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Senior Frontend Engineer, Launchpad

BoxWarsaw, PolandPosted 13 Sept 2026

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About this role

What is Box? 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. Why Box needs you: 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 . What you’ll do: Evolve Global Experience & Localization Infrastructure: Expand and maintain high-throughput i18n/l10n workflows, Translation Management System (TMS) integrations, ICU/CLDR formatters and dynamic locale-switching.

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Architect & Scale Core Frontend Platform Systems: Own, evolve, and modernize Box’s core UI design system, establishing rock-solid standards for styling isolation and design token theming. Champion AI-Driven Developer Productivity & Product Capabilities: Pioneer the integration of AI tools, coding agents, LLM-assisted migration workflows (e.g., automated component migrations, codemods, AI skill integrations), and intelligent assistants that supercharge developer velocity and operational efficiency across the engineering organization.

Drive Monorepo & Tooling Excellence: Steer the evolution of our frontend, build pipelines (Nx, Yarn 4, Webpack/Vite, CI/CD automated gates), and package management to ensure fast, predictable, and resilient developer workflows. Cross-Domain Technical Leadership & Collaboration: Partner closely with Product Management, UX Design Systems, Architecture SIGs, and cross-functional product teams across Box to deliver scalable multi-quarter initiatives.

Mentor & Elevate: Guide and mentor peers, participate in rigorous architectural design reviews (RFCs/TDDs) and foster a culture of technical excellence and continuous innovation. We are an AI-first company. This means you approach your work with a growth mindset and find ways to leverage AI to help make faster, smarter decisions that will 10X your impact at Box. Who you are: Experience: 5+ years of software engineering experience with a strong track record of designing, building, and operating production-grade web applications, component libraries, or frontend platform infrastructure.

Exceptional AI & Automation Skills: 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.

Modern Frontend Mastery: 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. Platform, Monorepo & Build Systems: Proven experience working with monorepos (Nx, Turborepo, Yarn/pnpm workspaces), module bundling (Webpack, Rollup, Vite, Module Federation), and CI/CD pipelines.

Enterprise Quality & Architecture: Rigorous focus on web accessibility (WCAG 2.1 AA), cross-browser compatibility, web performance vitals, automated testing Communication & Impact: 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. Preferred / Nice-to-Have Qualifications i18n / l10n Expertise: Experience with enterprise localization frameworks (FormatJS, react-intl, i18next), CLDR/ICU standards, bidirectional/RTL layouts, or TMS synchronizations (e.g., Smartling, Transifex, Phrase).

Micro-Frontend Architecture: Hands-on experience with Module Federation, decoupled web runtimes, or cross-application singleton providers. Data & Analytics Infrastructure: Familiarity with client-side event tracking, product analytics integrations (e.g., Pendo, Segment), or Telemetry/Real User Monitoring (RUM). Tech Stack Highlights Languages & Frameworks: TypeScript, JavaScript, React, Node.js Styling & Design Systems: CSS Modules, Design Tokens, Ariakit / Radix / React Aria primitives, Storybook Architecture & Build: Nx Monorepo, Webpack, Module Federation, Yarn Berry, Docker, Jenkins AI & Developer Tooling: LLM integration frameworks, AI Skills, Codemods Experimentation & Analytics: Split.io, Pendo, Datadog / RUM What Box Offers Opportunity to build foundational platform technologies and AI tools that impact hundreds of engineers and millions of global end users.

Collaborative, high-trust engineering culture focused on learning, reverse mentoring, hackathons, and technical growth. Competitive compensation package, comprehensive healthcare benefits, flexible remote/hybrid working model, wellness benefits, and generous equity programs. BENEFITS Check out the overview of the benefits and additional perks offered at Box. Box lives its values, with community and in-person collaboration being a core part of our culture.

Boxers are expected to work from their assigned office a minimum of 3 days per week, with a focus on Tuesdays, Wednesdays, and Thursdays. Your Recruiter will share more about how we work and company culture during the hiring process. EQUAL OPPORTUNITY We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, and any other protected ground of discrimination under applicable human rights legislation".

For details on how we protect your information when you apply, please see our Personnel Privacy Notice . For more details on how Box Poland protects your information, please see our Supplemental Personnel and Candidate Privacy Notice . #LI-NP1 #LI- HYBRID

Source listing: greenhouse_boxinc

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