Senior Software Engineer, Frontend

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer, Frontend based in Canada. This is a high-impact, frontend-focused engineering role centered on building polished, scalable user experiences for AI-powered products. You will take ownership of production-grade interfaces using React and TypeScript, with a strong emphasis on performance, accessibility, and UX. The role combines hands-on engineering with technical leadership, mentorship, and the ability to shape frontend standards across the engineering organization. You will also contribute to backend services and APIs using Go when needed, while keeping frontend development as your primary focus. Modern AI and agentic development tools are an integral part of the workflow, enabling faster delivery and more efficient engineering practices. You will work closely with product and business stakeholders in a highly autonomous, remote-first environment where impact matters more than hours worked. This is an opportunity to influence product direction, engineering culture, and technical strategy while solving meaningful challenges at scale.