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Rafael S.
Front-end UX Engineer

Cascading Style Sheets
Next.js
Apollo Graphql
Typescript
Github
Html
Javascript
Python
Angular
React
Bio

Web Application Developer specializing in front-end development since 2015, adept in technologies such as JavaScript, React, CSS, HTML, Next.js, TypeScript, GraphQL, Styled-components, Redux, and Git. Focused on constructing site layouts and systems, with experience in both consuming and contributing to API development. While briefly experienced in back-end development using Node.js, maintains a primary focus on front-end development, particularly in areas such as performance optimization, accessibility enhancements, animations implementation, and testing strategies.

  • Internship - Front-End Developer
    12/2/2014 - 2/2/2015

    Developed high-quality web layouts using HTML, CSS, and JavaScript. Gained expertise in ensuring responsive design across various devices using CSS media queries and frameworks like Bootstrap. Utilized JavaScript for dynamic content and interactivity, incorporating libraries and frameworks such as jQuery and React.js. Implemented cross-browser compatibility and performed thorough testing to ensure functionality across major web browsers. Enhanced user experience through optimized performance and adherence to best practices in front-end development.

  • Front-End Developer
    12/1/2021 - 12/1/2023

    Worked on developing an electronic medical record system and created a comprehensive system for patient use, enabling access to tests, prescriptions, and appointment scheduling with partner laboratories. Ensured patients could also purchase medications conveniently. Developed proficiency in ReactJS, Typescript, Redux, Jotai, SWR, and styled-components. Focused on unit testing and form management using Jest and react-hook-form. Integrated continuous integration and deployment pipelines using Jenkins and Docker. Emphasized accessibility and maintained an agile development process following SCRUM methodologies.

  • Front-End Developer
    5/1/2021 - 12/1/2021

    Contributed as a developer in the Conversion Rate Optimization (CRO) domain, executing A/B tests for prominent Brazilian marketplaces. Utilized tools such as Google Optimize, Google Analytics, Google Data Studio, and Firebase Remote Config. Developed and implemented Vanilla JS code for optimizing user experiences and enhancing conversion rates.

  • Front-End Developer
    10/1/2019 - 4/1/2021

    Developed the new version of the CDP, utilizing React, TypeScript, GraphQL, Redux, Styled-components, and Storybook. Participated in a project for a real estate rental platform, developed with Next.js. Acquired proficiency in modern JavaScript frameworks and libraries. Enhanced skills in state management and component styling. Strengthened the ability to construct scalable and maintainable codebases. Contributed to dynamic UI development and robust data-fetching mechanisms.

  • Front-End Developer
    7/2/2018 - 9/1/2019

    Led the development of a front-end cashier system, gaining expertise in JavaScript, HTML, and CSS. Utilized frameworks such as React and Angular to create a user-friendly interface. Incorporated state management tools like Redux to ensure efficient data flow. Employed RESTful APIs to facilitate seamless communication between the front end and back end. Enhanced user experience with responsive design principles and Bootstrap. Implemented automated testing with Jest and Selenium to ensure code reliability. Leveraged Git for version control, enabling collaborative development and streamlined updates.

  • Front-End Developer
    5/2/2015 - 6/2/2018

    Gained extensive experience in website development, specializing in the use of HTML, CSS, JavaScript, and PHP. Developed and maintained dynamic, responsive websites using frameworks such as Laravel and Angular. Implemented front-end designs with a focus on usability and accessibility through Bootstrap and jQuery. Gained proficiency in managing and optimizing content management systems (CMS) including WordPress and Joomla.

    Demonstrated technical expertise in server-side scripting, database management, and integrating APIs to enhance website functionality. Utilized MySQL and PostgreSQL for database management, ensuring efficient data retrieval and storage solutions. Employed version control systems such as Git for collaborative code maintenance and project tracking.

    Developed automated and manual systems to streamline operational workflows and enhance overall productivity. Ensured system security and performance through routine maintenance, updates, and optimization techniques. Built robust e-commerce platforms with secure payment gateways, employing WooCommerce and Shopify to create seamless user experiences.

    Designed and implemented email marketing campaigns, focusing on segmentation, personalization, and automation to increase engagement and conversion rates. Utilized tools such as Mailchimp and SendGrid to manage and send newsletters, tracking performance metrics to refine strategies. Created visually appealing and mobile-friendly email templates that align with branding guidelines, employing HTML and CSS to ensure consistent rendering across different email clients and devices.

  • Analysis and Development of Systems at Senac College Porto Alegre
    2015 - 2022

  • Web Programming at Pro-University Institute of Canoas
    2013 - 2014

Rafael is available for hire

Meet Rafael S.
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