• As a Senior Performance Engineer, you'll drive end-to-end strategies to optimize application speed, memory, and reliability across our entire platform
• You'll be empowered to analyze, diagnose, and resolve performance bottlenecks wherever they occur-front-end, back-end, or infrastructure-ensuring ClickUp remains the fastest, most reliable productivity platform on the market
• Lead root cause analysis on client performance issues and conduct post-mortems
• Profile application code to isolate inefficient algorithms, memory leaks, and other issues; recommend and implement fixes
• Set up performance monitoring, alerting, and dashboards to proactively identify and resolve client performance problems
• Analyze client traffic patterns, load testing results, and other metrics to establish benchmarks and drive improvements
• Advocate for performance best practices and set client performance standards across the engineering organization
• Identify infrastructure improvements (caching, CDNs, database optimization) to enhance client experience

Collaborate with development teams to embed performance as a core requirement in new feature development

• The ideal candidate is a hands-on expert in browser and NodeJS performance, with a deep understanding of how code impacts rendering, memory, and user experience
• You thrive on solving complex problems, collaborating across teams, and setting new standards for performance excellence
• 10+ years of experience in performance engineering or a related field
• Expertise with profiling tools for browsers and NodeJS
• Deep knowledge of performance metrics, reporting, and analysis across the full stack
• Strong analytical skills with the ability to interpret metrics, logs, and load test results
• Proven problem-solving skills and a passion for optimizing client experiences
• Experience optimizing SQL and databases

Fluency in data structure and algorithm optimization

Advanced understanding of web/mobile architectures, HTTP protocols, caching, databases, and load balancing