Sebastian Castro is a seasoned entrepreneur and CEO with over 15 years of hands-on experience building and scaling internet businesses, and more than two decades in the digital space. He has founded and led multiple ventures—from a high-traffic Spanish greeting card site that grew to 100K daily visitors and was acquired, to marketing and real-estate ventures—demonstrating strength in product-market fit and exit execution. As current CEO of Backbone Ventures, he blends executive leadership with technical fluency, having contributed to open-source Rails projects by improving JSON API support and test coverage. Based in the United States and trained in computer science, Sebastian combines operator instincts with a developer’s attention to detail, often stepping into code-level improvements that smooth integrations and APIs.
15 years of coding experience
12 years of employment as a software developer
Computer Science, Information Tecnologies, Computer Science, Information Tecnologies at Universidad Abierta Interamericana
Contributions summary:Sebastian primarily focused on adding JSON support to various controllers within the Ruby on Rails CRM platform. This involved modifying the `AccountsController`, `ApplicationController`, `CampaignsController`, `CommentsController`, `ContactsController`, `EmailsController`, `HomeController`, `LeadsController`, `OpportunitiesController`, `TasksController`, and `UsersController` to include JSON responses. Additionally, the user removed redundant `as_json` and `to_xml` calls, indicating a good understanding of Rails' default behavior. Finally, the user added specs for JSON responses in several controller spec files.
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Sebastian Castro - Chief Executive Officer at Backbone Ventures