DoorDash

Software Engineer • Jun 2025 - Present

Summary

  • Software Engineer (E4) at DoorDash in the Core Merchant Experience org in Toronto, building merchant-facing products.
  • Technical lead migrating merchant services from Kotlin microservices to a Go-based GraphQL platform.
  • Built experiment infrastructure for a merchant rewards program, with budget protection and automated payouts.
  • Full-stack owner of a merchant quality tier system, shipped to GA with staged rollouts.
  • Built shared platform components adopted across merchant engineering teams.
  • Led compute efficiency work across the org, significantly reducing infrastructure costs.
  • Built AI-assisted developer tooling adopted across the team.
  • On-call incident response across merchant services.

Technology used

Go
Kotlin
TypeScript
React
gRPC
GraphQL
Pinot
Snowflake
CockroachDB
Mohamed Tayeh

Mohamed Tayeh

Software Engineer at DoorDash