Full Stack Software Engineer (Platform)

• We are looking for a Software Engineer II (Full Stack Web) to join our Client Platform team, focused on Design Systems and Translations
• In this role, you’ll design and build shared frontend and backend systems that enable WHOOP to deliver consistent, high-quality, and globally accessible experiences across web and mobile surfaces
• You’ll work across the stack — from frontend component libraries to backend localization services — while also contributing to the infrastructure and tooling that power design systems and internationalization at scale
• You will play a key role in enabling global expansion by making it easy for teams to build localized, accessible, and visually consistent experiences
• Design, build, and maintain full stack systems that power WHOOP’s design system and translation infrastructure
• Develop and maintain reusable frontend components and shared libraries using modern frameworks (React/TypeScript)
• Implement and improve internationalization (i18n) support, including right-to-left (RTL) layouts and bidirectional text handling
• Partner with Design to build and scale a unified design system across web and mobile platforms
• Build and maintain backend services and APIs that support translation workflows, content delivery, and localization pipelines
• Ensure UI components are flexible, accessible, and adaptable to different languages, screen sizes, and regions
• Improve and maintain build and CI/CD systems (CircleCI, GitHub Actions) to support fast and reliable delivery
• Collaborate cross-functionally with Product, Design, Platform, and Localization teams to deliver scalable solutions
• Participate in code reviews and contribute to best practices around frontend architecture, localization, and design systems

Benefits

• Flexible Vacation: WHOOP has a flexible vacation policy that allows you to unwind, laptop-free, when you need it most.
• Focus on Family: We offer 18 weeks paid parental leave, plus an additional 2 weeks to gradually return to work.
• Get Invested: In addition to a competitive base salary and 401k, you’re eligible to receive stock options to share in the future of WHOOP.
• WHOOP +1: Everyone on the team gets a complimentary WHOOP membership—plus another membership to share with a loved one.
• Health Matters: Our competitive benefits package covers medical, dental, and vision, in addition to mental health services, life and disability insurance, and more.
• Find Your Fit: Full-time employees get $500 a year to spend on wellness in whatever way they see fit, from fitness classes and memberships, to recovery services.
• It Pays to Sleep: Our Sleep Performance Program incentivizes employees to get more sleep. Log an average sleep performance of 85% or higher for the month and get a $100 bonus.
• Location, Location, Location: You can’t beat the views from the rooftop of One Kenmore Square. Feel inspired daily as you work, enjoy free snacks and coffee, and collaborate in the heart of Boston.- This role is a great fit for an engineer who enjoys working across web technologies while also tackling platform challenges like design system consistency, localization workflows, and right-to-left (RTL) support
• Exposure to design tokens, managing tokens for color modes and multiple themes
• Backend experience in languages like Java, Python, or C#
• Strong communication skills and ability to collaborate with technical and non-technical stakeholders
• Exposure to translation platforms or localization pipelines
• Experience with accessibility standards (WCAG) and inclusive design
• Familiarity with frontend architecture and building reusable UI components or design systems
• Experience with relational databases such as PostgreSQL or MySQL
• Experience building and integrating RESTful APIs
• Proficiency in web development using JavaScript/TypeScript, React, and Node.js
• Understanding of internationalization (i18n) and localization best practices
• Experience implementing RTL support using CSS logical properties and direction-based styling
• Familiarity with cloud delivery platforms (Cloudflare, Vercel, CloudFront)
• Familiarity with CSS, responsive design, and modern layout techniques
• Experience with design system tooling (e.g., Storybook) or cross-platform component libraries
• Experience with design implementation, taking mockups in tools like Figma and making them reality
• Experience working with build systems and CI/CD tools (CircleCI, GitHub Actions)
• Familiarity with bidirectional (BiDi) text handling and localization edge cases
• 2–4 years of professional software engineering experience
• Interested in the role, but don’t meet every qualification? We encourage you to still apply! At WHOOP, we believe there is much more to a candidate than what is written on paper, and we value character as much as experience. As we continue to build a diverse and inclusive environment, we encourage anyone who is interested in this role to apply