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Senior Frontend Developer (Contractor)

8 months

In short

Seeking a Senior Frontend Developer to lead development of an AI-powered SaaS platform focusing on political communications. Requires expertise in React, TypeScript, and Tailwind CSS with 4+ years experience. The role is fully remote in Argentina and contract-based.

Where
Remote Β· Argentina
Level
Senior-level Β· Freelance / Contract
Tech Holding
Tech Holding
  • Studios & Agencies

Builds software consulting solutions for clients across industries.

0 open roles Β· usually open about 4 weeks

Responsibilities

  • Implement React + TypeScript components from Figma specifications
  • Build data visualizations including charts, graphs, radar charts, and score displays
  • Develop interactive UI elements such as annotated text viewers with clickable highlights and popovers
  • Implement sortable/filterable tables and multi-step onboarding flows
  • Integrate frontend components with REST APIs
  • Write clean, typed, and tested code
  • Collaborate with backend developers on API contracts
  • Work with design to refine UX details and edge cases
  • Participate in code reviews
  • Contribute to and document reusable component libraries
  • Optimize performance (Core Web Vitals)
  • Ensure cross-browser compatibility
  • Implement proper loading, error, and empty states
  • Maintain accessibility best practices

Requirements

  • 4+ years of professional frontend development experience
  • Strong proficiency in React and TypeScript
  • Experience with Tailwind CSS (or strong CSS skills with willingness to learn Tailwind)
  • Experience consuming REST APIs and managing asynchronous data
  • Understanding of responsive design (desktop and tablet)
  • Strong attention to UI/UX details
  • Experience using Git
  • Comfortable communicating in English (written and verbal β€” async-first team)
  • Based in Argentina
  • Available to overlap at least 4 hours with US Eastern Time

Preferred Qualifications

  • Experience with data visualization libraries (Recharts, Chart.js, D3, or similar)
  • Experience with state management tools (Zustand, Redux, MobX)
  • Experience translating Figma designs into production-ready code
  • Experience with component testing (Vitest, Jest, React Testing Library)
  • Experience handling video or media in web applications

Nice to Have

  • Experience with Mapbox GL or geographic data visualizations
  • Experience with Framer Motion or UI animation
  • Portfolio demonstrating complex dashboards or data-rich interfaces
  • Experience with React Hook Form
  • Interest in political technology, media analysis, or data journalism

Work Location and Type

  • Fully remote engagement in Argentina
  • Contract
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