Principal Full-Stack Engineer, Data

Squarespace is hiring a Principal Full-Stack Engineer, Data to join our fully remote team in the United States. As a Principal Full-Stack Engineer, Data, you'll design, build, and ship reliable software that scales to millions of users. This is a full-time, work-from-home role open to candidates across the US (Remote — USA). About the role You'll design, build, and ship reliable software that scales to millions of users, partnering with a friendly, distributed team across US time zones. We care about outcomes over hours and give you the autonomy, tools, and support to do your best work from home. What you'll do: • Write clean, well-tested, and documented code • Develop, test, and maintain features across the stack • Improve performance, reliability, and developer experience • Collaborate with product and design on new initiatives • Review pull requests and mentor teammates What we offer: • 401(k) retirement plan with company match • Generous paid time off and company holidays • Flexible working hours across US time zones • Competitive salary and meaningful equity • Comprehensive medical, dental, and vision coverage How we work We're remote-first and async-friendly. Expect clear documentation, regular feedback, supportive teammates, and real opportunities to grow your career. Squarespace is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for everyone.

Minimum qualifications: • 7+ years of experience, including leading teams or projects • Proficiency in one or more modern languages (TypeScript, Go, Python, or Java) • Solid understanding of data structures, APIs, and databases • US work authorization • Experience with version control and CI/CD Nice to have: • Familiarity with modern collaboration tools (Slack, Notion, Linear) • Experience in a fast-paced, high-growth environment