Senior Engineering Manager, Email

Squarespace is seeking a Senior Engineering Manager to lead our Business Email organization — a high-impact, high-growth product area that plays a critical role in helping entrepreneurs establish and scale their online presence.

You will own the technical and organizational leadership of our Business Email platform, overseeing a mature, high-scale ecosystem while driving the development of next-generation communication products. This includes everything from seamless purchase and provisioning flows to complex partner integrations and foundational email infrastructure.

This role requires balancing operational excellence and platform reliability with innovation and new product incubation. You will shape long-term strategy in partnership with Product and Design while building and developing the team.

This is a hybrid role based in our NYC office (3 days per week), reporting to the Head of Domains Engineering

• Lead, grow, and develop a team of engineers through hiring, coaching, performance management, and career development.
• Partner with Product and Design to define and execute the long-term vision for Business Email, including expansion of our email suite and new communication offerings.
• Drive Zero-to-One product initiatives from concept through launch, while maintaining and modernizing existing systems.

• Provide technical direction through architecture reviews, system design guidance, and thoughtful trade-off analysis.
• Build a strong, inclusive engineering culture grounded in accountability, technical excellence, and continuous growth.
• Ensure long-term system health, scalability, reliability, and operational excellence across distributed systems.

• Collaborate closely with Business Development, Marketing, Growth, Data, and external partners to align roadmaps and deliver shared outcomes.

• 5+ years of experience managing software engineering teams building customer-facing products and distributed systems.
• Experience managing managers and/or leading multiple teams, with demonstrated success scaling organizations and developing senior engineering talent.
• A track record of driving alignment and execution across multiple workstreams while balancing new product investment with operational excellence.
• Experience leading Zero-to-One product launches, including defining scope, sequencing work, and navigating ambiguity.
• Experience setting technical and product direction in close partnership with Product and Design.
• Strong architectural judgment, particularly in backend and distributed systems, with the ability to guide teams through complex technical trade-offs.
• Experience operating and evolving high-scale production systems with a focus on reliability, performance, and maintainability.
• A passion for mentoring engineers and managers while fostering an inclusive, growing team.

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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