Gabriel Queiroz Silva - Freelance Software Developer for Hire

CTO | Co-Founder

2008 - 2016

Flow eCommerce

Co-founded and operated a successful startup.
Delivered over 300 eCommerce projects for clients from diverse countries such as Brazil, Argentina, Chile, and Bermuda.
Provided, in partnership with the government, consulting and created eCommerce websites for more than 30 small-and-medium companies.
Managed a team of 7 members in total; apart from freelancers and outsourcing from different cultures and in different locations (Brazil and India).
Helped 90+ clients with hosting, using a private cloud composed of around 30 nodes, following a 99.5% uptime SLA and delivering over 2 million page views per month.
Developed partnerships with key players in the Brazilian eCommerce market.
Implemented the Agile software development methodology using the Scrum framework.
Created and maintained over 90 Magento extensions—including payment processing, caching strategies, third party integrations, and UI improvements.

Technologies: Magento 1, Magento 2, Php 5, Php 7, MySQL, Ruby, Python, Chef, Xen Server, Bacula, AWS

Consultant

2009 - 2009

Timor Leste Republic Government

Improved the performance and security of the government’s website production environment (http://timor-leste.gov.tl).

Technologies: Ubuntu Linux, PHP, WordPress

Web Developer

2007 - 2007

International Labour Organization

Developed 4 websites for the regional ILO field offices within the ILO global website using the Stellent CMS (Java + Oracle).
Created Java components and Python scripts to automate the creation of new websites for the ILO field offices.
Installed and supported wiki and project collaboration tools for internal use tested.

Technologies: Java, Stellent CMS, Python, Oracle

PHP Specialist

2006 - 2007

IsoBar

Managed a team composed of 7 web developers.
Created a process for development cost estimation.
Created a process for issues management using Active Collab, an open source alternative to Basecamp.

Technologies: PHP, MySQL, PostgreSQL, Ubuntu Linux, Gentoo Linux

Project Manager

2006 - 2006

BrasilTelecom

Planned and monitored some of the department’s key projects including: Metro Ethernet, IP Traffic Analyzer, and video/audio conferences for corporate clients.

Technologies: PMBOK

Software Engineer

2005 - 2006

AgênciaClick/IsoBar

Participated on the successful development of 2 large information systems for the Brazilian government, entirely made in PHP and using Oracle and PostgreSQL as DBMS; being hosted by the Brazilian federal government and used by all of the ministries, government agencies, and the private companies willing to work with the government.
Automated the approval of the government marketing campaigns through the development of a Soap API used by government agencies, ministries, and private companies.
Managed the training for the Brazilian government data processing department (Serpro) which is responsible for the maintenance of the above mentioned system.
Developed a system used in a stand in Rock in Rio Lisbon—where users would take photos and they would be automatically posted to a website.
Executed Q&A on projects and fixed some of the company's projects.

Technologies: PHP, MySQL, PostgreSQL, Ubuntu

Web Developer

2004 - 2005

Fábrica de Idéias (fabricadeideias.com)

Developed a digital video recording and tagging system.
Participated on the development of a statistical database of all Brazilian municipalities, having the World Bank as a client.
Developed 2 websites using the company's home build CMS.

Technologies: Php, MySQL, Gentoo Linux, Shell Script, Perl

Web Developer

2003 - 2004

Agência de Notícias dos Direitos da Infância

Developed the NGO's website.
Developed the NGO's intranet portal.
Provided support for the CMS and intranet portal users.

Technologies: ASP, Microsoft SQL Server

Casa Rio Grande do Sul (Development)

http://www.casargs.com.br

Developed, hosted, and supported the Casa RGS website—a local company in Brazil specializing in home decor and wedding registries.

Clube de Vinhos GB (Development)

http://www.clubedevinhosgb.com.br

A wine club with a recurring payment solution for subscribed members using as payment methods: credit cards and Boleto (a common Brazilian payment option).

Quality Nutrition (Development)

http://www.qualitynutrition.com.br

A sports nutrition eCommerce website where I was responsible for the development of extensions regarding tax invoicing, payment, and shipping methods as well as hosting and support

International Labour Organization Offices' Websites (Development)

Developed several ILO office websites, using the Stellent CMS (Java + Oracle).

Timor Leste Republic Government Website Production Environment (Development)

http://timor-leste.gov.tl

Hired by the Timorese government as a consultant to improve the performance and security of the government’s website production environment (http://timor-leste.gov.tl).

Coritiba Store (Development)

The official eCommerce website for Coritiba—a soccer team competing in the Brazilian main league. The hosting structure was responsible for handling large traffic spikes whenever a new version of the team's jersey was available.

Edições CNBB (Development)

http://www.edicoescnbb.com.br

Conferência Nacional dos Bispos do Brasil (CNBB) is the Brazilian representative of the Vatican, and Edições CNBB is the company responsible for selling all of its editorial content to churches in Brazil. Responsible for the development and hosting of the website.

Floresta Flores (Development)

http://florestaflores.com.br

This is a flower shop website. I was responsible for payment and shipping method integrations, as well as hosting, and general support

AgênciaClick/IsoBar (Development)

As a PHP specialist, I worked as a team leader for the PHP development team; being responsible for Q&A and project management.

Tigo Money Official Magento Integration (via Toptal) (Development)

https://www.magentocommerce.com/magento-connect/tigo-money-payment-gateway-1.html

Developed the official integration for the payment method Tigo Money. The development involved checkout modifications and proper order status handling after the payment process has been completed.

Magento 2 Tutorial: How to Build a Complete Module (Publication)

https://www.toptal.com/magento/magento-2-tutorial-building-a-complete-module

Magento built a reputation as an e-commerce market leader, all thanks to its ease of use and customizability. Getting into the framework was only made easier with the release of Magento 2. In this post, Toptal Software Engineer Gabriel Queiroz Silva gives us a step-by-step tutorial to building your first Magento 2 website.

Languages

PHP, PHP 5, PHP 7, JavaScript, Python, Ruby, Java

Tools

PhpStorm, Magento Modules, Citrix Xencentre, Chef, Git, Nginx, Apache, Bitbucket, Subversion (SVN), GitLab, Docker Hub, Docker Compose

Paradigms

Agile Software Development, Prototype-based OOP, Continuous Delivery (CD)

Platforms

Magento 1, Magento API, Magento, Magento 2, Magento 2 Extension Development, Magento Community Edition, XenServer, Linux, Ubuntu Linux, Xen, Docker, New Relic

Frameworks

PHPUnit, Knockout.js, Prototype Framework, Zend Framework, Symfony, Hadoop, Apache Spark

Libraries/APIs

jQuery

Storage

MySQL, Redis, PostgreSQL

Other

Bacula, Ubuntu Server, Web Hosting, Client Management, DNS, Unix Shell Scripting

Bachelor's degree in Electrical Engineering

2002 - 2008

Universidade de Brasília - Brasília, DF, Brazil