Dropbox

Dropbox

Staff Fullstack Software Engineer, Core Performance

Remote (Worldwide)RemotePosted Today$204,900 – $277,200
Full TimeSeniorRemote

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Job Description

Role DescriptionAs 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 sur

Key Highlights

  • Drive performance improvement on the Dropbox web application as the first focus of the role — profiling React surfaces, producing flame graphs and heat maps, identifying the highest-impact opportunities, and shipping measurable improvements
  • Lead the performance initiative across iOS, Android, and desktop by coordinating with internal platform experts who own those clients — setting strategy, defining measurement standards, and driving execution rather than implementing every fix personally
  • Take performance improvements end-to-end: from measurement, to root-cause analysis, to shipped code changes, to validation in production telemetry
  • Build and own the measurement, instrumentation, and regression-detection systems that engineering teams across Core depend on to ship performant code
  • Write production code regularly — primarily JavaScript and React on the web, with backend work in Python and Go on the services those surfaces depend on

Qualifications

Required Qualifications

  • BS, MS, or PhD in Computer Science or a related technical field involving coding(e.g., physics or mathematics) or equivalent technical experience
  • Minimum of 12 years of experience as a software engineer with 3+ years serving as a Senior.
  • Demonstrated, hands-on experience driving measurable performance improvements in production web applications — including profiling JavaScript and React surfaces, identifying root causes through flame graphs, heat maps, traces, and RUM data, and shipping the fixes that moved the metric
  • Demonstrated experience using AI tooling to accelerate performance work — applying LLMs and AI-assisted workflows to profiling analysis, root-cause investigation, refactoring, or shipping performance fixes
  • Experience optimizing AI-assisted engineering workflows to improve the productivity of other engineers — selecting tools, defining patterns and guardrails, and measuring the impact on engineering throughput
  • Production experience with modern backend services in Python or Go that support consumer-facing client surfaces
  • Experience leading technical strategy on cross-cutting initiatives spanning multiple teams or surfaces, including writing design docs, defining architecture, and driving execution to measurable outcomes
  • Has worked on a consumer user-facing product(versus a platform team or developer-facing API-based product), and shipped changes that moved customer-visible metrics
  • Strong written and verbal communication skills, with a track record of influencing roadmaps and decisions outside their direct reporting line — including leading initiatives that depend on coordinating with platform owners they don't directly manage
  • Experience profiling and improving native iOS applications(Swift), including startup time, scroll performance, and memory behavior
  • Experience profiling and improving native Android applications(Kotlin), including startup time, scroll performance, and memory behavior
  • Experience profiling and improving desktop client applications, including startup, IPC, and resource usage
  • Experience building or owning performance regression-detection systems integrated into CI/CD
  • Experience with RUM telemetry pipelines, sampling strategy, and statistically rigorous comparison of performance data
  • Track record of mentoring senior engineers(Senior and above) and raising the technical bar across an engineering organization

Skills & Technologies

ReactPythonGoJavaScriptSwiftKotlin

About the Company

Dropbox

Dropbox

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Job Details

Employment Type

Full Time

Experience Level

Senior

Salary Range

$204,900 – $277,200

Location

Remote (Worldwide)

Work Mode

Remote

Posted

Today