Senior Frontend Engineer, Launchpad

Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia.

By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It’s the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift.

The Launchpad Team within the Experience Platform (XP) organization - the team builds the core foundational frontend infrastructure, shared architectural systems, and developer tooling that power all web experiences across Box.

From modernizing our core design system (Blueprint) and architecting next-generation frontend frameworks (Micro-Frontends / Module Federation) to building intelligent developer acceleration tools, developer assistants, and seamless internationalization/localization (i18n/l10n) pipelines, Launchpad establishes the standards and platform capabilities that empower hundreds of engineers across Box to ship secure, accessible, high-performance, and globally consistent user experiences at enterprise scale.

We are looking for an exceptional Senior Software Engineer who combines deep frontend/full-stack platform expertise with a strong passion and demonstrated hands-on skill set in Generative AI, LLM-powered developer tooling, and modern UI architectures.

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• Deep hands-on experience leveraging LLMs, prompt engineering, agentic workflows, or AI developer assistants (e.g., Claude Skills, Cursor) for code generation, automated refactoring, documentation extraction, or workflow automation.

• Experience designing intelligent pipelines, evaluation harnesses, or context-aware AI integrations that solve real platform, developer tooling, or product engineering challenges.

• Deep proficiency in TypeScript, JavaScript (ESNext), and React with solid knowledge of modern React patterns

• Thorough understanding of modern CSS architectures: CSS Modules, Design Tokens, CSS variables/custom properties, CSS isolation/scoping strategies, and animation patterns.

• Proven experience working with monorepos (Nx, Turborepo, Yarn/pnpm workspaces), module bundling (Webpack, Rollup, Vite, Module Federation), and CI/CD pipelines.

• Rigorous focus on web accessibility (WCAG 2.1 AA), cross-browser compatibility, web performance vitals, automated testing

• Excellent English communication skills (written and verbal), with the ability to articulate complex technical trade-offs to stakeholders, write clear architectural specs (RFCs), and drive domain-wide consensus.