Kelvin Firmino

Ruby on Rails Lead Software Engineer at energyX Solutions Inc.
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Contact Information
us****@****om
(386) 825-5501
Location
Toronto, Ontario, Canada, CA
Languages
  • Portuguese Native or bilingual proficiency
  • English Professional working proficiency

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Jason Stoll

Kelvin is a strong, supportive and technical leader. He is talented in both planning and execution of advanced software technologies both front-end and back-end. Beyond his excellent planning and attention to detail, he is supportive and nurturing of his colleagues skills and talents that helps ensure not only a great team dynamic, but also high quality delivery of product outcomes. I fully endorse Kelvin for his skills, talents and professionalism. He is a valuable asset to any technical team or project.

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Credentials

  • Rails 4 Patterns
    Code School
    Oct, 2016
    - Nov, 2024
  • Surviving APIs with Rails
    Code School
    Sep, 2016
    - Nov, 2024
  • Git Real
    Code School
    Jul, 2016
    - Nov, 2024
  • Git Real 2
    Code School
    Jul, 2016
    - Nov, 2024
  • Mastering GitHub
    Code School
    Jul, 2016
    - Nov, 2024
  • The Magical Marvels of MongoDB
    Code School
    Jul, 2016
    - Nov, 2024
  • The Sequel to SQL
    Code School
    Jul, 2016
    - Nov, 2024
  • Try SQL
    Code School
    Jun, 2016
    - Nov, 2024
  • Blasting Off with Bootstrap
    Code School
    Apr, 2016
    - Nov, 2024
  • Rails 4: Zombie Outlaws
    Code School
    Apr, 2016
    - Nov, 2024
  • Shaping up with Angular.js
    Code School
    Apr, 2016
    - Nov, 2024
  • Staying Sharp with Angular.js
    Code School
    Apr, 2016
    - Nov, 2024
  • Rails Testing for Zombies
    Code School
    Mar, 2016
    - Nov, 2024
  • Ruby Bits
    Code School
    Feb, 2016
    - Nov, 2024
  • Ruby Bits Part 2
    Code School
    Feb, 2016
    - Nov, 2024
  • Rails for Zombies 2
    Code School
    Jan, 2016
    - Nov, 2024
  • Rails for Zombies Redux
    Code School
    Nov, 2015
    - Nov, 2024
  • Testing with RSpec
    Code School
    Nov, 2015
    - Nov, 2024
  • Try Git
    Code School
    Nov, 2015
    - Nov, 2024
  • Try Ruby
    Code School
    Nov, 2015
    - Nov, 2024
  • SEDCITEC 2015 - Lecturer of a mini course: File Versioning with Git
    Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP)
    Sep, 2015
    - Nov, 2024

Experience

    • Canada
    • Software Development
    • 1 - 100 Employee
    • Ruby on Rails Lead Software Engineer
      • Mar 2018 - Present

  • Hub Fintech
    • São Paulo Area, Brazil
    • Ruby on Rails Analyst Programmer
      • Jan 2017 - Nov 2017

      Hub Fintech is a company specialized in the prepaid segment in São Paulo, Brazil. During this job, it was performed the following duties: Developing and modifying/updating systems using technologies, such as Ruby, Ruby on Rails, Git, Stash (Corporative Bitbucket), HTML, CSS, Javascript, Jquery, MySQL. Integrating applications using HTTP requests, applying the REST architecture. Adding automated tests using RSpec and Capybara. Demanding management with queues like RabbitMQ and Sidekiq; Identifying and resolving processes and/or code problems, informing the project manager responsible when necessary; Instructing the Git best practices, managing and supporting the projects that use it. Resulting in agility in the delivery process of activities to the real environment (production); Using Agile Methodology like Scrum for better management of activities and Jira as an incident management software. Summary of technologies used: Languages: Ruby, Ruby on Rails, RSpec JavaScript, JQuery, HTML, CSS Database: MySQL, SQLite Operating System: Linux Version Control: Git Hosting platform for version control: Stash (Bitbucket corporative) API architecture: REST Demand management queues: Sidekiq, RabbitMQ Agile methodology: Scrum Incident management software: Jira Show less

    • Brazil
    • Entertainment Providers
    • 100 - 200 Employee
    • Ruby on Rails Developer
      • Aug 2015 - Apr 2016

      Fundação Cásper Líbero is a powerful company in São Paulo, Brazil who manages a vast media conglomerate which are TV Gazeta, Radio Gazeta AM, Radio Gazeta FM, the website "Gazeta Esportiva.net" and the College of Social Communication Cásper Líbero. One of its segments is a Sports Portal and TV Channel called TV Gazeta where I worked. My role in this firm was to develop a new project and features to its Sports Portal, developing a new RESTful application and automatized tests with Ruby on Rails. The project was about consumed a third-party API and store soccer matches narration to be served in an internal application. To accomplish this goal, was used Ruby on Rails as a back-end language, RSpec to create automated test, MySQL as database, and HTML, CSS, JavaScript as front-end technologies to display the API data stored. Summary of technologies used: Languages: Ruby, Ruby on Rails, RSpec JavaScript, JQuery, Angular HTML, CSS Database: MySQL, SQLite Operating System: Linux Version Control: Git Hosting platform for version control: Bitbucket, Github API architecture: REST Agile methodology: Scrum Show less

    • PHP Developer
      • Jul 2013 - Aug 2015

      Duo System is company specialized in the development of management softwares for health organizations. My role was developing and maintaining the company web applications to its Government’s Public Hospital Systems of the states of São Paulo and Rio de Janeiro in Brazil. Summary of technologies used: Languages: PHP HTML, XHTML, CSS Javascript, JQuery Database: SQL Server, MySQL Operating System: Windows and Linux Version Control: Git, Subversion Hosting platform for version control: Gitlab (corporative) Show less

    • Web Developer
      • Jul 2012 - Jun 2013

      MOV Produções Culturais is company who manages artists career, administrating studios and theaters, and also broadcasting show and events in São Paulo, Brazil. My role in this company was to maintaining and create new features to its websites using PHP as back-end language, SQL Server and MySQL as databases, and HTML, CSS and Javascript as front-end language. Summary of technologies used Languages: PHP HTML, XHTML, CSS Javascript, JQuery Database: SQL Server, MySQL Operating System: Windows Show less

Education

  • Faculdade de Tecnologia de São Paulo
    Analysis and System Development
    2013 - 2014
  • Faculdade de Tecnologia de São Paulo
    Digital Games
    2009 - 2012

Community

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