Software Engineer II (Full Stack, Platform) Software Boston, MA Boston, MA Learn more about our Software Org and how to be successful in your engineering career at WHOOP via our Career Framework. This role is based in the WHOOP office located in Boston, MA. The successful candidate must be prepared to relocate if necessary to work out of the Boston, MA office. 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. WHOOP is an Equal Opportunity Employer and participates in E-verify to determine employment eligibility. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. The WHOOP compensation philosophy is designed to attract, motivate, and retain exceptional talent by offering competitive base salaries, meaningful equity, and consistent pay practices that reflect our mission and core values. At WHOOP, we view total compensation as the combination of base salary, equity, and benefits, with equity serving as a key differentiator that aligns our employees with the long-term success of the company and allows every member of our corporate team to own part of WHOOP and share in the company’s long-term growth and success. The U.S. base salary range for this full-time position is $125,000 - $175,000. Salary ranges are determined by role, level, and location. Within each range, individual pay is based on factors such as job-related skills, experience, performance, and relevant education or training. In addition to the base salary, the successful candidate will also receive benefits and a generous equity package. These ranges may be modified in the future to reflect evolving market conditions and organizational needs. While most offers will typically fall toward the starting point of the range, total compensation will depend on the candidate’s specific qualifications, expertise, and alignment with the role’s requirements. RESPONSIBILITIES:

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

QUALIFICATIONS:

2–4 years of professional software engineering experience

Proficiency in web development using JavaScript/TypeScript, React, and Node.js

Experience building and integrating RESTful APIs

Familiarity with frontend architecture and building reusable UI components or design systems

Experience with design implementation, taking mockups in tools like Figma and making them reality

Understanding of internationalization (i18n) and localization best practices

Familiarity with CSS, responsive design, and modern layout techniques

Experience with relational databases such as PostgreSQL or MySQL

Experience working with build systems and CI/CD tools (CircleCI, GitHub Actions)

Strong communication skills and ability to collaborate with technical and non-technical stakeholders

Experience implementing RTL support using CSS logical properties and direction-based styling

Familiarity with bidirectional (BiDi) text handling and localization edge cases

Experience with design system tooling (e.g., Storybook) or cross-platform component libraries

Exposure to translation platforms or localization pipelines

Exposure to design tokens, managing tokens for color modes and multiple themes

Backend experience in languages like Java, Python, or C#

Familiarity with cloud delivery platforms (Cloudflare, Vercel, CloudFront)

Experience with accessibility standards (WCAG) and inclusive design

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