Julio – React, JavaScript, Git

A company that helps improve education by focusing on the quality of interactions between teachers and students, using an observation tool to measure these interactions.

Julio was assigned to develop features for the company's certification system using React, TypeScript, Storybook, and RTL.

• Developed features for the company's certification system using React, TypeScript, Storybook, and RTL.
• Built UI components directly from Figma designs using Tailwind CSS, ensuring accessibility and responsiveness.
• Created and managed Jira tickets based on Figma designs, contributing to well-defined sprint scopes.
• Integrated RESTful APIs from a Ruby on Rails backend to support scalable front-end features.
• Collaborated with team members across Brazil, Argentina, the U.S., and India, working effectively in a distributed, multicultural team.
• Acted as a sprint support engineer, resolving production bugs and helping unblock teammates during critical phases of development.
• Created a Visual Studio Code extension to automate a translation workflow leveraging AI and Hugging Face.

#1 job site in the world, with over 250M unique visitors every month. It strives to put jobseekers first, giving them free access to search for jobs, post resumes, and research companies. The main features Julio was working on were:

• remediation guidelines suggested by WCAG standard;
• accessibility and compatibility with screen readers like Voice Over, JAWS, NVDA, and Talkback;
• accessibility of search box suggestions to screen readers on desktop and mobile devices;
• unit testing and software integration (met at least 80% of test coverage).

• Delivered WCAG 2.1 AA-compliant features for Indeed.com, enhancing accessibility and ensuring inclusive user experiences across all supported devices.
• Led an international team of 8 frontend engineers across LATAM and Europe, overseeing code quality, mentoring juniors, and driving delivery across multiple time zones.
• Built and maintained React + TypeScript components aligned with Indeed’s established design system and UI patterns, ensuring visual consistency and reusability.
• Raised frontend test coverage by 40% by introducing React Testing Library (RTL), Jest, and Cypress into the development workflow.
• Participated in sprint planning, code reviews, and performance optimizations to keep the product accessible, fast, and maintainable.
• Got promoted due to team expansion and performance.

One of the few direct marketing firms to offer creative design, consumer data, printing, fulfillment, analytic, and digital marketing solutions, all under one umbrella. It is located in New Jersey and offers custom solutions to monitor its client performance. The main features Julio was working on were:

• custom dashboards to monitor the call and click-to-call campaigns;
• custom workflows for data validation like Experian, Twilio, Google API;
• route calls to the Insurance companies accordingly with third-party APIs;
• React applications to generate high-quality leads and integrate them with partners in the Insurance industry.

• Developed and maintained React.js applications focused on performance, scalability, and lead conversion optimization.
• Designed and deployed marketing websites using Bootstrap, AWS EC2 instances hosted on S3, CloudFront, and SSL certificates, ensuring high availability and performance.
• Built advanced lead-generation tools integrating third-party services like Twilio (SMS), Leadspedia (lead routing), and email (Sendgrid), enabling automated multi-channel user engagement.
• Integrated the Google Maps API for address autofill and validation, streamlining form submissions and improving data quality.
• Collaborated with support teams across Spain, the Netherlands, and Israel to resolve production issues and deliver high-impact features.
• Reviewed the code and supported product decisions across the entire development lifecycle.
• Integrated front-end with Python-driven REST API.

The ad tech company with the leading real-time bidding platform for direct response marketing that enables advertisers to engage active buyers who are shopping on leading websites directly. At the same time, the platform helps publishers optimize the value of their website visitors by enabling publishers to manage and target the consumers shopping on their website directly. The company's growth has been recognized by the Inc. 500, the Deloitte Technology Fast 500, and the Los Angeles Business Journal.

• Led and managed processes and services related to Auto and Education web marketing, such as Incident Management, Problem Management, Project management, and others.
• Led the full software development lifecycle across three business units, coordinating efforts among 15 engineers, defining priorities, and ensuring on-time delivery.
• Maintained a solid working relationship with the account team, by communicating technical, political, and any other possible issues.