Staff Fullstack Software Engineer, Core Performance

There is no existing performance team at Dropbox — youll define the discipline. Youll start with the web, profiling our highest-traffic React surfaces, producing flame graphs and heat maps, identifying the most valuable opportunities, and driving fixes through to shipped, measured wins.

The web is your initial focus and the surface where youll be most hands-on. From there, youll lead the performance initiative across iOS, Android, and desktop by partnering with the internal platform experts who own those clients — coordinating strategy, transferring measurement practices, and driving the work, rather than building everything yourself.

Youll also work across the Python and Go backend services that all of these surfaces depend on, since perceived performance rarely lives in one layer.

Your influence will extend across Core Engineering. Youll define the measurement standards, regression-detection systems, and performance practices that other engineers rely on.

Youll also be expected to use AI fluently in your own engineering work and to lead the optimization of AI-assisted workflows across Core, raising the productivity of every engineer around you.

Youll bring clarity where there is uncertainty, raise the bar for engineering excellence through hands-on leadership, and shape how Dropbox thinks about performance for years to come.

In return, youll gain meaningful exposure to senior leadership, build foundational systems that unlock future product capabilities, and grow into an org-level technical strategist — helping advance Dropboxs mission to create a more enlightened way of working.

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