Software Engineer, Traffic

Persona

1d•$130,000 - $220,000

About The Position

Persona is seeking a Software Engineer to join their Edge team. This team owns the full traffic path, from the first packet leaving clients through their Cloudflare-backed ingress and onward across the service mesh. The role involves owning edge networking configuration, evolving the ingress layer, managing DNS, building network-layer observability, supporting regional expansion, and helping define the team's practices and technical standards. This is an opportunity to be one of the first engineers on a new team with a clear mission and real ownership, shaping the future of Persona's traffic layer.

Requirements

Experience building and shipping production services in a polyglot environment (Go, TypeScript, or similar).
Experience diagnosing production issues at the network layer, including understanding how proxies and load balancers can obscure the real source of a problem.
Kubernetes networking in practice: ingress controllers, DNS, network policies.
Manages infrastructure as code in practice.
Experience building internal platforms or tools with a track record of driving adoption across engineering teams.

Nice To Haves

Cloudflare (Workers, WAF, Access, or Tunnel)
Istio or another service mesh in a multi-cluster environment
GKE or managed Kubernetes at scale
Ruby or Rails (we integrate with Ruby systems)
A “hacker’s heart” for prototyping new ideas and ways of operating

Responsibilities

Own edge networking configuration: routing, WAF policy, rate limiting, certificate management, driving toward a model where engineers ship traffic changes without waiting on infra.
Evolve the ingress layer (controllers, lifecycle, policy, Ingress API) so inbound traffic is reliable, observable, and self-service.
Manage DNS across internal clusters and external zones so name resolution is invisible by design.
Build network-layer observability: latency, error rates, routing visibility that surfaces problems before they become incidents.
Support Persona's regional expansion by extending networking into new geographies and ensuring regional expansion is scalable, performant, and maintainable.
Help define the team's practices and technical standards, including SDLC, usage of AI tooling, static analysis, chaos engineering, and usage of simulation.