Daniel B.

Back-end and Systems Engineer

Kotlin Developer
2/1/2023 - Present

Developed deep proficiency in Kotlin, focusing on building scalable and robust backend solutions. Applied advanced knowledge of Spring Boot framework for developing microservices architecture, ensuring efficient and secure backend operations. Utilized Hibernate for ORM, streamlining database interactions and enhancing server performance. Actively contributed to codebase management and collaborative development using Git. Gained expertise in working with relational databases like PostgreSQL and NoSQL databases like MongoDB, enabling versatile data storage solutions. Engaged in continuous integration and delivery processes with Jenkins, ensuring seamless deployment cycles. Implemented RESTful API standards and designed efficient API endpoints to support front-end services. Enhanced backend security by adopting JWT authentication and authorization methods. Leveraged Docker for containerizing applications, improving development and deployment consistency across various environments. Actively participated in Agile methodologies, contributing to sprint planning, code reviews, and retrospectives to boost productivity and code quality.

Java Developer
12/1/2020 - 2/1/2023

Developed expertise in Java, utilizing Spring framework and JavaServer Faces (JSF) for robust application development. Enhanced front-end engineering skills through extensive work with Angular, creating dynamic and responsive user interfaces. Conducted data integration and process automation using Tibco, ensuring efficient workflow management. Demonstrated proficiency in SQL Server for relational database management and executed cloud-based solutions employing Azure, optimizing scalability and performance.

Java Developer
8/1/2020 - 11/1/2020

Maintained and evolved various Java systems across academic, financial, and inventory domains, employing technologies such as JSF, EJB, PrimeFaces, BootsFaces, Hibernate, Ant, and Maven. Utilized JBoss/WildFly for application deployment, managed version control with SVN, and generated reports using iReport. Worked extensively with MySQL for database management, ensuring robust and efficient data handling.

Software Developer
9/2/2018 - 6/1/2020

Acquired extensive experience in deploying and maintaining services on AWS, including EC2, RDS, Route 53, Lambda, S3, and CloudWatch. Managed the deployment and maintenance of a Continuous Integration environment utilizing Jenkins. Oversaw team management and led the development of REST services with JSON. Demonstrated expertise in using SonarQube for code quality analysis. Utilized JSF, Primefaces, Bootstrap, Hibernate, and Maven for front-end and back-end development. Applied Scrum methodologies to manage agile project tasks and workflows efficiently.

Mid-Level Systems Analyst
1/2/2016 - 8/2/2018

Developed technical proficiency in maintenance and enhancement of ERP systems, specifically Senior Sapiens, addressing user demands and providing support and training. Utilized LSP (Senior Programming Language) for development tasks. Demonstrated expertise in consuming SOAP WebServices. Engaged in requirements gathering and created technical and functional specifications using UML notation. Managed supplier communication through ticket systems. Designed, maintained, and supported systems developed in Java (JSF / PrimeFaces / IReport) and PHP. Offered support for the inventory control system, WMS Store. Created and maintained scripts, views, and procedures in Oracle and MySQL database systems. Implemented and utilized SVN (Subversion) for version control. Managed the installation and maintenance of Linux (CentOS and Debian) on VMware and Hyper-V virtual machines. Set up and supported the ticketing system (GLPI). Established a continuous integration environment using Jenkins, and worked with Apache and Glassfish servers across development, staging, and production environments. Deployed SonarQube for source code analysis and provided support for the TecFood system from Teknisa.

Junior Systems Analyst
8/2/2015 - 12/2/2015

Developed expertise in Java development utilizing JSF, PrimeFaces, and Hibernate. Applied SCRUM methodology effectively throughout the project duration. Ensured collaborative code maintenance and version control using SVN (Subversion).

Mid-Level Systems Analyst
2/2/2012 - 7/2/2015

Gained expertise in maintaining and implementing improvements in ERP systems (Senior Sapiens), ensuring user demand fulfillment along with providing support and training. Developed proficiency in LSP (Senior Programming Language) and consumed SOAP WebServices for seamless integration. Engaged in requirement gathering and specification creation using UML notation. Managed interactions with suppliers through call openings and provided robust support for various systems, including those for receiving and issuing electronic documents. Leveraged Java (JSF/PrimeFaces/IReport) and PHP to create, maintain, and support software systems. Offered extensive support for WMS Store inventory control systems. Demonstrated advanced skills in script creation, views, and procedures within Oracle DBMS (PL/SQL) and MySQL. Implemented and utilized SVN (Subversion) for efficient version control.

IT Intern
9/2/2011 - 2/2/2012

Specialized in the maintenance and implementation of enhancements in the company's ERP system (Senior Sapiens), addressing user demands and providing support and training. Developed and optimized scripts in Oracle SGBD (PL/SQL) and MySQL. Engineered and supported the integration system between the company's ERP and the TekFood system utilizing the Java programming language. Created detailed reports using PHP, ensuring data accuracy and operational efficiency.

Information Systems at University of Grande Rio - UNIGRANRIO
2008 - 2011

Systems Analysis and Design at Estácio de Sá University
2014 - 2015