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Helder Araujo has over 20 years of work experience in various roles.

Helder started their career as an Estagiário em Telecomunicações at FJ REDEmpresa in September 2002, where they gained experience in the field of telecommunications. Helder then worked as a Técnico de Manutenção Eletrônica at the same company from May 2003 to January 2005.

In January 2005, Helder joined Instituto Mauá de Tecnologia as an Analista de Sistemas Web and worked there until June 2011. Helder collaborated with a team of programmers, database administrators, and functional analysts, maintaining, developing, and redesigning systems used by students, employees, and professors.

Following that, Helder worked at Universidade Anhembi Morumbi as an Analista de Sistemas Web from June 2011 to May 2016. Helder was part of a team responsible for maintaining and developing systems used by students, employees, and professors. Helder also used back-end technologies like PHP (with Zend Framework 1), CSS, jQuery, Bootstrap, and Oracle database with PL-SQL.

From August 2016 to July 2021, Helder worked solo at SisAlu - Sistema de Gestão Escolar as a Desenvolvedor PHP Sênior. Helder developed various modules of a web portal used by students, parents, teachers, and school staff. Helder utilized PHP 5.6 and 7.4, as well as frameworks like Zend Expressive, Laminas, Mezzio, Laravel, and Slim. MySQL 5 was the database used for these systems.

Helder then worked at MATH from July 2021 to October 2021 as a Desenvolvedor de Software. In a scrum team, they started developing a CRM system for a client using PHP 7.4 and 8, Laravel 8 framework, CSS, Bootstrap, jQuery, MySQL 8, and followed practices like SOLID, Clean Code, and Design Patterns. Helder also used version control with Git and automated deployment with Azure DevOps, Pipelines, and Docker.

From December 2021 to March 2022, they worked at PJBank as a Desenvolvedor PHP Sênior. Helder collaborated in a squad, supporting APIs and the system interface for credit card transactions. The development was done using PHP 7 in a Linux environment. Tools like Jira, Pull Request with Code Review, Pair Programming, and Docker were utilized.

Currently, Helder is employed at 2Mundos since March 2022 as a Software Developer. Helder is working on a school management system, implementing technologies like Doctrine DBAL, DTO, PHPUnit, Swagger, PHP_CodeSniffer, PHPStan, and Sonarqube. The development environment includes Linux (Ubuntu), Kubernetes, and GitLab while using PHP 7.

Helder Araujo pursued their education in a chronological manner. From 2001 to 2002, they attended ETEC Jorge Street, where they obtained a degree in Tecnico em telecomunicações, focusing on Tecnologia em Telecomunicações. Following that, from 2003 to 2004, they enrolled in Universidade Paulista, where they earned a degree in Tecnologia em Web Design, specializing in Desenvolvimento para Web.

In addition to their formal education, Helder Araujo obtained a certification in Introdução às OKRs from Qulture.Rocks Brasil in December 2021.