Rafael D.
Back-end and Systems Engineer

Skills

Ruby On Rails

Bootstrap

Cascading Style Sheets

Codeigniter

Ruby

Html

Javascript

Php

Postgresql

Mysql

Docker Cloud

Rafael is available for hire

Hire Rafael D.

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Bio

Web Developer based in São Paulo, Brazil, commenced a professional technology career at age 19, specializing in Networks with a technical degree. Holds approximately three years of experience in website and system development, with primary expertise in PHP and Ruby. Consistently pursues knowledge in emerging technologies and advances existing skills, with a focus on achieving both professional and personal growth.

Internet Programmer Assistant
10/2/2019 - 1/2/2020

Developed proficiency in website creation and web system maintenance, focusing on ensuring seamless user experiences and optimal performance. Demonstrated expertise in updating and managing website content using WordPress.
Junior PHP Programmer
10/1/2019 - 5/1/2020

Exhibited proficiency in maintaining TRC Mobile software utilizing PHP within the CodeIgniter 3 framework. Leveraged jQuery for handling AJAX requests and facilitating dynamic content integration on web pages. Conducted software installations on Raspberry Pi devices to enable operational control of turnstiles.
Support Analyst II
11/2/2016 - 7/2/2019

Developed expertise in customer service through efficient help desk support and resolution of high-priority requests in collaboration with the Ombudsman and coordination teams. Excelled in managing and resolving calls in queues labeled as Waiting for internal INCs and RITMs to ensure timely and effective issue resolution.
Developer
12/1/2021 - Present

Acquired significant experience in developing financial solutions utilizing Ruby. Demonstrated extensive knowledge in implementing various financial algorithms and processes within the Ruby framework. Showcased proficiency in leveraging related technologies such as Rails for web applications, along with proficiency in integrating relational databases like PostgreSQL and NoSQL databases including Redis. Achieved code optimization and modular design through the use of RSpec for testing, enhancing code quality and maintainability. Developed skills in continuous integration and deployment practices with tools like Jenkins and CircleCI. Proficient in version control and collaborative workflows using Git.
PHP Backend Developer
2/1/2021 - 11/1/2021

Supported and developed solutions for the Auction network utilizing PHP version 7.2 and Zend Framework. Demonstrated expertise in front-end technologies using Vue.js, HTML, CSS, and JavaScript. Efficiently managed data with the PostgreSQL database and leveraged Firebase for additional functionality.
Junior PHP Programmer
11/1/2020 - 1/1/2021

Developed proficiency in PHP version 7.3 and the Laravel framework, focusing on creating efficient routines. Designed mockups with HTML, CSS, and JavaScript to streamline front-end development. Utilized Docker for effective system setup and deployment, ensuring a consistent and reproducible environment. Managed data maintenance routines using SQL Server, ensuring robust data integrity and performance.
Jr Programmer
5/1/2020 - 11/1/2020

Mastered maintenance and development of project management association systems utilizing PHP (versions 7 and above), employing the CodeIgniter framework to structure back-end processes efficiently. Developed front-end visualizations through HTML, CSS, and JavaScript, with a particular focus on jQuery for dynamic and interactive user interfaces.
Computer Services Technician
3/2/2014 - 11/2/2016

Gained expertise in managing and maintaining Unix-based Linux servers and Windows Server 2008 environments. Developed skills in executing basic database queries utilizing SQL Server, Oracle, and PostgreSQL. Enhanced proficiency in network monitoring through the use of Zabbix, while providing comprehensive support for computer and server issues ranging from basic to advanced levels.