Senior Software Engineer - Java

At Squarespace, we're reimagining how people bring their ideas to life online. Our R&D Engineering teams are at the heart of that mission — building the seamless, powerful experiences our customers rely on every day.

As a Backend Engineer, you'll be part of a collaborative, high-impact team working to create scalable, reliable systems behind some of the most intuitive tools on the web. Whether you've been in the industry for three years or twenty, if you're passionate about designing elegant solutions— we want to hear from you. This is a hybrid role working from our NYC office 3 days per week. You will report to the Engineering Team Manager.

We're hiring across several impactful R&D teams. Based on your experience and interests, you could join one of the following:

• Identity and Access Management (IAM) is responsible for building and maintaining the foundational systems that ensure secure access across the platform for both customers and internal teams. This includes managing core functionalities like authentication (login), authorization (permissions), and session management.
• Communications Platform provides tools and services that make communication between our product teams and customers effortless at scale. Our vision is to create platforms that are easy to use and impactful. Because our work is used by most product teams, this is a high-visibility, high-impact role.

• Build scalable backend services in Java and related technologies.
• Write clean, efficient code that powers high-traffic, production-ready systems.
• Contribute to design decisions and architectural discussions.
• Collaborate with engineers, designers, and product managers.
• Create features from concept through implementation to launch.

• 7+ years of professional experience in backend development using Java, Python, C, or similar languages
• Experience building large-scale, distributed systems
• Strong computer science fundamentals: data structures, algorithms, and system design
• Comfortable working in collaborative environments where feedback is valued
• A degree in Computer Science — or equivalent industry experience that speaks for itself

• You'll work with passionate, thoughtful engineers solving real-world problems.
• You'll be supported in growing your skills and your career.
• You'll find a workplace that values inclusivity, creativity, and curiosity.

Squarespace is a design-driven platform helping entrepreneurs build brands and businesses online. We empower millions of customers in more than 200 countries and territories with all the tools they need to create an online presence, build an audience, monetize, and scale their business. Our suite of products range from websites, domains, ecommerce, and marketing tools, as well as tools for scheduling with Acuity and creating and managing social media presence with Bio Sites and Unfold. Our team of more than 1,700 is headquartered in New York City, with offices in Dublin, Ireland, and Aveiro, Portugal. For more information about our company, visit https://www.squarespace.com/about/careers.

Today, more than a million people around the globe use Squarespace to share different perspectives and experiences with the world. Not only do we embrace and celebrate the diversity of our customers, but we also work toward the same in our employees. At Squarespace, we are committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, religion, national origin, gender, sex, gender identity or expression, sexual orientation, age, citizenship, marital or parental status, disability, veteran status, or other class protected by applicable law. We are proud to be an equal opportunity workplace.

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