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Senior Frontend Engineer, Launchpad

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Senior Frontend Engineer, Launchpad in Others

  • Warsaw, Poland

Responsibilities

  • Expand and maintain high-throughput internationalization and localization workflows, Translation Management System integrations, ICU/CLDR formatters, and dynamic locale switching.
  • Own and modernize Box’s core frontend platform and UI design system, including styling isolation and design-token theming.
  • Integrate AI tools, coding agents, LLM-assisted migration workflows, codemods, AI skills, and intelligent developer assistants.
  • Guide the evolution of frontend monorepos, build pipelines, package management, and automated development workflows.
  • Partner with product management, UX design systems, architecture groups, and cross-functional product teams on multi-quarter initiatives.
  • Mentor engineers, participate in architectural reviews, write technical specifications, and promote technical excellence.

Requirements

  • 5+ years of software engineering experience designing, building, and operating production-grade web applications, component libraries, or frontend platform infrastructure.
  • Hands-on experience with LLMs, prompt engineering, agentic workflows, AI developer assistants, intelligent pipelines, evaluation harnesses, or context-aware AI integrations.
  • Deep proficiency in TypeScript, JavaScript ESNext, and React, including modern React patterns.
  • Strong understanding of CSS Modules, design tokens, CSS variables/custom properties, CSS isolation and scoping strategies, and animation patterns.
  • Experience with monorepos, module bundling, and CI/CD pipelines.
  • Strong focus on web accessibility, WCAG 2.1 AA, cross-browser compatibility, web performance vitals, and automated testing.
  • Excellent written and verbal English communication skills, including the ability to explain technical trade-offs, write architectural specifications, and build consensus.
  • Preferred qualifications include experience with FormatJS, react-intl, i18next, CLDR/ICU standards, bidirectional or RTL layouts, Translation Management System synchronization, Module Federation, decoupled web runtimes, client-side event tracking, product analytics, or Real User Monitoring.

Benefits

  • Competitive compensation package, comprehensive healthcare benefits, wellness benefits, and generous equity programs.
  • Flexible remote/hybrid working model, with employees expected to work from their assigned office at least three days per week, particularly Tuesdays through Thursdays.
  • Collaborative engineering culture with learning opportunities, reverse mentoring, hackathons, and technical growth.
  • Opportunity to build foundational platform technologies and AI tools affecting hundreds of engineers and millions of global users.

Salary: Competitive

Box

Box is a leader in Intelligent Content Management, offering a platform that empowers organizations to enhance collaboration and manage their content lifecycles effectively. Targeted at enterprise clients, Box leverages enterprise AI to streamline business workflows and facilitate secure content m...

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