Carlos is a senior full-stack web and software developer with over a decade of experience developing robust and fully functional web applications, consistently meeting and exceeding goals and objectives. He specializes in Ruby, Ruby on Rails, PostgreSQL, React.js, and GraphQL, having hands-on experience in designing, developing, testing, maintaining, and debugging software for millions of users.
Creating and developing innovative software solutions for clients across a broad range of industries.
Participating in scrums consisting of cross-functional teams, both software and hardware.
Ensuring that features are being delivered efficiently and on time.
Researched and implemented the platform’s dependency resolution algorithm based on PubGrub.
Implemented front-end and back-end features on the platform.
Helped with open-source initiatives like gemcompat.
Contributed to hiring and onboarding new team members and mentored a junior engineer.
Led the post-funding engineering team.
Developed technical solutions to problems faced by post-funding team members.
Implemented, deployed, and trained the team on the new tools created.
Architected and built the next generation of the company's main system.
Coordinated the mobile and desktop app integration and worked with VPN servers and Experian to protect personal information.
Worked on an open-source Rails GraphQL project offered to a client.
Boosted fulfillment on Diplomatic Security Service accounts in record time.
Worked on a one-to-many integration with applicant tracking systems.
Provided the proper tools to sync information on both ends for companies to run their hiring processes seamlessly.
Managing a boutique web development firm with 27 international clients (including 7 long-term engagements) and a distributed team of 7.
Delivering high-quality solutions while managing complexities of remote work like recruitment, training, evaluation, goal-setting, coaching, and contract termination.
Engaged in customer acquisition from both word-of-mouth and direct contact from freelance networks.
Built a prototype Rails application from scratch to manage home sales negotiations.
Worked directly with the CEO to turn requirements into features.
Provided estimates and guidance about best practices.
Developed an indie mobile game from scratch for a US-based company.
Delivered error-free coding for custom physics dynamics and interactions with objects.
Led the design initiatives and created minor animations, building a basic user interface to show game results.
Developed complex websites/systems for startups, managing tasks with Scrum.
Created a SDK for an application that applies assessments to users.
Delivered advanced recommendations with high performance and multiple live triggers.
Developed comprehensive web systems using Ruby on Rails to manage cargo trains in Italy.
Improved the application's overall performance and created new reports with custom data visualizations.
Updated legacy code to improve readability/quality and proposed interface changes for a better user experience.
Developed and maintained the company's key systems and suggested improvements for both the front and back end.
Successfully migrated reports from a legacy application to a new one.
Transferred complex queries to the PHP application via the Oracle database.
Led software development initiatives and built complex frameworks to assist in the development efforts.
Developed applications for external clients and created tools to assist in purchasing efforts.
Led the planning, requirements, presentations, scheduling, training, and user support efforts.
Developed websites and systems for clients, advising on projects regarding user experiences and best practices.
Created layouts and interfaces for unique web applications.
Built an advanced framework and tool to streamline and manage the company's communication processes.
Analyzed and developed complex solutions to the Telefonica online account tool.
Created a batch process to provide online billing processes.
Ensured the availability of bills, manually processing data when required.
Developed and maintained high-level PHP applications.
Manipulated databases to effectively meet application needs.
Led project planning efforts, analyzing difficulty levels and time to complete tasks.
Created website layouts and 3D images for advertising and event planning.
Coded systems to manage website content and created/maintained databases.
Delivered advanced training to customers after project completion.
Led the coding efforts for the company's website as well as websites for local game servers.
Created high-level visual arts for the company's advertising initiatives.
Played a key role in building the company's management system and created/maintained databases.
Led development efforts for a RoR application with both server-side API and client-side Angular and Bulma application. Managed administrative panel, secondary application, and infrastructure setup for production and staging.
Conducted creation of an SDK for the secondary application and worked with queue tools.
Set up AWS and Heroku environments, utilizing technologies such as Ruby, Ruby on Rails, AWS, Heroku, HTML, CSS, JavaScript.
Led development efforts for a large Ruby on Rails application, managing vast amounts of daily data with near instantaneous response times.
Significantly improved graphical performance, achieving increased loading speeds.
Created new features and reports, refined legacy code, and enhanced performance in multiple areas using Ruby, Ruby on Rails, and PostgreSQL.
Developed a Ruby gem to enhance Rails Active Record using PostgreSQL, handling tasks like DISTINCT ON SQL command.
Transferred the DISTINCT ON SQL command to the Relation method while managing complex issues including composite data types.
Used technologies include Ruby, Ruby on Rails, and PostgreSQL.
Utilized Ruby on Rails and Bootstrap for web development
Creation of an administrative panel within the website
Developed multiple tools within the website for diverse project applications
