Frontend Software Engineer (AI Training)

This role is with one of Weekday's clients. We are seeking experienced Frontend Software Engineers to contribute to an AI-driven initiative focused on building and evaluating high-quality user interfaces. You will apply your frontend development expertise to help improve next-generation AI systems by creating accurate, production-quality UI implementations and providing domain-specific technical insights. No prior AI experience is required — your knowledge of frontend engineering, responsive design, and modern web technologies will play a key role in helping AI models learn how to build visually polished, accessible, and high-performing web applications. You will translate detailed component specifications, design systems, and UI mockups into accurate web interfaces, build pixel-perfect responsive components, ensure implementations follow accessibility standards and design systems, optimize frontend performance across browsers and devices, and contribute technical expertise to support the development and evaluation of advanced AI models for frontend engineering tasks. This is a fully remote contract engagement with flexible working arrangements and opportunities for continued engagement based on project needs and performance.

3 or more years of professional experience in frontend software development. Strong proficiency in TypeScript, CSS3, HTML, and modern responsive web development. Demonstrated experience building pixel-perfect interfaces from design specifications, mockups, or screenshots. Experience working with component libraries, design systems, and reusable UI architectures. Strong understanding of responsive layouts, cross-browser compatibility, accessibility standards (WCAG), and frontend performance optimization. Excellent written and verbal communication skills in English. Self-motivated with the ability to work independently in distributed remote environments. Experience extending or maintaining enterprise design systems is a plus. Familiarity with modern frontend frameworks and component-driven development is a plus. Master's degree or PhD in Computer Science or a related technical field is a plus.