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Senior Software Engineer, Backend

Squarespace

New York City, NY
Full Time
Senior
154k-237k
14 days ago

Job Description

About the Role

At Squarespace, we're reimagining how people bring their ideas to life online. Our Product Engineering teams are at the heart of that mission - building the seamless, powerful experiences our customers rely on every day. We are looking for a Senior Software Engineer with a focus on backend or full-stack contributions. You will work within our Acuity Scheduling organization, a distinct brand and platform within the Squarespace suite of products helping appointment-based businesses automate their client bookings, cancellations, reminders, and payments with flexible scheduling software. You will report to an Engineering Team Manager and will work from our headquarters in NYC (hybrid 2-3 days per week in office).

Key Responsibilities

  • Develop new features for Acuity Scheduling, a PHP and React application, with a focus on backend or full-stack contributions
  • Write server-side production code for high-volume, available applications, develop rapid prototypes for new features, and guide technical designs forward
  • Scale and improve the performance of the application and database
  • Collaborate with engineers, product, design, analytics, and customer operations to understand the purpose of built features
  • Practice and mentor disciplined software engineering practices such as automated testing, code reviews, and writing elegant, readable code

Requirements

  • 5+ years of large-scale software development experience in PHP, Java, Python, Go, or another object-oriented language
  • A sincere commitment to creating readable code and an understanding of database schema design, caching, and scalability
  • A solid foundation in computer science, with competencies in data structures, algorithms, and software design practices
  • A degree in Computer Science or related field or equivalent industry experience
  • Experience in frontend development using React or a comparable JavaScript framework is preferred, but not required

Nice to Have

  • Experience in frontend development using React or a comparable JavaScript framework

Qualifications

  • 5+ years of experience in large-scale software development
  • Proficiency in PHP, Java, Python, Go, or similar object-oriented languages
  • Understanding of database schema design, caching, and scalability
  • Degree in Computer Science or related field or equivalent experience

Benefits & Perks

  • 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

Working at Squarespace

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 tools to create an online presence, build an audience, monetize, and scale their business. Our team of more than 1,500 is headquartered in New York City, with offices in Dublin, Ireland, Aveiro, Portugal, and coworking spaces in the UK, Netherlands, and Australia. We embrace diversity and are committed to equal employment opportunity for all employees and applicants.

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Job Details

Posted AtJul 10, 2025
Salary154k-237k
Job TypeFull Time
Work ModeHybrid
ExperienceSenior

Job Skills

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About Squarespace

Website

squarespace.com

Company Size

1001-5000 employees

Location

New York City, NY

Industry

Computer Systems Design and Related Services

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