Poojita Suri

Senior Software Engineer

Senior Software Engineer with 7+ years of experience building large-scale backend systems, commerce platforms, and highly available distributed infrastructure. Proven track record designing foundational platform capabilities, leading cross-functional technical initiatives, and shipping products operating at billion-dollar scale.

SystemsOwnershipReliability
Selected Impact
  • Gift Card Marketplace at $1B+ scale
  • Generalized dynamic pricing model
  • Fraud systems: 3DS, TTV, delayed delivery
  • First third-party gift card redemption
  • AI tooling for support + reliability ops
  • RBAC platform with two pending patents
  • Zero-downtime database migration
  • 6 mission-critical services at 99.999%+ SLA

Experience

  • Architected the core platform enabling virtual gift cards to integrate with DoorDash’s retail commerce ecosystem, solving challenges around customer-selected pricing and compatibility with existing catalog, checkout, and fulfillment infrastructure.
  • Designed and introduced a generalized dynamic pricing abstraction into DoorDash’s commerce platform, enabling customer-priced products such as gift cards and donations while maintaining compatibility with existing pricing systems.
  • Built scalable ingestion infrastructure for third-party gift card catalogs, contributing to the launch of DoorDash’s Gift Card Marketplace, now a $1B+ business.
  • Serve as technical lead for the Gift Cards platform, driving architecture, roadmap, and cross-functional execution; lead fraud initiatives by partnering with Risk to improve approval rates and reduce chargebacks and false positives through systems such as 3DS, TTV, and delayed delivery.
  • Built AI-powered internal engineering tooling, including an intelligent support responder and an automated reliability reporting pipeline for recurring org-wide engineering health reporting.
  • Leading development of DoorDash’s first third-party gift card redemption platform.
  • Designed and implemented core backend infrastructure for Twilio’s RBAC platform, resulting in two pending patents for identity and authorization innovations.
  • Led engineering efforts to migrate production databases from EC2-hosted infrastructure to managed storage with zero downtime and zero customer data loss.
  • Established operational ownership for six mission-critical services (>99.999% SLA), improving production reliability, observability, and deployment readiness.
  • Contributed to regionalization of Twilio Identity services to support global regulatory and geographic requirements.