IT ServiceNow Platform Engineer, Senior (952)
Posted Sep 19, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time you got teams to take ownership of their configuration data.
What they are checking: Whether they can build accountability across groups that do not report to them, which decides if a CMDB stays accurate.
Tell me about a CMDB roadmap you built. How did you get leaders to fund and support it?
What they are checking: Whether they can tie CMDB work to business outcomes like faster incident resolution or better change risk.
What would you do
An incident team says the CMDB is wrong so they ignore it. What do you do?
What they are checking: Whether they treat lost trust as the real problem and fix the data that matters most to that team first.
Enterprise Architecture and IT Operations disagree on how to model a service. How do you settle it?
What they are checking: Whether they can facilitate a decision based on how the data will be used rather than who argues loudest.
About the work
Explain how you would align a CMDB to the Common Service Data Model, starting from a messy existing state.
What they are checking: Whether they have a practical plan for CSDM adoption that sequences work by value rather than trying to fix everything at once.
How do you measure CMDB health, and which metrics matter most to you?
What they are checking: Whether they track completeness, correctness and currency in ways that tie to whether people trust the data.
ServiceNow Discovery is creating duplicate CIs. How do you troubleshoot it?
What they are checking: Whether they understand identification and reconciliation rules well enough to fix duplicates at the source.
How would you model the relationship between a business application, its application services and the infrastructure underneath?
What they are checking: Whether they understand CSDM layers well enough to support impact analysis and incident routing.
How would you handle CIs that Discovery cannot reach, such as devices at remote branches?
What they are checking: Whether they know alternatives like service graph connectors, integrations or governed manual processes.
How do you decide which CI classes to extend or create, and when do you push back?
What they are checking: Whether they protect the data model from custom sprawl that makes upgrades and reporting harder.
What controls would you put in place to keep CMDB data from drifting after a cleanup?
What they are checking: Whether they build ongoing governance like audits, health rules and ownership rather than relying on one-time cleanups.
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Practice this out loudThe full job description
As published by ABC Supply.