Senior i18n/l10n Engineer

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: As a Senior i18n/l10n Engineer , you will design, architect, and implement robust internationalization frameworks and localization pipelines . You will ensure our software products are seamlessly adaptable to various languages, regional differences, and technical standards globally. You will collaborate closely with, design and engineering teams to build scalable global products. What you’ll do: Architect and maintain scalable i18n libraries, frameworks, and localization pipelines across web, mobile, and backend services. Refactor legacy codebases to support dynamic locale switching, pluralization, gender agreement, date/time/currency formatting, and right-to-left (RTL) layouts. Build and optimize continuous localization pipelines (CI/CD integrations) that automate resource file extraction, translation management system (TMS) syncing, and build-time validation. Keep high i18n coding standards, conduct code reviews, and mentor junior engineers on global-readiness best practices. Partner with UX Designers to ensure global design requirements are met early in the product lifecycle. Participate in our on-call rotation, available at all times while on-call to help respond to and triage any issues that arise. 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: 5+ years of software engineering experience, with at least 3 years dedicated to software internationalization (i18n) and localization (l10n) . Proficiency in TypeScript , JavaScript , and hands-on experience building applications or libraries using React (or similar frameworks). Deep understanding of Unicode standards , CLDR (Common Locale Data Repository), ICU formatting, and BCP 47 locale codes. Hands-on experience with i18n libraries (e.g., i18next, react-intl, formatjs) and Translation Management Systems (TMS) like Phrase, Smartling, or Transifex. Strong knowledge of frontend localization challenges, including RTL layout rendering, CSS logical properties, and font fallback strategies. Experience integrating localization workflows into CI/CD pipelines (e.g., GitHub Actions, Jenkins) and working with serialization formats (JSON, XLIFF, PO, YAML). At Box, we believe that providing the best tools leads to the best outcomes. That's why we equip our engineers with AI-powered development tools like Cursor IDE and Claude to help you write better code faster. 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 pe…