Software Engineer Senior

Keiver Hernandez ******@*****.*** • +1-786-***-****

Senior Software Engineer https://keiver.dev • Miami, 33165 1

Senior Software Engineer with 13+ years of experience designing and optimizing web applications. Passionate about creating accessible, responsive, and SEO-friendly applications with a proven ability to increase application performance and user experience. Latest toolset includes JavaScript, TypeScript, HTML5, CSS3, SCSS, SASS, React, Vue.js, Next.js, Angular, Node.js, Redux, Zustand, Vuex, Tailwind, React Native, Expo, Cypress, Apollo, Gatsby.js, MongoDB, MySQL, PostgreSQL, Redis, Less, Go, Python, PHP, C++, C#, .Net, Cloud Computing, Serverless Functions, Microservices Architecture and Micro-frontends, Jenkins, TDD, BDD, GraphQL, API Integration, YAML, Kubernetes, Podman, Docker, Server Side Rendering(SSR), Responsive Design, User Accessibility (WCAG), Internationalization (i18n).

EXPERIENCE

Senior Frontend Developer • Mar 2024 – Oct 2024

Insight Global Inc. Pizza Hut – Remote

• Migrated legacy pages written in PHP to modern Typescript React components with an accessible UI and SEO as a central focus

• Developed API routes to handle server-side logic in migration efforts, enhancing the webapps scalability leveraging Nextjs server-side rendering capabilities

• Created dynamic, secure forms with custom validation and reCAPTCHA integration, reducing bot traffic and improving form completion rates

Lead Frontend Developer • Dec 2021– Dec 2023

Catalis Inc. – Alpharetta, GA

• Increased team productivity by implementing an efficient code review process plus automated linting and unit testing for faster and cleaner development

• Bootstrapped the initial version of a React/TypeScript web application to manage state courts

• Integrated APIs for internal and external providers with high latency while maintaining a responsive UI

• Mentored junior developers on application load time, cross-browser development, web accessibility and keyboard navigation

Senior Frontend Developer • May 2017– Nov 2021

Xevo Inc. – Bellevue, Washington, www.xevo.com

• Managed the development of a web application enabling marketers to launch campaigns for different car manufacturers across several platforms using React and GraphQL

• Delivered a new version of the Travel Document Scanning System in a React webapp

• Delivered with team an iOS and Android app for Ocean Media using React Native, featuring a custom video player with adaptive streaming and multi-track support

• Created server-side applications using Go as part of Xevo's Head Unit Application SDK

• Designed and developed multiple web applications using Vue.js, React.js, TypeScript, and Gatsby.js to improve in-vehicle user engagement

• Maintained an embedded Electron React web application receiving custom events running on GNU/Linux

Keiver Hernandez ******@*****.*** • +1-786-***-**** Senior Software Engineer https://keiver.dev • Miami, 33165 2

Frontend Developer / Smart TV Apps Developer • August 2016 – May 2017 Blim, Televisa International LLC – Miami, Florida

• Delivered a Samsung Smart TV app for a video-on-demand platform called Blim, available in Central and Latin America

• Created highly efficient React components for web enabled Samsung TVs

• Integrated Samsung SDK Web APIs into the application to support Smart TV models from 2014 to 2017 using ES6, React, and Redux on Tizen OS

• Designed a navigation library to be used for the Blim Samsung TV Application Web Developer • August 2015 – July 2016

Creative Works Inc. Ecuador, Teqspring Inc. – Las Vegas, Nevada, www.creativeworks.com.ec

• Enhanced user experience by developing an online purchase catalog using the PHP framework Yii2, jQuery, and SCSS

• Created web views based on project wireframes, using JavaScript, HTML5, and CSS3

• Implemented mechanisms and patterns to clean and identify useful data using PHP regular expressions (PCRE), improving data quality by over 80%

• Integrated a new version of a search module with Full Text Search using Sphinx Server and MariaDB

Frontend Developer • November 2014 – July 2015

Numencorp S.A. – Quito, Ecuador

• Improved management potential for customers by developing customized modules for an ERP system using AngularJS, JavaScript, and Twitter Bootstrap

• Optimized the application's handling of large volumes of JSON data, enhancing customer experience

• Automated several areas of the development process using tools like SASS, Grunt, Bower, and NPM

Full-stack Developer • July 2013 – October 2014

Northern Exposed Inc. – Toronto, Canada

• Assessed technologies for migrating web applications developed in VB.Net to newer frameworks and advised the team on the best practices

• Developed an internal application to manage change requests, improving customer support

• Increased revenue for clients by developing e-commerce sites that complied with SEO techniques

Desktop Application Developer/Project Leader • September 2009 – June 2013 ALBET S.A. – Havana, Cuba

• Led the development team for an application to create and clone ISO images of GNU/Linux OS

• Crafted new interface using the Qt GUI Framework for desktop applications EDUCATION

• Bachelors in Computer Sciences University of Computer Sciences, Havana, Cuba, 2009

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