<h2>Role Description</h2> <div> <p>As a Staff Software Engineer at Dropbox, you ll be the singular technical owner of application performance across the Core org — the part of Dropbox that owns every consumer-facing surface: web, iOS, Android, and desktop. This is one of the company s most visible, cross-cutting technical challenges. Your mandate is to make Dropbox feel fast on every surface our customers use. You ll operate at the intersection of measurement, engineering, and product impact, owning ambiguous problems that span the entire stack and translate directly into business outcomes for hundreds of millions of users.</p> <p>There is no existing performance team at Dropbox — you ll define the discipline. You ll 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 you ll be most hands-on. From there, you ll 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. You ll also work across the Python and Go backend services that all of these surfaces depend on, since perceived performance rarely lives in one layer.</p> <p>Your influence will extend across Core Engineering. You ll define the measurement standards, regression-detection systems, and performance practices that other engineers rely on. You ll 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. You ll 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.<br>In return, you ll gain meaningful exposure to senior leadership, build foundational systems that unlock future product capabilities, and grow into an org-level technical strategist — helping advance Dropbox s mission to create a more enlightened way of working.</p> <p><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z">Our Engineering Career Framework is </span><span class="attrlink url author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"><a class="attrlink" href="https://dropbox.github.io/dbx-career-framework/" target="_blank" data-target-href="https://dropbox.github.io/dbx-career-framework/"><u>viewable by anyone outside the company</u></a></span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"> and describes what’s expected for our engineers at each of our career levels. Check out our blog post on this topic and more </span><span class="attrlink url author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"><a class="attrlink" href="https://dropbox.tech/culture/sharing-our-engineering-career-framework-with-the-world" target="_blank" data-target-href="https://dropbox.tech/culture/sharing-our-engineering-career-framework-with-the-world">here</a></span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z">.</span></p> </div> <h2>Responsibilities</h2> <ul> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qotv4kv2jz76zz80zvz68zz77zez73zqpoz7

Staff Fullstack Software Engineer, Core Performance

Don't apply unprepared