Staff Fullstack Software Engineer, Core Performance
Core
Technical owner of application performance across Dropbox's Core org (web, iOS, Android, desktop), defining the discipline to make the product feel fast for hundreds of millions of users.
Role type
Staff Fullstack Software Engineer (Performance)
Builds
Production performance improvements, measurement systems, and AI-assisted engineering workflows for Dropbox's consumer-facing surfaces.
Domain
Consumer cloud storage / Fullstack web and mobile performance
Deliverable
production ML models | product features | dashboards & analysis | infrastructure
Required skills
Profiling JavaScript and React surfaces, flame graph analysis, root-cause analysis, Python backend development, Go backend development, AI tooling fluency, technical strategy, cross-org influence, mentoring IC3/IC4 engineers
Preferred skills
Experience with RUM data, experience optimizing AI-assisted workflows, experience leading cross-cutting technical initiatives
Technologies
React, JavaScript, Python, Go, LLMs, flame graphs, heat maps, traces
Responsibilities
Profile React surfaces and ship measurable performance improvements on the web; Lead performance initiatives across iOS, Android, and desktop by coordinating with platform experts; Build and own measurement, instrumentation, and regression-detection systems; Write production code in JavaScript/React and Python/Go; Mentor engineers on performance methodology; Apply AI tooling to performance work and optimize AI-assisted engineering workflows; Influence cross-org roadmaps and architectural decisions.
Seniority
Staff, hands-on IC with strategic scope
