Senior Backend Engineer, Domains

Aveiro💼 Full-time🗓 2026-10-01 → 2026-10-02

Core

Architecting new products and expanding feature sets for a large domain registrar, focusing on high-scale architecture, performance, and long-term scalability for millions of digital identities.

Role type

Senior Backend Engineer (Domains)

Builds

Domain registration services and related applications for Squarespace customers

Domain

Internet infrastructure / Domain registration

Required skills

Java, Kotlin, PostgreSQL, CockroachDB, Object-Oriented design, Data structures, Software design patterns, Automated testing, Code reviews, Performance optimization

Preferred skills

None stated

Technologies

Java, Kotlin, PostgreSQL, CockroachDB

Responsibilities

Scale services to meet global product demands, Own end-to-end development lifecycle of backend components, Lead well-scoped backend projects, Collaborate cross-functionally with Product and Design, Improve codebase quality and documentation, Optimize application and database performance

Seniority

Senior, hands-on IC

Sourced via greenhouse · Listed on CareerPlan, which tracks 921,000+ jobs from 20+ sources.

About Squarespace

Public1000 Employees

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, P