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Diego Ballona

Diego Ballona

Belo Horizonte - State of Minas Gerais, Brazil
Member since January 18, 2014
Diego is an entrepreneur, software engineer, and technology enthusiast. Over the past 7 years, he has worked in marketing, software architecture, systems administration, software engineering, front-end engineering, and product development.
Diego is now available for hire
  • JavaScript, 8 years
  • Ruby on Rails (RoR), 5 years
  • Ruby, 5 years
  • Test-driven Development (TDD), 4 years
  • SaaS, 4 years
  • Shell, 4 years
  • Redis, 3 years
  • Sass, 3 years
Belo Horizonte - State of Minas Gerais, Brazil
Preferred Environment
OS X, Terminal, Git
The most amazing...
...thing I've created is a learning management system that allows users to choose the best learning path based on their abilities.
  • CTO, Partner
    NDA2 (
    2012 - PRESENT
    • Built a learning management system from scratch.
    • Architected the software and created standards focusing on healthy growth.
    • Managed teams with various skills such as engineering, design, product, marketing, etc.
    • Wrote video converting and versioning background tasks similar to the strategy employed by big players on the video encoding market.
    • Collaborated on products, services, and project sales modeling.
    Technologies: Ruby, Rails, Node.js, Ember.js, AngularJS, Shell Script, HTML5, CSS3, PostgreSQL, MySQL, MongoDB
  • Software Engineer
    Viaweb (
    2010 - 2012
    • Built a website for the biggest Christian school network in Latin America (Salesians).
    • Handled website development for 20+ clients.
    • Led the IT team. Was accountable for recruitment, team responsibilities, and team management.
    • Implemented Cloud IT infrastructure.
    • Made a 30 second video contest that had 700k+ hits in one month.
    Technologies: Ruby on Rails, PHP, Postgres, MySQL, HTML5, CSS3, OO JavaScript, Shell Script
  • NDA2 Learning Management System (Development)

    I developed learning objectives and technical prerequisites. I was also responsible for team management and product development.

  • Languages
    Sass, CSS3, Ruby, HTML5, XML, JavaScript, SQL, JRuby, Bash Script, CoffeeScript, PHP, Haml
  • Frameworks
    minitest, Ruby on Rails (RoR), Selenium, Zend Framework, Ember.js
  • Libraries/APIs
    YouTube API, jQuery, Lucene, Facebook API
  • Tools
    Shell, RSpec, Cucumber, Nginx, Sublime Text, Bower, Grunt, Ansible, Vim Text Editor, Adobe Illustrator, Adobe Photoshop
  • Paradigms
    REST, Test-driven Development (TDD), Object-oriented Design (OOD), Class-based OOP, DevOps, UX Design, Kanban, Design Patterns, Scrum, Event-driven Programming, Behavior-driven Development (BDD), Asynchronous Programming, Iterative programming, Search Engine Optimization (SEO), Web Design, Agile Software Development
  • Platforms
    Linux RHEL/CentOS, Red Hat Linux, CentOS, Mac OS, Android, Amazon Web Services (AWS), iOS, WordPress
  • Storage
    JSON, Redis, Data Integration, AWS S3, Database Modeling, MySQL, NoSQL, MongoDB, Sphinx Search Engine, Database Performance, PostgreSQL
  • Misc
    AJAX, Elasticsearch, SaaS, System Administration, RESTful Web Services, Product Management, Product Development, Sales, API Integration, API Design, Scraping, Lean Development, Information Architecture (IA), User Experience (UX), Design, Business Intelligence (BI), SEM, Security, Product Support, Interaction Design (IxD)
  • Incomplete degree in Information Systems
    Centro Universitário UniBH - Belo Horizonte
    2010 - 2011
  • Incomplete degree in Management
    Centro Universitário FUMEC - Belo Horizonte
    2009 - 2010
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