The Domains Search team at Squarespace is building the next generation of intelligent search experiences for helping customers find the perfect domain. From applying large language models to produce creative domain suggestions, to building scalable ranking & personalization systems, our team is at the intersection of applied machine learning, natural language processing, & large-scale search infrastructure.

We are looking for a Senior Machine Learning Engineer to help shape & build this platform from the ground up. You will report to an Engineering Team Lead in our New York City headquarters.

Why Join Us

This is a unique opportunity to shape a greenfield ML initiative at Squarespace. You'll be part of a small, high-impact team building the foundation of how millions of customers discover & secure their online identity.

You'll Get To...

• Design, build, & deploy ML models for domain search, including ranking, personalization, & generative domain name creation. Integrate & fine-tune LLMs & hybrid systems (LLMs + rule-based + classical ML) to create brandable, contextual, & internationalized domain suggestions.
• Develop & evaluate ranking algorithms that optimize for multiple signals such as relevance, uniqueness, brandability, & business goals.
• Implement personalization approaches leveraging user, account, & demographic data to tailor search results.
• Collaborate with engineers, data scientists, & product managers to translate ambiguous product ideas into technical requirements & scalable ML solutions.
• Own end-to-end ML lifecycle: from feature engineering, model training, & evaluation to deployment, monitoring, & iterative improvement.
• Contribute to experimentation frameworks (A/B testing, Statsig, etc.) to measure model impact & continuously improve user experience.
• Ensure search quality at scale by developing robust evaluation pipelines & metrics.

Who We're Looking For

• 6+ years of industry experience in machine learning engineering, with at least 2 years at a senior/lead IC level.
• Strong background in search, ranking systems, or recommendation engines.
• Experience with NLP & LLMs (prompt engineering, fine-tuning, or integration into production systems).
• Proficiency in Python, ML frameworks (TensorFlow, PyTorch), & data tooling (Spark, SQL).
• Experience deploying ML models to production & scaling them to handle large traffic volumes.
• Familiarity with A/B testing & online experimentation methodologies.

Benefits & Perks

• A choice between medical plans with an option for 100% covered premiums
• Fertility & adoption benefits
• Access to supplemental insurance plans for additional coverage
• Headspace mindfulness app subscription
• Global Employee Assistance Program
• Retirement benefits with employer match
• Flexible paid time off
• 20 weeks for parental leave & up to 12 weeks to care for an ill family member
• Pretax commuter benefit
• Education reimbursement
• Employee donation match to community organizations
• 8 Global Employee Resource Groups (ERGs)
• Dog-friendly workplace
• Free lunch & snacks
• Private rooftop
• Hack week twice per year

Cash Compensation Range: $128,500 - $236,500 USD

The base salary for this position will vary based on job-related criteria including relevant skills, experience, & location, among other factors.

In addition to the cash compensation above (which includes base salary and, where applicable for eligible roles, may include on-target commissions or overtime pay), Squarespace employees are eligible to be granted an option to purchase our common stock.

About Squarespace

Squarespace is a design-driven platform helping entrepreneurs build brands & businesses online. We empower millions of customers in more than 200 countries & territories with all the tools they need to create an online presence, build an audience, monetize, & scale their business. Our suite of products range from websites, domains, ecommerce, & marketing tools, as well as tools for scheduling with Acuity & creating & managing social media presence with Bio Sites & Unfold. Our team of more than 1,500 is headquartered in bustling New York City, with offices in Dublin, Ireland, Aveiro, Portugal, & coworking spaces in the UK, Netherlands, & Australia. For more information about our company culture, visit https://www.squarespace.com/about/careers.

Our Commitment

Today, more than a million people around the globe use Squarespace to share different perspectives & experiences with the world. Not only do we embrace & 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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