Senior ServiceNow CMDB/CSDM Architect
Location: Hybrid - Cambridge (2 days onsite per week)
Contract: 6 months
IR35: Inside IR35
Key Responsibilities
* Act as the technical design authority for a CMDB uplift programme.
* Assess and improve CMDB structure, CI classes, attributes, relationships, and CSDM alignment.
* Support service and application taxonomy remediation and simplification.
* Review and optimise ServiceNow IRE, source precedence, reconciliation rules, and data ownership.
* Define authoritative source rules and support integration onboarding controls.
* Review Discovery outputs and shape service to infrastructure mapping approaches.
* Advise on Service Mapping readiness, sequencing, and dependency modelling.
* Design technical controls for ownership, life cycle management, certification, and data quality.
* Guide duplicate, orphaned, and stale CI remediation activities.
* Define CMDB Health rules, dashboards, and data quality measures.
* Mentor internal ServiceNow specialists and provide knowledge transfer.
Required Experience
* Strong ServiceNow CMDB architecture experience.
* Hands on CSDM implementation, remediation, or uplift experience.
* CI class design and relationship modelling expertise.
* Strong knowledge of ServiceNow IRE, including identification rules, reconciliation rules, and source precedence.
* Experience with CMDB Health, duplicate management, and data quality controls.
* Experience with ServiceNow Discovery and discovered infrastructure relationships.
* Knowledge of Service Mapping concepts and implementation readiness.
* Experience with CMDB data source integrations.
* Experience implementing CMDB life cycle, ownership, and data quality controls.
* Experience working with existing CMDB environments requiring remediation and improvement.
* Ability to translate business and governance requirements into ServiceNow technical design.
Desirable Experience
* ServiceNow Certified Implementation Specialist certifications across Discovery, Service Mapping, ITOM, CMDB, or related modules.
* Experience with Service Graph Connectors.
* Cloud CMDB integration experience across Azure, AWS, or GCP.
* Experience with CNAPP or cloud security data feeding CMDB.
* ITIL SACM/ITSM experience.
* Experience in large enterprise or regulated environments.
* Experience mentoring internal teams during a transformation or uplift programme.