Senior Software Engineer, Frontend - Core Web Platform

Senior Software Engineer, Frontend - Core Web Platform

Squarespace is looking for a Senior Software Engineer on the Core Web Platform team within the Building Blocks Platform Group. You will collaborate with experienced engineers to design our web performance platform, ensuring adherence to Core Web standards. You will focus on developing foundational features that guarantee our components meet the highest standards of accessibility, speed, efficiency, and reliability. You will help enhance user experience and empower teams to build scalable and maintainable digital products at scale. You will report to an Engineering Team Manager and will work from our headquarters in NYC (hybrid 2-3 days per week in office).

You'll Get To…

1. Lead Platform Development: Guide the creation of web solutions, including the Optimization Platform.
2. Conduct Audits: Perform performance audits for products and components, identifying improvements and ensuring compliance.
3. Build Foundational Tools: Design platform features, and APIs that support web performance, including primary components for the Optimization Platform.
4. Promote Best Practices: Create tools and frameworks to help product teams implement performance best practices, providing technical guidance.
5. Automate Quality: Implement automated performance testing in CI/CD pipelines.
6. Mentor & Share: Act as a subject matter expert, mentoring engineers and contributing to knowledge sharing.
7. Optimize Performance: Troubleshoot and resolve complex web performance issues.
8. Influence Architecture: Contribute to the technical direction of the Core Web Platform.

Who We're Looking For

• Experience: 5-7 years in full stack software development, with focus on platform solutions.
• Technical Expertise: Knowledge of web performance standards, proficient in modern programming languages (e.g., JavaScript, TypeScript, Python, Java) and frameworks (e.g., React, Angular, Vue.js), with an understanding of both front-end and back-end development.
• Platform Design: Background in designing scalable and performant full stack platforms.
• Tools: Experience with performance profiling/monitoring tools (e.g., WebPageTest, Lighthouse), Real User Monitoring (RUM) platforms, and optimization tools.
• Web Fundamentals: In-depth knowledge of HTML, CSS, DOM, browser internals, and HTTP protocols.
• CI/CD: Experience integrating performance testing into CI/CD pipelines.
• Mentorship: Ability to educate and empower others on web performance.
• Cloud & Modern Stacks: Experience with GCP or other cloud platforms is desirable.

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

Cash Compensation Range: $128,500 - $207,000 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.

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 1,500 is headquartered in bustling New York City, with offices in Dublin, Ireland, Aveiro, Portugal, and coworking spaces in the UK, Netherlands, and 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 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.