Senior Frontend Engineer
TopsortLondon, England, United Kingdom • 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 Frontend Developer to build and optimize the user-facing features powering their platform. This role focuses on creating seamless and responsive web experiences, working closely with designers, product managers, and backend engineers. They emphasize collaboration, open communication, and a fast-paced startup environment.
Requirements
- Bachelor’s degree in Computer Science, Design, or related field.
- 5+ years of experience in front-end development.
- Strong knowledge of JavaScript, HTML, CSS, and front-end frameworks such as React.
- Proficiency in modern JavaScript frameworks (React, Vue.js, or similar).
- Experience with front-end build tools and workflows (Webpack, Babel, NPM).
- Strong understanding of responsive design, accessibility, and web performance optimization.
Benefits
- Competitive salary
- Opportunities for professional development
- Collaborative work environment
- Fast-paced and dynamic work environment