Sr Frontend Developer in United States at Jobgether

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr Frontend Developer based in the United States.

As a Senior Frontend Developer, you will build sophisticated, interactive web applications that combine modern frontend technologies with data visualization and artificial intelligence.
You will develop intuitive interfaces for data exploration, thematic content, and natural-language search experiences.
Using React and TypeScript, you will create responsive, high-performance applications that make complex information accessible and engaging.
You will also design advanced visualizations and AI-powered experiences, including conversational interfaces, LLM-generated responses, and agent-driven workflows.
Working with REST APIs and backend services, you will help deliver reliable, scalable, and user-friendly digital products.
This fully remote opportunity offers the chance to contribute to innovative projects while collaborating with international teams.

You will lead frontend development across data-intensive and AI-enabled applications, ensuring excellent usability, performance, and technical quality. Your responsibilities will include:

• Develop frontend features using React and TypeScript for data explorers, thematic pages, and natural-language search applications.

• Build interactive data visualizations with D3.js and SVG, including maps, timelines, charts, and tables.

• Design and implement AI-powered interfaces such as conversational search, LLM-generated responses, copilots, and agent-based workflows.

• Develop generative user interfaces that dynamically integrate charts, tables, and other interactive components.

• Integrate REST APIs and backend services developed with Flask.

• Create responsive, accessible, and high-performance interfaces across devices and screen sizes.

• Implement effective client-side state management and ensure seamless interactions between frontend components and backend services.

• Participate in testing, code reviews, and deployment workflows using Git and GitHub.

• Contribute to frontend architecture decisions and maintain high standards of code quality, reliability, and maintainability.

Requirements

The ideal candidate is an experienced frontend engineer with strong React expertise and a background building data-rich and AI-driven applications. The following qualifications are required:

• 8–12 years of professional frontend development experience.

• Advanced proficiency in JavaScript (ES6+) and TypeScript.

• Extensive experience with React, including hooks, state management, and component-based architecture.

• Strong knowledge of CSS and SCSS, including Flexbox, CSS Grid, and responsive design principles.

• Hands-on experience with data visualization using D3.js and SVG.

• Familiarity with REST APIs, JSON, and client-side state management.

• Experience developing at least one LLM-powered interface, such as a conversational chat application, AI search experience, copilot, or agent-based workflow.

• Experience with Jest and React Testing Library.

• Proficiency with Git and GitHub, including collaborative development and code review practices.

• Strong understanding of frontend performance, accessibility, and modern web development standards.

• Advanced conversational English, with the ability to communicate effectively and collaborate with international teams.

Benefits

• Competitive salary.

• Fully remote work arrangement.

• Opportunity to work on innovative projects involving AI, LLM-powered applications, and advanced data visualization.

• Collaboration with international teams and exposure to global technology projects.

• Full-time employment.