Senior Software Engineer, Frontend

As a Senior Software Engineer, Frontend at Harvey, you will own and lead engineering projects that define the user experience of our different products: Assistant, Vault, Workflows, and Harvey in Microsoft Word and Outlook. You will also lead frontend engineering on new products that we are building at Harvey. The team is composed of highly motivated, skilled, and considerate engineers.

Everything we touch is polished to high standards extending to all aspects of our work – from design to architecture to code to slack communication. If any of this resonates with you, this role might be right for you.

This role is based in San Francisco, CA. We use a hybrid in-person work model and offer relocation assistance to new employees.

- Build new interfaces for lawyers and organizations to collaborate with AI.

- Lead end-to-end UI features for Assistant, Vault, Workflows, our Word/Outlook add-ins, and future Harvey products — from scoping and design reviews to implementation, launch, and iteration.

- Build polished, high-performance React + TypeScript interfaces using TailwindCSS, with crisp interactions, resilient state management, and strong error handling.

- Architect reusable components and patterns and evolve our internal design system.

- Collaborate tightly with design and backend/infrastructure to shape APIs and UX for long-running jobs, streaming results, and tool-calling workflows.

- Raise the bar on frontend reliability and security UX for enterprise and regulated environments.

- Mentor peers through thoughtful code reviews and documentation; help refine our frontend standards and developer experience.

- Experience with React, Typescript, and CSS (we use Tailwind CSS)

- Track record of building fast-growing SaaS products by leveraging PWA technologies

- Track record of shipping highly intuitive products, strong attention to detail

- Experience working at startups and scaleups (anywhere from early-to-late-stage) is a plus