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Carlos Ramirez III

Carlos Ramirez III

New York, NY, United States
Member since October 29, 2014
Carlos is a professional software engineer and web developer specializing in the Ruby on Rails framework. He has worked with tech companies in New York's Silicon Alley for over five years, helping to build technology-based businesses from the ground up. He has a Bachelor's degree in Computer Science from Williams College and has been in the software industry for nearly ten years.
Carlos is now available for hire
  • Back-end Development, 8 years
  • Ruby on Rails (RoR), 6 years
  • Test-driven Development (TDD), 6 years
  • Ruby, 6 years
  • JavaScript, 6 years
  • RSpec, 6 years
  • Heroku, 6 years
New York, NY, United States
Preferred Environment
Custom cloud dev environment, Vim text editor, Git
The most amazing...
...thing I've built recently is a custom Zapier app with web hooks and a REST API to allow the integration of a new software service with hundreds of others.
  • Web Developer
    Standard International Management, LLC (via Toptal)
    2016 - PRESENT
    • Implemented a system for creating promotional campaign landing pages from the CMS.
    • Created a careers portal for creating and publicizing open positions at the company.
    • Performance tuned the home page from the database through the front-end to increase overall loading speed.
    • Revamped the visual design of the spa section of the Miami property.
    • Performed maintenance and code refactoring to improve the quality of the codebase.
    • Implemented several landing pages for other non-hotel initiatives.
    Technologies: Ruby on Rails, PostgreSQL, Haml, RSpec, Capybara, Heroku
  • Technology & Business Consultant
    The Capital Web LLC (via Toptal)
    2016 - 2016
    • Performed a high-level evaluation of the business and product.
    • Offered advice and guidance on which features to consider building based on the relative costs/benefits, timelines, etc.
    • Provided recommendations on useful tools and services to help achieve business and product goals.
    • Discussed startup business strategy.
    Technologies: Ruby on Rails, Heroku, Rspec, Capybara
  • Web Developer
    Nafasi (via Toptal)
    2015 - 2016
    • Completely redesigned the visual user interface using a custom Twitter Bootstrap theme.
    • Designed a LinkedIn-like profile page with in-place editing and updating using AJAX and server-side rendered templates.
    • Implemented a downloadable custom PDF report using HTML-to-PDF rendering techniques to ensure proper formatting and layout of the final document.
    • Instituted an automating testing policy and implemented a complete integration test suite to provide full coverage of new features.
    • Added analytics tracking to the web application using Segment, Mixpanel, and Google Analytics.
    • Used modern methods of social engagement such as commenting, up/down voting, etc. to allow users to engage and collaborate on application-specific items.
    Technologies: Ruby on Rails, Heroku, PostgreSQL, Twitter Bootstrap, Rspec, Capybara
  • Web Developer, CTO
    eDivv, Inc. (Contract)
    2013 - 2016
    • Implemented an online marketplace and bartering platform for trading beauty products.
    • Provided post-development technical leadership to the executive and development team, including reviewing code, generating business flows and wireframes, and other consultation services.
    • Identified performance bottlenecks and opportunities for optimization on the Heroku hosting platform.
    Technologies: Ruby on Rails, PostgreSQL, Heroku, Sass, jQuery, Stripe, Twitter Bootstrap, Algolia,, USPS
  • Web Developer
    Curated (via Toptal)
    2015 - 2015
    • Built a custom Zapier app with triggers and actions specific to the Curated software service to allow integration with hundreds of other Zapier-supported software services.
    • Created a system for triggering and subscribing to web hooks for various application events.
    • Implemented time-based, recurring, and event-triggered transactional emails containing summary reports and user-action reminders.
    • Optimized the performance of click- and open-rate statistics reports using counter caches and denormalized tables rather than ad-hoc SQL queries.
    • Implemented the next-generation (v2) of a legacy REST API with updated conventions, best practices, and code improvements.
    Technologies: Ruby on Rails, Zapier, Mandrill, PostgreSQL, REST API
  • Web Developer
    Buster, Inc. (Contract)
    2015 - 2015
    • Helped launch a fully redesigned second generation of this product over a three-month period.
    • Created a custom, rules-based engine for scheduling and sending customer leads to qualified vendors within the system in order to maximize profit.
    • Implemented custom front-end designs and user experience flows using SASS/CSS and JavaScript.
    Technologies: Ruby on Rails, JavaScript, Sass, Heroku
  • Web Developer
    Map-tac LLC (Contract)
    2013 - 2015
    • Designed and built a custom itinerary building tool and marketplace for travel professionals and their clients.
    • Created a custom search algorithm for indexing and finding tours based on user criteria using Elasticsearch.
    • Developed a custom tagging tool for marking trip destinations using Yahoo!'s GeoPlanet API.
    • Built a white-labeled search engine front-end featuring fully data-driven theming, branding, and content curation.
    • Integrated dozens of third-party data feeds from suppliers, normalizing the data to allow the search engine user experience to be consistent regardless of the content's source.
    Technologies: Ruby on Rails, PostgreSQL, Elasticsearch, Heroku, Sass, CoffeeScript, jQuery, Google Maps
  • Web Developer
    Affirmify, LLC (Contract)
    2011 - 2012
    • Designed and implemented a response management software-as-a-service system for HR professionals.
    • Created a custom Wufoo-style form builder using JavaScript.
    • Built a multi-tenant account system with custom subdomains for each subscriber.
    • Implemented a subscription-based payment model using Chargify.
    Technologies: Ruby on Rails, PostgreSQL, Heroku, Sass, jQuery, Chargify
  • Senior Software Engineer
    Total Computer Software
    2008 - 2011
    • Designed and implemented a system-wide data searching algorithm and accompanying user interface.
    • Architected and implemented an inter-agency data sharing system using C#, the .NET framework, and Windows Communication Foundation with an emphasis on interoperability, distributability, and security.
    • Designed and implemented a mapping system integrated with ESRI ArcGIS web services to display maps, locate addresses, and retrieve geo-data.
    • Discovered and corrected architectural design flaws to improve program efficiency and performance.
    • Maintained a data-driven user interface validation system to enforce good data input.
    • Handled user interface development using Windows Presentation Foundation.
    Technologies: .NET
  • The Standard Hotel (Development)

    Content management system (CMS) for a national boutique hotel with properties in NY, Miami, and LA.

  • Curated (Development)

    A software-as-a-service platform for creating, managing, and sending beautifully curated newsletters.

  • Nafasi (Development)

    A platform to facilitate engagement, collaboration, and discovery between innovators and talented job seekers.

  • Buster (Development)

    An Uber-style marketplace for group transportation. Allows consumers to book limos, buses, vans, etc., and provides back-office tools for transportation providers to manage inventory, accept bookings, and charge customers.

  • eDivv (Development)

    An online marketplace for trading beauty products.

  • Affirmify (Development)

    A response management system for HR professionals.

  • Tripwing (Development)

    An itinerary builder and online marketplace for travel professionals and their clients.

  • Keep Calm And Transition To A New Development Team (Publication)
    Many product owners don’t have a technical background and thus often find themselves unprepared and scrambling when it comes time to bring on a new development team. This often results in hindered progress, wasted time, and frustration for everyone involved. If this sounds like it could be you, either now or in the future, then you should be somewhat concerned. In this blog post, Toptal Freelance Software Engineer Carlos Ramirez III will walk you through the various steps of a typical transition process in project management so you can prepare for this eventuality and make the transition as smooth as possible.
  • How to Use Rails Helpers: A Bootstrap Carousel Demonstration (Publication)
    One of the most misused, misunderstood, and neglected of all the Rails built-in structures is the view helper. Helpers often get a bad reputation for being a dumping ground for one-off methods used across the entire application's view layer. But what if your helpers could be more semantic, better organized, and even reusable across projects? What if they could be more than just one-off functions sprinkled throughout the view, but powerful methods that generated complex markup with ease leaving your views free of conditional logic and code? Let's see how to do this when building an image carousel, with the familiar Twitter Bootstrap framework and some good old-fashioned object-oriented programming.
  • Languages
    SCSS, HTML5, Ruby, Sass, CoffeeScript, JavaScript, SQL, CSS, Haml
  • Frameworks
    Slim, Ruby on Rails (RoR), minitest, Bootstrap, Bootstrap 3, ZURB Foundation
  • Libraries/APIs
    REST API, Ruby on Rails API, jQuery, Yahoo! API, Ruby Page Object, Chargify, Stripe, API,, React.js, GitHub API, Facebook API
  • Tools
    Cluster, RSpec, Zapier, GitHub, Git, Trello, Slack, Bitbucket, Basecamp, Pivotal Tracker, Campfire, Sublime Text, Vim Text Editor, VirtualBox, Vagrant, Solr, Asana, MailChimp
  • Paradigms
    Minimum Viable Product, Plain Old Ruby Object (PORO), Object-oriented Programming (OOP), Test-driven Development (TDD), Unit Testing, Model View Controller (MVC), Agile Software Development, REST, Functional Programming
  • Platforms
    Mixpanel, Heroku, Mac OS, Amazon Web Services (AWS), Mandrill
  • Storage
    JSON, SQLite, Media Queries, MongoDB, PostgreSQL, MySQL
  • Misc
    Back-end Development, Front-end, Technical Project Management, Product Development, Lean Startups, AJAX, Elasticsearch, Responsive Web Apps, Team Mentoring, Webhook
  • Bachelor's degree in Computer Science
    Williams College - Williamstown, MA
    2004 - 2008
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