Those calls can come from web services calls or emails. I worked as a Java developer writing components for that application. After 2013, IBM started using a new methodology for development called Liquid, where the development is packed in small pieces and externalized. I worked on implementing this new methodology in our project, preparing environments in cloud servers, planning the specifications for the developers, overseeing the process and reviewing the code.

Tasting Table Flavour (Development)

http://tastingtable.com

Flavour is an application developed on Back4App using a Parse.com back-end. I worked as the lead developer of the project, writing Cloud code functions and Jobs in JavaScript. Some functions were integrated with external services like Foursquare, Yelp and Algolia. Developed tests with Node.js testing suite with Mocha, Sinon and Chai.

Tasting Table AutoCrop (Development)

http://tastingtable.com/

Autocrop is an internal tool that I built for Tasting Table that enables the user to make multiple crops of a picture in a single-page app. It uses AngularJS 1.x for UI, Cropper.js, and Imgix API for manipulating pictures. I also created a Java back-end for managing the requests and calling external APIs.

Work Force Analytics (Development)

http://drumcircleanalytics.com/

Work Force Analytics is an application that uses employee data for building analytics visualizations like charts and widgets. I've worked as the lead architect and developer, having set up the continuous integration and deployment pipelines. The application back-end was built using Spring Boot and derived technologies using Oracle and MongoDB as data sources. The front-end used Angular 2+. As the project was on very tight schedule, there were timing challenges to be fought as well.

ADP - PaaS Migration (Development)

http://www.adp.com

ADP's HR portal is one of the most successful and used in the world and was migrating their portal to a PaaS platform. I worked as a Java developer on the security components conversion.

Focusales (Development)

I developed a Salesforce application from scratch to a former Java platform for handhelds called TotalCross. Since it used Java 1.3, I had to implement some code needed from higher versions of Java using basic calls. I developed an ORM framework with Hibernate and JPA functions. This application communicated with a back-end to synchronize sales data.

Guide to Spring Boot REST API Error Handling (Publication)

https://www.toptal.com/java/spring-boot-rest-api-error-handling

Spring Boot gives very useful error messages to engineers building REST APIs. Yet, those same messages are noisy and useless for the API consumer, not to mention they reveal implementation details. Luckily, there are simple ways of handling this.

Languages

Java, CSS, SQL, JavaScript, XML, HTML, UML, Bash Script, Python, HTML5, Jython, Batch, C++, CSS3, Groovy, C, CoffeeScript, C#

Frameworks

JPA, JSF, PrimeFaces, Java Agent DEvelopment (JADE), Arquillian, Jersey, JUnit, Hibernate, Grails, Apache Shiro, Bootstrap, Spring Security, Spring Boot, ADF, Apache Axis, JNI, Jasmine, Swagger, AngularJS, Spring, Apache Velocity, Spring Batch, Apache Struts, Protractor, Loopback, StrongLoop

Libraries/APIs

Google Maps, Parse SDK, JAX-WS, jMock, JAX-RS, JDBC, Facebook SDK, Facebook Open Graph API, RESTEasy, Imagga API, Dojo Toolkit, HikariCP, Google Gson, Eclipse Persistence, Facebook API, Java Security, Underscore.js, Google API, JAXB, SLF4J, Backbone.js, OpenJPA, jQuery, Chai, Sinon.JS, Moment.js, Node.js

Tools

WildFly, Subversion (SVN), Docker Hub, Cloud66, CircleCI, Shell, Apache Tomcat, Maven, Git, SugarCRM, Grunt, IntelliJ IDEA, Sentry, GitHub, Eclipse IDE, Apache Ant, Gradle, jqGrid, AWS SQS, TargetProcess, NPM, Jenkins, CVS, Mocha, Karma, Kibana

Paradigms

Software Testing, Continuous Integration (CI), Web Design, Model View Controller (MVC), Object-oriented Programming (OOP), SOA, Agile Software Development, Test-driven Development (TDD), Scrum, Unit Testing, REST, Pair programming, DevOps

Platforms

NetBeans, JSE, Oracle, Parse, AWS EC2, Ubuntu, Jelastic, Windows, Red Hat Linux, Java EE, Linux, JBoss, AWS Lambda, Apache Server, WebSphere, Docker, Java ME, Android, Windows Mobile, Algolia

Storage

NoSQL, MySQL, PostgreSQL, Microsoft SQL Server, JBoss AS, AWS S3, Spring Data JPA, MongoDB, DB2, SQLite, Sybase, JSON, Oracle PL/SQL

Other

WebServices, Cropper, AJAX, Back-end Development, WebSphere Application Server, Bluetooth, Software Architecture, RESTful Web Services, SSH, Image Processing, Angular Bootstrap, Web Server Development, SOAP, GlassFish, EhCache, WebLogic, Logback, Apache Commons, Active Directory

Bachelor's degree in Computer Engineering

2005 - 2013

Pontificia Universidade Católica do Rio Grande do Sul - Porto Alegre, Brazil

Oracle Certified Professional, Java SE 6 Programmer

MAY 2011 - PRESENT

Oracle