Dropbox
Senior
Re-architect Dropbox's Identity platform for a multi-product future
Dropbox is hiring a Senior Infrastructure Software Engineer to re-architect its Identity systems as the company shifts from a single-product to a multi-product company, covering distributed systems design, API design, phased data migrations, and persistent storage at high QPS. This interview targets deep infra engineering experience (8+ years) and probes distributed-systems tradeoffs, migration planning, and cross-team execution rather than general web development.
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What this interview tests
- Distributed systems and API design at scale
- Phased data migration planning and execution
- Persistent storage design tradeoffs
- High-QPS production service operations and on-call
- Identity & Auth concepts: OAuth, SSO, OIDC, SAML, MFA, RBAC
- Cross-team collaboration with multiple dependent product teams
Common question themes
Design or re-architect a large distributed system for a new multi-tenant use case
Plan and execute a phased data migration without breaking dependent services
Resolve conflicting requirements from multiple product teams depending on your platform
Debug or respond to an incident in a high-QPS production identity service
Reason about OAuth/SSO/SAML tradeoffs in a platform redesign