Frontend Engineer
TopsortSomerville, Massachusetts, United States • California, United States • Boston, Massachusetts, United States • Santiago Metropolitan Region, Chile • São Paulo, Brazil • Barcelona, Catalonia, Spain • Sydney, New South Wales, Australia
Posted October 15, 2025
Full Time
About the Company
Topsort is a leading Retail Media Infrastructure company offering advanced AI-driven advertising solutions to omni-channel retailers, marketplaces, and delivery apps globally. Our innovative products prioritize customer privacy and provide user-friendly, high-performance ad monetization services across various platforms, including sponsored listings, auction-based advertising, and native ads. With a focus on accessibility and efficiency, Topsort empowers businesses with scalable retail media solutions through cutting-edge technology.
Job Description
Topsort is seeking a Senior Front-End Developer to build and optimize user-facing features for their platform. The role involves close collaboration with designers, product managers, and backend engineers to deliver responsive web experiences. The company is experiencing rapid growth and focused on democratizing advertising using modern technology and AI. This is an ideal position for a technically skilled individual who thrives in a fast-paced startup environment.
Requirements
- Develop, maintain, and optimize front-end components and user interfaces.
- Work closely with designers, product managers, and backend developers to implement new features.
- Ensure cross-browser compatibility and responsive design.
- Proficiency in modern JavaScript frameworks (React, Vue.js, or similar).
- Strong understanding of responsive design, accessibility, and web performance optimization.
Benefits
- Competitive salary
- Career growth opportunities
- Collaborative work environment
- Fast-paced startup environment