Principal Software Engineer, Core Sharing & Collaboration

As a Principal Engineer at Dropbox, you will own company-critical, loosely defined technical problems with multi-year impact, operating at the intersection of technology, product, business strategy, and applied AI. You will define long-term technical direction for customer-facing experiences used by millions, identifying where AI meaningfully improves customer value and translating evolving business context and industry advances into durable, multi-area strategies and roadmaps. You will remain hands-on in software development where it provides the greatest leverage, influence across organizations, set foundational architecture, drive execution standards, and lead the responsible introduction and adoption of AI across product capabilities and engineering workflows.

• Own and drive technical outcomes across multiple teams and organizations, delivering company-critical customer and business impact at scale.
• Define long-term technical strategy and partner with senior Product and Engineering leaders as the technical owner for the most important company objectives.
• Tackle the most ambiguous and far-reaching technical and product problems, shaping what the company builds as much as how it builds it.
• Remain deeply hands-on in software development, owning and implementing the most critical, complex, and foundational parts of the system where leverage is highest.
• Influence and align roadmaps across organizations, resolving structural bottlenecks and changing how Dropbox builds and operates.
• Architect and evolve foundational systems (frontend and backend) and platforms that enable new product capabilities and operate reliably at the scale of hundreds of millions of users.
• Model exceptional technical judgment and execution rigor, setting and sustaining high engineering standards across a distributed, virtual environment.
• Drive AI adoption both to increase productivity and to produce AI-based features.

• Advanced degree in Computer Science or related technical field, or equivalent industry experience demonstrating deep technical mastery.
• 15+ years of experience designing, building, and evolving large-scale software systems with sustained impact across multiple teams or organizations.
• Demonstrated success operating at a Principal level, owning company-critical technical problems and influencing long-term technical direction.
• Strong experience building consumer-facing products at scale, with deep understanding of user experience, performance, reliability, and operational excellence.
• Broad and deep technical expertise across multiple domains, including several of frontend, mobile, search, databases, storage systems, concurrency, and distributed systems.
• Practical experience applying modern ML, LLM-based APIs, and agentic frameworks in production systems, with sound judgment around quality, cost, and risk.
• Ability to communicate complex technical concepts clearly and persuasively to senior engineering, product, and executive audiences.

• Experience defining and scaling company-wide platforms or architectural standards adopted across multiple organizations.
• Proven track record of leading the introduction of new technologies such as AI or ML into core products or engineering workflows with durable impact.
• Experience operating in highly distributed, virtual-first engineering organizations at global scale.

Canada Pay Range: $249,700—$337,900 CAD