Lead Backend Engineer, Identity

Squarespace is hiring a Lead Backend Engineer, Identity to join our fully remote team in the United States. As a Lead Backend Engineer, Identity, you'll design, build, and ship reliable software that scales to millions of users. This is a contract, work-from-home role open to candidates across the US (Remote — Anywhere in the US). 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: • Develop, test, and maintain features across the stack • Review pull requests and mentor teammates • Improve performance, reliability, and developer experience • Write clean, well-tested, and documented code • Collaborate with product and design on new initiatives What we offer: • Comprehensive medical, dental, and vision coverage • Annual learning and professional development budget • Generous paid time off and company holidays • Competitive salary and meaningful equity • 401(k) retirement plan with company match 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 • US work authorization • Solid understanding of data structures, APIs, and databases • Experience with version control and CI/CD • Strong communication in a remote, async environment Nice to have: • Familiarity with modern collaboration tools (Slack, Notion, Linear) • Experience in a fast-paced, high-growth environment