Senior React Frontend Engineer | $4K-$6K USD Monthly + Remote (6 months project)

Envigado , Colombia
contractor

AI overview

Work on high-impact frontend applications with modern technologies for U.S. healthcare clients, collaborating closely with cross-functional teams and leading key technical decisions.

This is a high-impact opportunity to work on modern frontend solutions across web and mobile platforms, involving cloud, real-time data, and AI/LLM integrations — primarily for U.S. clients in the healthcare space. You’ll collaborate directly with designers, product managers, and backend engineers, while shaping key technical decisions on UI development.

  • Build and maintain responsive, performant applications using React (web) and React Native (mobile).
  • Translate complex UI/UX designs into pixel-perfect, production-grade interfaces.
  • Own the frontend implementation of features from wireframe to deployment.
  • Collaborate closely with product, backend, and design teams to ensure seamless end-to-end delivery.
  • Optimize performance across devices and screen sizes.
  • Maintain a consistent design system and component library across platforms.
  • Ensure high standards of accessibility, security, and testing in the UI layer.
  • Interface with U.S.-based clients to gather feedback and iterate quickly.
  • Contribute to internal best practices for frontend development and architecture.
  • Own and manage App Store deployment & approval processes on iOS & Android.
  • 4-7+ years of frontend development experience, with strong expertise in both React and React Native.
  • Proficient in modern JavaScript/TypeScript, hooks, context API, and React architecture patterns.
  • Solid understanding of responsive design, cross-platform UI development, and animations.
  • Experience working with mobile build tools (Xcode, Android Studio), app store deployment, and OTA updates (e.g., CodePush).
  • Familiarity with state management libraries like Redux, Zustand, or Recoil.
  • Strong API integration experience (REST, GraphQL) and handling of asynchronous data flows.
  • Fluent in English (C1 or above) with the ability to communicate effectively with U.S.-based clients.
  • Able to maintain working hours overlapping with US east coast business hours.
  • Experience in the media or advertising domains, and experience with streaming video.
  • Bonus: hands-on exposure to AI/LLM features in frontend interfaces.
  • Creative, detail-oriented, and comfortable working independently in a fast-paced setting.

How to Apply

Please submit your English resumeLinkedIn profileWhatsApp numberreferences, and compensation expectations.

Hiring Process

  • Interview with Hiring Manager
  • Meet with team members
  • Final interview with CEO
  • Offer

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Salary
$4,000 – $6,000 per month
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