Senior Software Engineer, Java (Domains)

Squarespace is looking for a Senior Software Engineer 2 to join the Business Email team, which powers one of our high-growth product areas and plays a critical role in helping entrepreneurs succeed. As part of the Engineering team, you’ll build scalable backend systems that support customer-facing email experiences. The team’s work spans rearchitecting legacy systems and building new product capabilities across our core Email platform. This is a hybrid role based in our NYC office (3 days per week), reporting to the Senior Engineering Manager of Email.

• Own the design, implementation, and long-term evolution of backend services in Java that support the Email product and integrations.
• Drive architecture and system design decisions that improve reliability, scalability, performance, and maintainability across the team’s systems.
• Partner closely with Product, Design, QA, DevOps, and peer engineering teams to align requirements, resolve competing priorities, and deliver the best solution for customers and the business.
• Influence technical direction beyond your immediate team by improving decision-making, communicating standards, and helping shape engineering best practices.
• Mentor and coach engineers through design reviews, code reviews, and hands-on collaboration, multiplying the effectiveness of the broader team.
• Troubleshoot production issues, participate in on-call rotations, and advocate for strong observability and operational excellence across the platform.

• 7+ years of professional software engineering experience, with deep backend expertise and a track record of delivering complex systems in production.
• Strong proficiency in Java and experience building distributed backend systems and RESTful APIs, ideally using frameworks such as Spring.
• Experience leading technically ambiguous projects with end-to-end ownership, including defining scope, evaluating feasibility, and driving execution to launch.
• Strong system design and architectural judgment, with the ability to make sound trade-offs across scale, reliability, and product velocity.
• Expertise with databases, asynchronous processing, and message-driven systems such as Kafka.

• Provide opportunities that align with your interests, career growth, and the growth of the company.
• Create an inclusive environment that’s psychologically safe and encourages learning.
• Work with you to build a personalized career growth plan with clear expectations and milestones.

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 customer base, but we also strive for 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.