Senior Platform Engineer – IAM, AI Gateways & Governance

Octoenergy; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Octopus Energy Group seeks an engineering professional to design and implement enterprise-grade identity, access, and governance across human users, systems, and AI agents. You will build production-grade platform controls, IaC, and secure pipelines while collaborating with data engineers, application builders, and stakeholders across Finance, Asset Management, and Fund Operations.

You will harden API gateways, implement token exchange, and ensure full auditability.

Qualifications

• Federated identity mastery: design and implement enterprise-grade federated identity, token exchange, access control & SCIM provisioning.
• Platform foundations: hands-on IaC (Terraform) and production CI/CD pipelines with environment promotion and release controls.
• API gateways: harden patterns for authentication, routing and rate limiting.
• Cloud & data environments: experience across Azure, AWS or Databricks ecosystems.
• Pragmatic mindset: autonomous engineer; translate architecture into practical code and communicate trade-offs clearly.
• Experience with AI gateways, LLM proxies or model-routing patterns.
• Observability tools for AI systems, vector databases, RAG pipelines, or non-deterministic monitoring.
• Policy-as-code, action logging, or AI kill switches implementations.
• Direct experience with Okta, ZScaler, Entra ID, Unity Catalog, or M365 migration environments.
• Background in regulated or high-governance industries; FinOps practices like token budgeting and usage attribution.

Responsibilities

• Build and maintain IaC (Terraform) across dev, test, and prod environments.
• Strengthen CI/CD practices in GitHub Actions with repeatable deployment patterns and release controls.
• Support architecture decisions by translating designs into maintainable engineering patterns.
• Design federated identity architectures with Okta, Entra ID, and ZScaler including SCIM provisioning.
• Harden API gateway controls: authentication, routing, rate limiting, policy enforcement.
• Work across Azure, AWS, or Databricks environments to support platform governance.
• Develop practical code with clear trade-offs and documentation for delivery squads.
• Enablement & integration: deploy vector databases and align with Databricks Unity Catalog governance.

Skills

Federated identity mastery

Platform foundations

API gateways

Cloud & data environments

Pragmatic mindset

AI gateways / model routing

AI observability tools

Policy-as-code / action logging

Okta / Entra ID / ZScaler / Unity Cat.

M365 migration environments

FinOps / token budgeting

Tools

Terraform

GitHub Actions

Databricks AI Search

Unity Catalog

Okta

Entra ID

ZScaler

Job description

Octopus Energy Group seeks an engineering professional to design and implement enterprise-grade identity, access, and governance across human users, systems, and AI agents. You will build production-grade platform controls, IaC, and secure pipelines while collaborating with data engineers, application builders, and stakeholders across Finance, Asset Management, and Fund Operations.

You will harden API gateways, implement token exchange, and ensure full auditability.