Dhruv Chandhok
Work
  • 2026 - Present
    Emergent
    Enterprise Platform (B2B)
    • Lead the engineering effort to build Emergent’s enterprise (B2B) offering on top of a consumer product, turning sales-committed features into a shippable platform.
    • Built the enterprise foundation: role-based access control (RBAC), SSO, and an org/tenant admin panel.
    • Architected the VPC deployment model, splitting the stack into a control plane and a customer-hosted data plane so enterprise data and agent workloads run inside the customer’s own infrastructure.
  • 2025 - 2026
    Uber
    Order Platform
    • Architected and launched a concurrent Cadence-based pipeline for TB-scale historical order data, cutting runtime from 55+ minutes to 12-16.
    • Identified an N+1 fan-out pattern baked into a live order-processing workflow (one activity per order, 600+ sequential DB calls) and replaced it with a single-pass design, taking execution reliability to 100%.
    • Designed a benchmarking framework (controlled parallelism, checkpointing, metrics-driven tuning) to choose production concurrency strategies.
  • 2019 - 2024
    Google
    Workspace, Enterprise Licensing
    • Led a zero-downtime, backward-compatible migration of the Workspace entitlement backend (the source of truth for licensing and access control, 60K+ QPS) to a regionally-sharded Spanner architecture.
    • Designed the migration as a shadow-write plus streaming-backfill flow (Dataflow + Pub/Sub) with versioned contracts and regional fallback, after ruling out flag-based and dual-write approaches as too risky at that scale and compliance bar.
    • Built a disparity-detection tool comparing legacy vs new contract views across tenants to catch edge cases before customers did; landed the cutover with strong consistency, zero customer impact, and propagation lag cut from 24 hours to under 15 minutes.
    • Reworked the SKU-upgrade buyflow with A/B experimentation, cutting admin drop-off from 66% to 43%.
  • 2016 - 2019
    Amazon
    Supply Chain Optimization (SCOT)
    • Built the backend for the Merchandising Financing Platform (MFP) that Vendor Managers used to allocate budgets across product groups.
    • Designed the mechanism that preserved manual overrides through the monthly plan refresh, protecting data integrity.
    • Added an auditing system for MFP overrides to make budget changes transparent and traceable.