ClickUp is a high-growth SaaS company building an all-in-one productivity platform. We've unified project management, document collaboration, chat, and more to help over 20 million users and thousands of teams work more efficiently. With over $300 million in ARR, we're scaling rapidly and solving complex technical challenges to support our global user base. At ClickUp, our real-time collaborative surfaces are at the heart of our product. We are looking for a pivotal technical leader to own the architectural vision for these tools and set a new standard of performance and reliability for our enterprise customers. This is fundamentally a distributed systems challenge. You will be accountable for the core architecture that allows millions of concurrent users to collaborate with ultra-low latency. Your work will require a deep understanding of these real-time systems, including state consistency, concurrency models, and the trade-offs of CRDTs and operational transforms. This isn't a role for a whiteboard architect. This is a hands-on leadership opportunity to transform a complex, mature architecture into a world-class, unified platform. You will diagnose deep, cross-cutting root problems, design a pragmatic path to overhaul our core systems, and lead by doing. Your success will be measured by the tangible improvement in our product's performance and the lasting, positive impact you have on ClickUp’s engineering culture.