Senior Frontend Platform Engineer, Upstart

• 6-8 years of professional frontend engineering experience, with deep expertise in React and TypeScript; experience with mobile (React Native) is a plus
• Strong knowledge of web performance, testing strategies and modern frontend architectures. Solid understanding of observability and monitoring for frontend systems (eg: Sentry, Datadog)
• Hands-on experience with modern build systems (eg: Turbo, Webpack, Vite), skilled in CI/CD tooling (eg: GitHub Actions, CircleCI) and automation of release pipelines

Desirable

• The Frontend Platform team champions frontend excellence at Upstart by empowering teams to engineer quality user experiences
• We build tools and services that are used internally by the engineering, design and product teams
• We are looking for an experienced Senior Frontend Platform Engineer to help shape the future of our engineering platform and empower product teams to deliver exceptional user experiences with speed, quality, and consistency
• In this role, you will own and evolve the core frontend platform, frameworks, and developer tooling that power our web and mobile applications
• You’ll collaborate closely with product engineers, infrastructure teams, and design systems partners to drive technical strategy, set standards, and solve cross-cutting challenges at scale
• Platform Development: Design, build, and maintain the core frontend platform and tooling used across product engineering teams
• Developer Experience: Lead efforts to improve build pipelines, CI/CD workflows, testing frameworks, and local dev environments
• Framework & Architecture: Guide adoption of technologies (e.g., React, TypeScript, React Native) and define architectural patterns that ensure scalability, reliability, and performance
• Cross-Functional Collaboration: Work with design systems, backend, and infra teams to align frontend initiatives with company-wide engineering strategy