Ricardo S. Yasuda

Engineering Manager for multiple teams (Logistics, Partners, Pricing, Billing) in multiple tribes (Acquisition, Growth, Online Payments).

Engineering Manager for the Telecom team, handling connectivity for card readers worldwide.

Tech Lead of Terminals team, handling financial transactions from card readers, using Elixir and Erlang.

Extended the core system to support different kinds of fitness clubs featuring advanced scheduling functionalities.
Improved the integration between the access control system with physical barriers, with biometric authentication.
Acted on Smart Fit expansion in Latin America.

Adtech specialized in automating and optimizing ad placements in Facebook Ads platform. Acted as Full stack web developer using Ruby, Sinatra, AngularJS. Integration with Facebook Ads APIs.

Expanded Smart Fit from 3 locations to over 1000, in Brazil and Latin America, building country-specific solutions.

Built the core of the service that handled every aspect of a fitness club management: subscription management, billing, invoicing, customer management, access control, reconciliation, including integration with ERPs, banks, payment gateways and invoice printers.

Developed the in-house CMS with Ruby on Rails, used to build several projects for clients, including personal and business websites, and e-commerce sites.

Responsible for the IT team, managing internal network and inventory, while still being able to work on projects as a developer.

Backend development for internal projects and for clients like Petrobras and Hospital São Camilo, using Ruby and PHP

Backend development for internal projects, using PHP