Staff Fullstack Software Engineer
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 Strategy & Hands-on IC)
Builds
Production performance improvements, measurement/instrumentation systems, and AI-assisted engineering workflows for consumer-facing surfaces.
Domain
Consumer Cloud Storage / Fullstack Engineering / Performance Engineering
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Profiling JavaScript/React surfaces, flame graph analysis, root-cause analysis, Python/Go backend development, AI tooling integration, cross-org technical strategy, mentoring senior engineers, defining engineering standards, CI/CD integration, RUM telemetry analysis
Preferred skills
Native iOS (Swift) profiling, Native Android (Kotlin) profiling, Desktop client optimization, building performance regression-detection systems, statistically rigorous performance data comparison
Technologies
React, JavaScript, Python, Go, Swift, Kotlin, LLMs, RUM telemetry, CI/CD
Responsibilities
Profile React surfaces and ship measurable performance fixes for the web application; Coordinate performance strategy across iOS, Android, and desktop with platform owners; Build and own measurement, instrumentation, and regression-detection systems; Write production code in JavaScript/React, Python, and Go; Mentor IC3 and IC4 engineers on performance methodology; Lead optimization of AI-assisted engineering workflows; Influence cross-org roadmaps and architectural decisions.
Seniority
Staff, hands-on IC with strategic scope