Staff FrontEnd Engineer - Platform - App Core Usage

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff FrontEnd Engineer - Platform - App Core Usage based in Canada. As a Staff FrontEnd Engineer, you will help build and evolve the critical applications and platform services that power customer usage, billing, and account management for a large-scale SaaS environment. With a strong focus on frontend engineering and meaningful backend contributions, you will develop intuitive customer experiences using TypeScript and React while supporting APIs and services built with Go and Node.js. You will work at the intersection of product engineering, platform infrastructure, and business operations, ensuring reliable usage calculations, seamless integrations, and scalable customer workflows. As a senior technical leader, you will guide complex projects, mentor engineers, and influence architectural decisions across teams. You will also strengthen system reliability, automated delivery, and operational resilience in a distributed, remote-first environment. This role offers the opportunity to solve challenging engineering problems while shaping the future of cloud-native applications and developer experiences.