IT Systems Engineer, Enterprise SaaS — Senior/Staff

Anthropic•Seattle, WA

21h•Hybrid

About The Position

The Enterprise SaaS team owns the collaboration and productivity platforms every person at Anthropic touches every day — Google Workspace, Slack, and the surrounding ecosystem of enterprise tools. We're responsible for tenant-wide architecture, API-level integration, and the governance that keeps these platforms secure and scalable as the company doubles and doubles again. You'll make the architecture decisions that shape how thousands of people work: data governance for collaboration content, the application side of SSO and SCIM provisioning, and the integrations that fill gaps the vendors left open. You'll write Python against SaaS APIs where the admin console stops, and you'll be the final escalation tier when the vendor docs stop helping. The scope is the full collaboration stack — cloud infrastructure and endpoints live with separate teams, so this role goes deep rather than wide. If you've hit the ceiling of what the admin console can do and started solving problems in code, this is that job. You'll partner closely with IT Operations, Security, and the IAM team on the identity and access layer everything else depends on. This role is high-autonomy: you'll define tenant architecture, write the integrations, and represent the SaaS platform across IT. Your work will directly shape how we scale to AI Safety Level 4 and beyond.

Requirements

Have 8+ years building secure IT systems in complex environments — or, for Staff-level: have led cross-team projects that changed how an organization operates
Excel at solving ambiguous problems with multiple stakeholders
Communicate technical concepts clearly to any audience
View IT Engineering as requiring product engineering rigor
Successfully deliver complex projects from conception to production
Write clear documentation as a natural part of your workflow
Have deep, hands-on experience with at least one major enterprise platform — Google Workspace, Slack, Microsoft 365, or an enterprise identity provider — meaning you've gone past the admin console and solved problems in code
Have built integrations against SaaS APIs, not just configured through consoles
Have been the final escalation tier
Python programming against SaaS APIs — the bar is writing real integrations, not Terraform or one-off scripts
Google Workspace administration
Slack administration and APIs
Identity protocols (SAML, OAuth, SCIM)
SaaS API integration
Enterprise collaboration architecture
Microsoft 365 administration (Entra ID, Teams, SharePoint, Exchange Online)
Security and compliance frameworks

Nice To Haves

Have transformed traditional IT operations into engineering-driven organizations
Have built strong partnerships with Security and Engineering teams
Practice modern development methods (code reviews, testing, CI/CD)
Work effectively in distributed teams
Hold platform certifications (e.g., Google Workspace Administrator, Slack Certified Admin)
Have experience with Infrastructure as Code approaches to SaaS configuration
Have designed data governance or access controls for collaboration platforms
Have experience with SCIM provisioning and SSO federation from the application side
Have Microsoft 365 administration experience (Entra ID, Teams, SharePoint, Exchange Online) — we're primarily Google Workspace but Microsoft depth transfers and is increasingly relevant

Responsibilities

Own tenant-wide architecture for Google Workspace, Slack, and core collaboration platforms
Design compartmentalization and data-governance models that scale with the company
Build integrations and automation against SaaS APIs to automate provisioning and catch drift
Configure the application side of SSO connections and SCIM attribute mappings
Serve as the final escalation tier for platform issues Support can't resolve
Lead vendor relationships — roadmap influence, escalation paths, engineering-level dialogue
Partner with Security on SaaS hardening, third-party app governance, and compliance controls
Own platform configuration as code — auditable, repeatable, and version-controlled