* Maintenance of multilanguage, internal, real estate management website app.yuhu.io using Ruby and Rails, Javascript and React, Docker, PostgreSQL, Redis;* Maintenance of test suite using Minitest, FactoryBot, CircleCI;* External service integrations via REST APIs, SFTP, Dropbox Sign;* Feature toggle usage via LaunchDarkly;* Creation and maintenance of React components;* Implementation of quality of life features for developers.

* Maintenance of the e-learning website stoodi.com.br using Python, Django + PostgreSQL + Redis, Docker;* Development of serverless applications using AWS Lambda, DynamoDB, SQS and Elasticsearch;* Personal and technical management of other developers in the squad.

* Tech support and handling of support cases using JIRA, Postman, Ruby, SQL and Excel/Calc;* Development, automation and documentation of processes and solutions using Ruby, HTTParty, SQL and Confluence;* Development of new features and fixes in Rails applications.

* Maintenance of internal systems using Ruby and Rails;* Development of a suite of automated tests using Cucumber, RSpec and HTTParty, and Docker for deploying and running on a CI server using Jenkins;* Frontend development of a new Spring Boot system using React and Bootstrap and consuming APIs.

* Development and maintenance of the e-procurement site procurepro.com, using DigitalOcean, Rails + PostgreSQL + Elasticsearch, Sidekiq, Bootstrap + Haml + Sass, etc.;* Development and maintenance of web scraping bots using Mechanize to populate the website;* Incident management and general operation and support tasks;* Tech leadership using agile methodologies and concepts;* Test-driven development (TDD) using RSpec and Capybara;* i18n using standard Rails-provided tools;* Experimental development of REST API using Grape and Swagger UI;* Integration with legacy systems via APIs, cXML and webhooks;* Experimental usage of Git LFS.

* Development and maintenance of web based applications using Ruby on Rails with MySQL and/or integrated to SQL Server databases from legacy systems;* Development of web scraping bots using JRuby, Celerity and Mechanize;* Usage of BDD, development methodology that prioritizes writing automated tests before writing feature implementations, using Cucumber, Steak and RSpec;* Code versioning using Subversion (svn), Bazaar (bzr) or Git;* Development of deploy recipes using Capistrano;* Experimental usage of MongoDB, Sinatra and Haml/Sass in smaller projects.

* Frontend development of sections of websites `todaoferta.com.br` e `pagseguro.com.br`, using XHTML, CSS, JavaScript, meeting W3C specifications and Web 2.0 webstandards;* Usage of the jQuery library for page behavior effects, validations and AJAX calls;* Content development for mobile devices (cellphones, smartphones), including iPhone and iPod touch;* Code versioning using svn or bzr;* Usage of scrum methodology for project management.

* Frontend development of sections of the website `orolix.com.br`;* Layout cropping and slicing using Photoshop;* Usage of Linux virtual machines to install web applications, built via Ant or Maven;* Usage of a SVN code repository to retrieve and save project versions, including creating and merging branches;* Development of internal projects using Java Servlets and JSP, as part of a learning course taught by the company members.