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Alejandro Navarro Dimas
From Colombia 05:47 PM (GMT-05:00)
$20/hr or $30,000/yr
Active over a week ago
Member since Mar 2026

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Frontend Developer | React | Next | Typescript | Vue

Front-end Engineer
Available for hire
Years of experience
9+ years
Experience level
Senior
Available for
Full-time, Part-time, Contract
Download Resume / CV

I build frontend systems that hold up at scale.

Over 9 years, I've shipped production React and Next.js applications used by millions — from ESPN Fantasy Games (140M+ registered users) to MasterClass's Certificates learning platform and a healthcare CMS serving clinical teams across the UK.

What I actually do day-to-day: architect component systems, enforce code quality through reviews, write tests that catch real bugs, and make technical calls that reduce future pain for the team. I don't just build features — I think about maintainability, performance, and the engineer who will read this code in 18 months.

A few concrete things I've delivered: — Migrated 40+ legacy components to React on ESPN, 2 sprints ahead of schedule — Took test coverage from 40% → 85% on a healthcare CMS, cutting production bugs in half — Cut onboarding time from 2 weeks to 4 days by standardizing component patterns and code review culture — Reduced API over-fetching ~35% by restructuring GraphQL queries across health-metrics modules

Stack I work in most: React, Next.js (App Router), TypeScript, TailwindCSS, React Query, GraphQL/Apollo, Jest + RTL, Node.js.

Skills

JavaScript CSS TypeScript React.js Next.js Gulp.js Vue.js Tailwind CSS Backbone.js LESS Framer Motion GitLab Redux.js SASS Zod jQuery JSON Vite.js Mocha.js Grunt Vuex Yarn MobX NextAuth PostCSS Storybook Ant Design Responsive design BEM Git GitHub Figma Agile Single Page Application

Languages

English Spanish

Employment History

Frontend Developer at Force Manager 2022 - 2022
At ForceManager, a sales focused CRM platform, I contributed as a Frontend Developer building features using React.js, Redux, and the company's internal component library. The platform provided modules for sales tracking, company directories, client profiles, and visit location tracking. During my time on the team, I collaborated with other engineers to implement new features, modernize legacy modules, and improve application performance. This role provided valuable experience in building scalable CRM interfaces and optimizing performance for data heavy applications.
Senior Frontend Developer at Rootstrap 2022 - 2026
As a Web Developer at Rootstrap, I worked on a healthcare focused CMS platform. My responsibilities included code reviews, feature assessments, implementing new features, and supporting issue resolution for client needs. I collaborated closely with product and design teams to extend application modules and improve system capabilities. The technological stack included Vue.js, Vuex, Vue Router, GraphQL clients for retrieving user data, prescriptions, and health metrics. I also worked on Web platform for education to certify its users in different trending disciplines in the fields of technology, leadership, education, etc. The technological stack included React, NextJs, Tailwind, React Testing Library, Figma for design, React Query for API integrations.
Web Consultant at Gorilla Logic 2021 - 2022
At Gorilla Logic, I worked on a project for one of the most prominent home services marketplaces in the United States. My work focused on building presentational components based on Figma designs using Vue.js, TypeScript, Styled Components, and modern frontend tooling. I implemented client specific components and new pages while integrating features with backend services. I also collaborated with distributed teams following Agile development practices. This role allowed me to contribute to a large scale platform while gaining deeper experience in frontend architecture and component based development.
Web UI Developer at Globant 2017 - 2021
At Globant, I worked on the ESPN Fantasy Games platform as part of the engineering team responsible for modernizing the application. I contributed to the migration of legacy JavaScript components into modern React components and built new pages using the client's component library. I also implemented unit tests for components and integrated frontend pages with backend APIs to retrieve match results, statistics, and league data.
Frontend Developer at Xumak 2015 - 2017
I contributed to enterprise web applications by implementing new features based on design specifications and maintaining existing interfaces. I also provided client support for issue resolution and participated in refactoring legacy code. I had the opportunity to work on projects for major international clients including Novo Nordisk, Digicel, LATAM Airlines, and Breville Australia.

Education

Systems Engineer at Fundacion Universitaria Tecnologico Comfenalco 2009 - 2014
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