Senior Platform/DevOps Architect

Job description: Senior Platform/DevOps Architect

Role
summary: Technical owner of the target platform. Designs and builds the GitHub
Enterprise Cloud landing zone and the golden-path reusable workflow library
that every migrated repository consumes - the standardisation layer the whole
migration lands on.

Key
responsibilities:

• Design the GHEC
  foundation: org/repo topology, SSO/SCIM identity integration, Rulesets,
  branch protection, CODEOWNERS strategy, and marketplace/actions allowlist
  governance.
  
• Author and
  version the golden-path reusable GitHub Actions workflows per archetype
  (Java/Maven, Node/TS, Python, container, Terraform, etc.), consumed by
  reference (uses: - never copied - with drift detection.
  
• Design the
  self-hosted runner topology (residency-aware, Azure/AWS network routes)
  and integrate enterprise tooling: GHAS (secret/code scanning),
  Snyk/Sonar-class scanners, Vault/CyberArk, Artifactory.
  
• Define the
  Jenkins Actions conversion standards the AI agents implement: secrets
  re-binding, shared-library equivalence, trigger mapping, artefact handling
  (including Git LFS / artefact-store strategy for large in-repo binaries).
  
• Act as design
  authority on the bespoke long-tail - the complex pipelines agents can't
  fully convert - and review agent-generated PRs for architectural
  soundness.
  
• Partner with client platform/security teams; prepare the platform handover to client BAU.
  

Required
skills & experience:

• 12+ years
  platform/DevOps engineering; 4+ years deep GitHub Actions (reusable
  workflows, composite actions, self-hosted runners at scale).
  
• Expert Jenkins
  internals: declarative and scripted pipelines, shared libraries,
  multibranch, trigger graphs - and Bitbucket Server administration.
  
• Enterprise CI/CD
  architecture: promotion models, environment strategy, secrets management,
  policy-as-code.
  
• GHAS or
  equivalent AppSec tooling integration; IaC (Terraform) for platform
  provisioning.
  
• Strong written
  design skills - ADRs, standards, runbooks that survive handover.
  

Desirable: GEI migration
experience; Kubernetes; APRA-regulated environment exposure; contribution to
internal developer platforms / golden-path programmes.