Senior Frontend Developer (Contractor)

The Role

We are seeking a skilled Frontend Developer to own and lead the frontend development of a growing AI-powered SaaS platform focused on political communications. This is a hands-on engineering role centered on building polished, performant, and data-driven React applications on top of production systems with real users. Our platform includes an interactive political map with census-block-group-level data, an ad analysis dashboard with multi-dimensional scoring, and an AI-powered content rewriting tool. You will define how complex data is visualized and interacted with transforming Figma designs into scalable, maintainable, and high-quality frontend experiences. You will work closely with backend engineering and design to ensure the platform delivers intuitive user experiences without compromising performance, accessibility, or code quality.

Key Responsibilities:

UI Development (70%)

• 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

Collaboration (20%)

• 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

Quality & Performance (10%)

• Optimize performance (Core Web Vitals)
• Ensure cross-browser compatibility
• Implement proper loading, error, and empty states
• Maintain accessibility best practices

The Frontend Stack

• React 19
• TypeScript
• Vite
• Tailwind CSS
• Zustand
• Recharts
• Mapbox GL
• React Hook Form
• Vitest + React Testing Library

Requirements

Must Have

• 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 — 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

What we offer:

• Fully remote engagement in Argentina.

Employment type:

• Contract