Senior Full Stack Engineer

SuperNinja is an AI workforce that plans, writes code, runs research and ships real work for customers. You would own the surface where people meet that agent — the thread, the workspace, the moment a task becomes a deliverable. It is the highest-visibility slice of the product and it changes weekly.

• Build enterprise identity end to end: SAML 2.0 / OIDC federation and SCIM provisioning against Entra ID, Okta and Google Workspace, wired into our organisation and seat model.

• Own the tenancy layer — organisations, seats, roles, entitlements, shared credit pools — and make it self-serve for admins instead of a support ticket.

• Build the audit and admin surfaces enterprise buyers ask for: access logs, session policy, de-provisioning that genuinely revokes.

• Partner with our forward-deployed and customer-success engineers on real rollouts. Success is a deployment that never needs us in the loop.

• 5+ years full-stack with real production exposure to authentication and authorisation — you have integrated an enterprise IdP and know why it is harder than the documentation suggests.

• Fluency across the stack: TypeScript/React front end, Python back end, and cloud identity primitives (Cognito or equivalent) underneath.

• Care for the unglamorous: migrations, edge cases, and the failure mode where a customer cannot log in on a Saturday.