ServiceNow developer interviews typically focus on both theoretical knowledge and practical coding skills across the platform's core development areas. Interviewers assess candidates on server-side scripting using GlideRecord APIs, client-side JavaScript implementation, REST API development, and modern automation tools like Flow Designer. Understanding of ServiceNow's MVC architecture, scoped applications, and performance optimization techniques are essential for mid to senior-level positions.

Technical interviews often include live coding challenges where candidates must write GlideRecord queries, create Script Includes for code reusability, or build client scripts for form validation. Advanced positions require knowledge of Integration Hub, custom REST endpoints, and complex business rule implementations. Candidates should be prepared to discuss ServiceNow best practices, update set management, and troubleshooting methodologies for production environments.

Behavioral questions typically explore experience with ServiceNow project lifecycles, collaboration with business stakeholders, and problem-solving approaches for complex platform customizations. Interviewers value candidates who can articulate technical solutions in business terms and demonstrate understanding of ITIL processes. Preparation should include reviewing recent ServiceNow releases, understanding new features in the latest platform versions, and practicing code optimization techniques.

Successful candidates combine strong JavaScript fundamentals with deep ServiceNow platform knowledge, including table relationships, ACLs, and workflow design patterns. Interview preparation should focus on hands-on coding practice, understanding ServiceNow's out-of-box applications, and staying current with platform evolution toward low-code development approaches and AI-powered features.