Software Engineer, Traffic

DoorDash USA•Seattle, WA

1d•$130,600 - $285,000•Hybrid

About The Position

We are looking for experienced engineers to join the Traffic team and help build the next generation of DoorDash’s Traffic platform. Our team develops and operates the critical traffic infrastructure that powers communication between thousands of services across multiple regions, as well as the ingress systems that handle external traffic entering the DoorDash platform. You will work on core components of our traffic stack, including the Envoy Data Plane, xDS control planes and proxyless architecture. This role sits at the intersection of distributed systems, networking, and large-scale infrastructure. This role includes designing, building, and maintaining systems that must operate reliably and efficiently across some of the most critical and latency-sensitive workloads at DoorDash. You will report to the Engineering Manager of the Traffic Team within the Infrastructure organization. This role is hybrid working from one of our engineering hubs based in the San Francisco Bay Area, Seattle or New York.

Requirements

5+ years of experience as a software engineer in infrastructure, networking, or platform engineering.
Experience with Programming Languages like Go, C++, Python or Rust
Experience with AWS and Kubernetes
Background working on and debugging high-QPS or latency-sensitive systems
You are curious, independent, ambitious, and can find solutions and make progress in an ambiguous and challenging environment
You have proficiency in using AI coding tools (e.g., Claude Code, Codex, Cursor) in the full software development lifecycle, including designing, generating code, testing, monitoring and releasing software

Nice To Haves

Experience with service mesh technologies such as Envoy, Istio or Linkerd
Familiarity with xDS or control plane architectures
Solid understanding of networking fundamentals like TCP/IP, HTTP, HTTP/2, gRPC, Load Balancing
Experience building RPC frameworks or client-side networking libraries
Experience with AWS Networking Primitives like Load Balancers, Privatelink, etc.
Experience with Infrastructure as Code tooling like Terraform
Experience with Gitops delivery tooling such as ArgoCD, Helm, Atlantis.

Responsibilities

Design and build large-scale distributed systems that are high RPS and latency sensitive
Troubleshoot, debug, and fix issues that affect production and maintain our SLAs
Work collaboratively with other platform and product engineers to deliver on feature requests and solve their problems
Find ways to improve the team’s productivity and operational capabilities through the use of automation, AI tools, and other avenues
Participate in a shared on-call and support rotation and lead production investigations and incidents