Principal Software Engineer, InfraEng Platform Team

Seattle · Costa Mesa, CA (OC-00) · Seattle, WA (SEA-01) · USD 253,000-336,000 · 10+ years experience · Posted Sep 24, 2026

At a glance

You will be the first software engineer on the InfraEng Platform Team and one of the first in Infrastructure Engineering, taking ownership of a small existing codebase.
Part of your early work is deciding whether the codebase is the right foundation to extend or whether to replace it, and from there setting the architecture, engineering standards, and delivery practices.
This is a hands-on role where you will go deep into networking, systems, and cloud when the problem requires it, and your fingerprints will be on everything this team ships.

Evaluate the existing codebase and set technical direction: keep, extend, or rebuild.
Design and build the hub’s core: the APIs, services, and data models that expose infrastructure as self-service across AWS, Azure, and on-prem.
Decide where control planes and data planes separate, where they nest, and where they should not, and document the reasoning so others can extend it.
Define the contracts and patterns partner teams use to plug into the hub, then help them adopt those patterns.
Build a single identity and authorization layer (RBAC and ABAC) with a complete audit trail for every action the platform exposes.
Ship backend services and the console, CLI, and API surfaces users touch, utilizing Go, Python, or Java or the right tool for the job.
Turn common infrastructure requests into bounded self-service actions that take tickets off the critical path.
Establish the CI/CD pipelines, source control practices, and deployment safety controls for a codebase with many contributors.
Own what you build in production, including observability, on-call, incident response, and postmortems.
Partner with connectivity, backbone, cloud, and product teams on shared interfaces and influence their roadmaps without direct authority.

10+ years of software engineering experience, including building and operating platform or infrastructure software at scale.
Strong proficiency in Go, Python, or Java, or equivalent languages suited to systems and platform work.
Deep understanding of control plane and data plane design: desired state, reconciliation, failure isolation, and blast radius.
Strong hands-on AWS or equivalent major cloud providers, experience across compute, networking, IAM, storage, and managed Kubernetes.
Strong grounding in containers and ephemeral compute, such as Docker, Kubernetes, and immutable infrastructure patterns, or equivalent.
Experience shipping both backend services and user-facing surfaces (console, CLI, or API) for large and varied user bases.
A track record of designing CI/CD pipelines and branching and release strategies that keep deployments safe with many contributors.
Depth below the application layer in networking, systems, or cloud, and the willingness to learn the others.
High ownership and operational excellence, running what you build, measuring it, and fixing root causes.
Must be eligible to obtain and maintain a US Secret Security clearance.

Experience building or integrating with identity and authorization systems, such as OIDC, SAML, OPA, Cedar, or equivalent.
Experience implementing RBAC or ABAC models within a product or system.
Experience with Azure, on-prem, or equivalent environments, including abstractions that work across providers.
Experience with Kubernetes controllers or operators, Crossplane, or equivalent infrastructure abstraction frameworks.
Infrastructure as code at scale with Terraform, OpenTofu, or equivalent tools.
Familiarity with enterprise networking or backbone infrastructure and how platforms expose it to users.
Experience in regulated environments such as FedRAMP, DoD IL levels, CMMC, or equivalent.
Front-end experience with TypeScript and React, or equivalent, for console development.

Highly competitive equity grants included in the majority of full time offers
Comprehensive, competitive benefits package available at little to no cost to employees
Support in health, recovery, and other company-offered employee programs

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