Carlos Ramirez III
Verified Expert in Engineering
Full-stack Developer
San Rafael, CA, United States
Toptal member since December 6, 2014
Carlos is a professional software engineer and full-stack web developer specializing in the Ruby on Rails framework. He has worked with tech companies for over a decade, helping to build technology-based businesses from the ground up. He has a bachelor's degree in computer science from Williams College.
Portfolio
Experience
- Test-driven Development (TDD) - 12 years
- JavaScript - 12 years
- Ruby on Rails (RoR) - 12 years
- Heroku - 12 years
- Full-stack - 12 years
- Ruby - 12 years
- RSpec - 12 years
- Bootstrap - 10 years
Availability
Preferred Environment
Git, Vim Text Editor
The most amazing...
...thing I’ve developed recently is a livestreaming product to allow video production companies to continue shooting remotely during the COVID-19 pandemic.
Work Experience
Web Developer
HealthSherpa
- Worked as part of a team consisting of 3 other engineers, an engineering manager, and a product manager using Agile methodologies.
- Built an integration with a third-party identity verification solution to ensure that agents on the platform are verified and no fraudulent user accounts are created.
- Migrated from a legacy single-role-per-user system to a multi-role permission-based authorization system.
Web Developer
Standard International Management, LLC (Contract)
- Implemented a site-wide redesign and front-end overhaul targeting both desktop and mobile devices. Incorporated responsive image best practices to maximize performance and page speed ranking for SEO.
- Enhanced the CMS to allow new page types to be created, including a careers portal for job listings, promotional campaign landing pages, and a radio page with the embedded player.
- Enabled multi-language support for both static and user-generated content coming from the CMS using i18n localization.
- Built a Shopify store using a customized theme to ensure cohesive branding between the shop and the main hotel website.
- Performed maintenance, performance tuning, and code refactoring to improve the quality of the codebase.
Lead Web Developer
BiG Media (Contract)
- Created a live streaming product allowing video production companies to shoot remotely during the COVID-19 pandemic. Delivered collaboration tools, supported multi-camera shoots, and addressed latency challenges using multiple streaming protocols.
- Designed and implemented an industry-specific product for digitally signing, storing, and managing contracts for video production companies. Supported both web browser and iOS clients using an internal API using JSON:API specification.
- Built an AI-powered tool for detecting and confirming the presence of faces and other data in a piece of video footage. Used this data to dynamically generate Excel reports used by the industry for compliance and reporting.
- Managed a team of internationally-located freelance developers. Responsible for code reviews, feature scoping, and project management.
Web Developer
Nafasi (Contract)
- 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.
Lead Web Developer, CTO
eDivv, Inc. (Contract)
- Implemented an online marketplace and bartering platform for trading beauty products.
- Provided 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.
Web Developer
Curated (Contract)
- 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 webhooks 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 a legacy REST API's next-generation (v2) with updated conventions, best practices, and code improvements.
Web Developer
Buster, Inc. (Contract)
- Helped launch a fully redesigned second generation of this product over three months.
- Created a custom, rules-based engine for scheduling and sending customer leads to qualified vendors within the system to maximize profit.
- Implemented custom front-end designs and user experience flows using SASS/CSS and JavaScript.
Lead Web Developer
Map-tac LLC (Contract)
- Designed and built a custom itinerary building tool and marketplace for travel professionals and clients.
- Created a custom search algorithm for indexing and finding tours based on user criteria using Elasticsearch.
- Integrated dozens of third-party data feed on suppliers, normalizing the data to allow the search engine user experience to be consistent regardless of the content's source.
- 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.
Lead Web Developer
Affirmify, LLC (Contract)
- Designed and implemented a response management software-as-a-service system for HR professionals.
- Created a custom Wufoo-style form builder using JavaScript.
- Implemented a custom-designed user interface using Object-Oriented CSS principles.
- Built a multi-tenant account system with custom subdomains for each subscriber.
Senior Software Engineer
Total Computer Software
- 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, emphasizing interoperability, distributability, and security.
- Created 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.
- Asked to be a guest speaker at the EMEA international public safety conference in Barcelona, Spain, for an audience of over eighty people to discuss cloud computing.
- Invited to collaborate with project managers and developers to improve and test software for the .NET 4.0 framework at the Microsoft Technology Centers in San Francisco and New York City.
Experience
The Standard Hotel
https://www.standardhotels.comME Suite (BIG Media)
Tripwing
Buster
https://www.buster.comCurated
https://curated.coeDivv
Affirmify
Nafasi
Education
Bachelor's Degree in Computer Science
Williams College - Williamstown, MA
Skills
Libraries/APIs
REST APIs, Ruby on Rails API, Vue, TensorFlow, Yahoo! API, jQuery, Segment.io, Stripe, Ruby Page Object, Chargify, Google Maps, React, Facebook API, GitHub API
Tools
Basecamp, Trello, Cluster, RSpec, Zapier, Bitbucket, GitHub, Git, Slack, Vim Text Editor, Pivotal Tracker, Sublime Text, Campfire, Solr, VirtualBox, Vagrant, Asana, Mailchimp
Languages
Sass, SCSS, HTML5, Ruby, PHP, HTML, JavaScript, Haml, CoffeeScript, SQL, CSS
Frameworks
Bootstrap, Bootstrap 3, Slim, Ruby on Rails (RoR), minitest, .NET, Capybara, ZURB Foundation, Redux
Paradigms
Unit Testing, Plain Old Ruby Object (PORO), Object-oriented Programming (OOP), Test-driven Development (TDD), Agile Software Development, REST, Responsive, Model View Controller (MVC), OOCSS, Functional Programming, Agile
Platforms
Mixpanel, Heroku, WordPress, Amazon Web Services (AWS), MacOS, X (formerly Twitter), Algolia, Mandrill
Storage
JSON, Elasticsearch, SQLite, Media Queries, PostgreSQL, MySQL, MongoDB
Other
Product Development, Back-end Development, Minimum Viable Product (MVP), Front-end, Technical Project Management, Lean Startups, Full-stack, User Interface (UI), Front-end Development, Software Engineering, User Experience (UX), Web Development, Full-stack Development, Webhooks, APIs, Team Mentoring, Ajax, Stamps
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring