Gustavo H. Mascarenhas Machado

Software Engineer - Berlin, Germany

[email protected]

Who am I?

I'm a Software Engineer with 13 years of experience, focused on building scalable, efficient and business aligned web applications and on maintaining and modernizing legacy systems.

General experience:

  • Real world experience in large scale applications written in many different programming languages and database technologies
  • Well versed in Linux & cloud systems administration
  • Hands-on experience on conversion optimization and user experience (UX)
  • MBA focused on Business Intelligence
  • Background in Biomedical Sciences (Bachelor)
  • Knowledge of English, French, German, Portuguese and Spanish


Sourceability LLC (2020 - current)

Senior Software Engineer

  • I work on the e-commerce platform, including reverse engineering and migrating legacy applications; planning, implementing and maintaining high-performance APIs, and producing high-value business deliverables.
  • Tech stack: PHP7 & PHP8, Symfony 4/5/6, Microservices, Kubernetes, AWS, Docker, PostgreSQL, Redis, RabbitMQ, et cetera.

FlixBus (2018 - 2020)

Software Engineer, API & Partner Integrations

  • I supported our internal and external customers integrating with our APIs.
  • I wrote and maintained the documentation of our public facing APIs.
  • I worked on developing an API Management Platform using cutting-edge technologies.
  • Tech stack: Kubernetes, AWS (various services), AWS API Gateway, Kong, OpenAPI Specs, Docker, PHP7, Symfony 3/4, PostgreSQL, MySQL, Terraform, Prometheus, Grafana, et cetera.

Global Supps LLC (2016 – 2018)

Software Engineer

  • I designed, implemented and deployed software products that generate millions of dollars in revenue.
  • I coordinated third-party contractors to deliver timely, business-tailored and on budget solutions.
  • I devised conversion optimization strategies through data-centric approaches that resulted in increased revenue.
  • Tech stack: PHP7, Symfony 3/4, MySQL, PostgreSQL, Redis, Ruby, Wordpress, WooCommerce, Ansible, Capistrano, SASS/SCSS, HTML, Javascript, Vue.js, Scala, Play Framework, Beanstalkd, Linux, AWS.

Independent Consultant (2010 – 2018)

Software Engineer

  • I implemented new features on an e-commerce website that brought down response times by 50% and increased revenue by 200%.
  • I improved legacy applications, making them safer, more reliable and easier to maintain.
  • I fixed broken and partially implemented applications, making them functional again.
  • I devised new business strategies that brought more revenue and delivered better - and measurable - results to an e-commerce business.
  • I advised multiple business on hiring decisions, evaluated new projects and third-party proposals and supervised projects executed by contractors.
  • Tech stack: PHP7, Symfony 3/4, MySQL, Redis, Magento, Wordpress, WooCommerce, Linux, AWS.

EBANX Ltd. (2013 – 2015)

Integration Manager (2014 - 2015)

  • I effectively managed the Integration Team, delivering impressive results with the company's smallest team.
  • I coordinated the development of new integration solutions, which allowed new customers to integrate with our systems and which increased the company's revenue.
  • I assisted our Sales team during business negotiations by selling the technical aspects of our product and helping close multimillion-dollar contracts.
  • Tech stack: PHP5 & PHP7, Ruby, Ruby on Rails, Magento, MySQL, WooCommerce, Linux, AWS.

Integration Specialist (2013 - 2014)

  • I assisted our customers to solve technical issues, decreasing ticket response times and improving customer satisfaction.
  • I implemented new integration methods that decreased the integration time from many days to less than an hour.
  • Tech stack: PHP5 & PHP7, Ruby, Ruby on Rails, Magento, MySQL, WooCommerce, Linux, AWS.

Meta IT Services (2013 – 2013)

Developer Analyst

  • I modernized and documented several modules from a legacy ERP through reverse engineering.
  • I created a new standard user interface that improved the user experience substantially.
  • I wrote a guide on optimization for the PostgreSQL database that was used by the entire team.
  • Tech stack: PHP5, PostgreSQL

Tradincom Ltda. (2011 – 2013)

Software Engineer/Partner

  • I developed a business-oriented social network focused on the agricultural commodities market
  • I built a tool for trading agricultural commodities online (undisclosed)
  • Tech stack: PHP5, MySQL, Zend Framework, Ruby, Ruby on Rails

Cripon (2010 – 2011)


  • I developed, customized and sold a group buying software which was used by hundreds of brazilian websites.

Embrapa Florestas (2010 – 2010)


VALVe Corporation (2006 – 2008)

Support Wiki Translator


MBA - Business Intelligence (2016 - 2017)

Universidade Positivo

Bachelor of Information Systems (2013 - 2016)

Universidade Tecnológica Federal do Paraná

CORe - Credential of Readiness (2015 - 2015)

HBX | Harvard Business School

Bachelor of Computer Engineering (2011 - 2013)

Universidade Tecnológica Federal do Paraná

Bachelor of Biomedical Sciences (2007 - 2010)

Faculdades Pequeno Príncipe