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Senior Software Engineer, Traffic

DoorDash

Salary not specified
Dec 3, 2025
Seattle, WA, US
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DoorDash is looking to build and maintain a 24x7, no downtime, global infrastructure system that powers its three-sided marketplace. The Traffic team specifically needs to design, build, and operate the networking and service mesh platform for reliable, secure, and efficient service-to-service communication.

Requirements

  • You have hands-on experience with service mesh or networking systems such as Envoy, Istio, Linkerd, or NGINX.
  • You are comfortable operating distributed systems and debugging complex traffic or reliability issues.
  • You have strong development skills in Go, Python, or similar languages.
  • You understand containerized environments and cloud infrastructure (AWS, GCP, etc.).
  • Have experience designing and running high-traffic, production-grade service communication systems.
  • Have strong knowledge of HTTP, TCP/IP, TLS, load balancing, and DNS.
  • Have experience with observability stacks (Prometheus, Grafana, OpenTelemetry).

Responsibilities

  • Operate and evolve DoorDash's service mesh, built on Envoy and modern cloud-native technologies.
  • Design and implement systems that improve reliability, observability, latency, and security for all service-to-service communication.
  • Develop automation and tooling to manage configurations, policy rollout, and traffic routing at scale.
  • Collaborate with Compute, Cloud Infra, and Product teams to ensure consistent networking abstractions and developer experience.
  • Drive best practices in API management, service discovery, load balancing, and fault tolerance.
  • Work in a 100% cloud environment (AWS, GCP) using technologies such as Envoy, Argo CD, Prometheus, Kubernetes, and Terraform.

Other

  • This role is 100% remote.
  • You have 5+ years of experience as a software engineer in infrastructure, networking, or platform engineering.
  • Are passionate about reliability, simplicity, and developer experience.
  • Have contributed to the CNCF or Envoy communities.