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Squarespace // creative tools for designing websites
Engineering, Full Time    New York City    Posted: Tuesday, September 15, 2020
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Squarespace is looking for a self-driven Senior Security Engineer to lead a dedicated team responsible for monitoring & responding to attacks across Squarespace. You will work closely with teams across the organization to build processes that secure the platform powering millions of websites. Youll act as a subject matter expert on threat detection & response across the entire organization.  


  • Respond to ongoing incidents, investigate historical compromises, & provide adept analysis & findings
  • Define strategies for threat detection, alerting, & response; implement strategies in cooperation with engineering teams
  • Initiate reactive & proactive threat hunting engagements by performing endpoint, network, application, & log analysis
  • Work with & communicate effectively with product leaders to detect & respond to attacks
  • Define processes & build playbooks of operational response to incidents
  • Architect, design, implement, support & evaluate security-focused tools & services


  • 5 - 10 years experience managing security incidents and/or experience working in a Detection & Response team or equivalent function
  • Superb communication & leadership capacity; ability to partner effectively with diverse company stakeholders
  • Proficiency in at least 1 programming or scripting language (preference to Python, Go, & JavaScript)
  • Knowledge of network & web related protocols (e.g., TCP/IP, UDP, IPSEC, HTTP/HTTPS) & how to keep them secure.
  • Diverse range of security experience at the enterprise level (information, application, network, & IT)
  • Experience protecting against & mitigating real world attacks (DDoS, XSS, session-hijacking, SQL injection, CSRF, etc)
  • Strong Linux fundamentals & ability to analyze data with security tool sets.
  • Practical experience working with with cloud technologies (eg. Amazon Web Services, Google Cloud Platform, Heroku, Microsoft Azure, etc.)
  • Experience coordinating with GRC/Internal Audit team in the facilitation of external audits (SOX, PCI DSS, HIPAA) a plus

About Squarespace

Squarespace makes beautiful products to help people with creative ideas succeed. By blending elegant design & sophisticated engineering, we empower millions of people from individuals & local artists to entrepreneurs shaping the worlds most iconic businesses to share their stories with the world. Squarespaces team of more than 1,000 is headquartered in downtown New York City, with offices in Dublin & Portland. For more information, visit

Benefits & Perks

  • Health insurance with 100% premium covered for you & your dependent children
  • Flexible vacation & paid time off
  • Up to 20 weeks of paid family leave
  • Equity plan for all employees
  • Retirement benefits with employer match
  • Fertility & adoption benefits
  • Free lunch & snacks at all offices
  • Education reimbursement
  • Dog-friendly workplace in New York office
  • Commuter benefit in the form of reduced tax (Ireland) & pretax (US)

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 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.

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