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. Accountabilities Design, develop, and own polished, accessible, performant, and production-ready user-facing features using React and TypeScript.Establish and maintain high technical and quality standards for frontend engineering, including through code reviews, architectural decisions, and technical guidance.Mentor engineers and contribute to raising the team's technical capabilities, engineering practices, and overall quality bar.Use AI and agentic development tools effectively to accelerate delivery, improve productivity, and establish best practices for AI-assisted software development.Develop and extend backend services and APIs in Go when required to support frontend experiences.Partner closely with business and product stakeholders to define, architect, and deliver new experiences from initial concept through production.Contribute to product and engineering roadmaps and help shape broader technical priorities and strategy.Create and maintain user-facing technical documentation that supports product understanding and adoption.Help strengthen engineering culture by promoting high standards, thoughtful technical decisions, and efficient development practices.Troubleshoot and improve application performance, usability, accessibility, reliability, and scalability across production systems. Requirements 7+ years of professional software engineering experience, with deep specialization in frontend development.Expert-level proficiency with React and TypeScript, combined with a strong understanding of UX, accessibility, performance, and scalable frontend architecture.Demonstrated experience using AI and agentic coding tools such as Claude to improve development efficiency and delivery speed.Proven technical leadership experience, including setting engineering standards, mentoring developers, conducting code reviews, and making significant technical decisions.Strong track record of delivering high-quality, production-grade frontend applications at scale.Working knowledge of Go, or the ability to become productive with Go quickly, for supporting backend services and APIs.Ability to work autonomously in ambiguous environments, prioritize effectively, and make sound decisions based on business and customer needs.Strong customer-centric mindset with empathy for users and attention to the overall product experience.Experience in fintech, fraud prevention, compliance, risk management, or other regulated environments is preferred.Excellent English communication skills, with the ability to communicate effectively in both informal discussions and formal documentation.Exposure to data tooling or data pipelines is considered a plus.Familiarity with technologies such as Node.js, PostgreSQL, BigQuery, Bigtable, Python, Java, and Terraform is advantageous. Benefi