Senior Software Engineer, Acuity Backend

Senior Software Engineer, Acuity Backend

Join to apply for the Senior Software Engineer, Acuity Backend role at Squarespace.

At Squarespace, we firmly believe that design is not merely "how it looks" but "how it works." With this in mind, our backend engineers work on Product Engineering teams which are dedicated to creating the most seamless, integrated products possible. You will report to an Engineering Team Manager and have the option to work full‑time or hybrid from our New York City office.

Acuity Scheduling's mission is to help appointment-based businesses start and grow their service by allowing clients to directly schedule appointments, removing administrative burden and giving our users more time to focus on what they love doing. We are a distinct brand and platform within the Squarespace suite of products.

• Develop new features for Acuity Scheduling – a PHP, Go, and React application – with a focus on backend or full‑stack contributions.
• Write server‑side production code for our high‑volume, highly available platform, develop rapid prototypes for new features, and drive our technical designs forward.
• Evolve the performance of our application as we build new services to support our growing architecture with an API‑first mindset.
• Collaborate with other engineers, Product, Design, Analytics, and Customer Operations to understand the why of our work.
• Practice and mentor peers in disciplined software engineering, such as delivering high quality software with test automation, offering effective code reviews, and writing elegant, readable code.

• 5+ years of large‑scale software development experience in PHP, Go, Java, Python or other programming languages with strong object‑oriented programming experience.
• A solid foundation in software engineering with competencies in data structures, algorithms, and software design best practices.
• An understanding of database schema design, object caching, and system scalability, including service‑oriented architecture.
• A desire to lead projects and tackle challenges with an open mind for learning and sharing your ideas openly with your team.
• Familiarity using AI productivity tools to augment your contributions is encouraged, but not required.
• A degree in Computer Science or related or equivalent industry experience.
• Experience in frontend development using React or a comparable JavaScript framework is preferred, but not required.

• 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.

• A choice between medical plans with an option for 100% covered premiums
• Fertility and 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 and 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 and snacks
• Private rooftop
• Hack week twice per year

Cash Compensation Range: $128,500 - $231,500 USD

The base salary for this position will vary based on job‑related criteria including relevant skills, experience, and 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.

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, e‑commerce, and marketing…