Software Engineer, Backend (All Teams)
Core
Building and maintaining large-scale 24x7 global infrastructure systems for DoorDash's 3-sided marketplace of Consumers, Merchants, and Dashers.
Role type
Backend Engineer (Product & Product Platform)
Builds
Large-scale web applications and backend services supporting product functionality
Domain
Logistics / On-demand delivery / Distributed systems
Deliverable
production ML models | product features | infrastructure
Required skills
Backend tech stacks, AI coding tools (Claude Code, Codex, Cursor), Service-oriented architecture, REST API design, SQL/NoSQL databases, System scalability analysis
Preferred skills
Microservice architecture transition, Modern web stacks (HTTP, REST), Unit testing
Technologies
Postgres, Redis, Elasticsearch, RabbitMQ
Responsibilities
Develop and release large-scale web applications, Define backend architecture and tech stack, Improve performance, reliability, scalability and security, Transition monolithic codebase to microservices
Seniority
Mid-level (2+ years experience)