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Senior Software Engineer, Backend - Acuity

Squarespace

Dublin Hybrid permanent

Posted: March 24, 2026

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Quick Summary

We're looking for a seasoned Backend Engineer to join our team and lead the architecture, performance, and scalability of our Acuity Scheduling platform. The ideal candidate should have a strong background in programming and a passion for building scalable and efficient systems. This is a high-level engineer role that requires a deep understanding of software design patterns and a proven track record of delivering high-quality solutions.

Job Description

The Acuity Scheduling team is looking for experienced Backend Engineers to join our Acuity Engineering team.

Acuity Scheduling is a distinct brand and platform within the Squarespace suite of products whose 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.

As a Backend Engineer, your work will focus on architecture, performance and scalability. You will be actively involved in the end-to-end development of multiple components and in the long-term vision of Squarespace.

This is a hybrid role working from our Dublin office 3 days per week. You will report to the Software Engineering Manager. You will be part of Squarespace's initial primary team in the country and help grow our Ireland presence into a market reference.

You'll Get To…

• Take a lead role with other engineers to provide a rock solid platform

• Collaborate with teammates, and product, design, analytics, and customer operations to understand why we build the features we do

• Help the team improve the existing codebase by promoting thoughtful design patterns and disciplined software engineering (e.g. automated testing, code reviews, and writing beautiful, readable code)

• Scale and improve the performance of applications and databases

• Manage engineering workstreams to accelerate our velocity, supporting stakeholders along the way.

• Actively contribute to team processes and mentor peers as we continue to grow

Who We're Looking For

• 5+ years of Go, Java, PHP or other object-oriented language application development

• 2+ years of experience using relational databases, such as MySQL or PostgreSQL

• A solid foundation in computer science, with competencies in data structures, algorithms, and software design practices

• A sincere commitment to creating readable code and a desire to write clear and practical technical documentation

• A degree in Computer Science or related or equivalent industry experience

Benefits & Perks

• Health insurance with 100% covered premiums for you, your spouse or partner and your dependent children including medical, dental, and vision

• Life and Income Protection

• Fertility and adoption benefits

• Headspace mindfulness app subscription

• Global Employee Assistance Program

• Pension benefits with employer match

• Flexible paid time off

• 26 weeks paid maternity leave & 12 weeks paid paternity leave

• 2 weeks paid family care leave

• Education reimbursement

• Employee donation match to community organizations

• 7 Global Employee Resource Groups (ERGs)

• Free lunch and snacks

• Close proximity to cultural landmarks such as Dublin Castle and St. Patrick's Cathedral

About 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 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.

Our Commitment

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.

Thank you in advance for providing the following details about your work history from your resume! This helps us ensure that your candidate information is accurate and consistent during the hiring process.

Squarespace will never solicit your personal banking information or ask you to transfer money in connection with a job offer or interview. We also will not reach out to you via phone or SMS without your permission or knowledge.

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