Sr. Manager ServiceNow CMDB & Asset Governance

Legend Biotech is a global biotechnology company dedicated to treating and, one day, curing life-threatening diseases. Headquartered in Bridgewater, New Jersey, we are advancing the next generation of cell therapy through a portfolio of innovative technologies, including autologous, allogeneic, and in vivo cell therapy approaches. Our research spans chimeric antigen receptor T-cell (CAR-T), T-cell receptor (TCR-T), natural killer (NK) cell-based therapies, and other emerging platforms designed to transform the treatment of serious diseases. From our global network of research and development sites, we are committed to discovering and developing safe, effective, and cutting-edge therapies for patients worldwide. Legend Biotech entered into a global collaboration agreement with Johnson & Johnson to jointly develop and commercialize CARVYKTI® (ciltacabtagene autoleucel; cilta-cel). Through this strategic partnership, we combine complementary expertise and capabilities to advance innovative immunotherapies for patients living with multiple myeloma. Legend Biotech is seeking a Sr. Manager ServiceNow CMDB & Asset Governance as part of the Information Technology team based in Bridgewater, NJ. Role Overview The Sr. Manager ServiceNow CMDB & Asset Governance is a critical technical role responsible for the integrity, accuracy, and governance of the Configuration Management Database (CMDB) and IT Asset Management (ITAM) processes within Legend's ServiceNow environment. This role owns the end-to-end CMDB lifecycle, from automated device discovery via Microsoft Intune Graph API integration to CI class governance, hardware asset tracking, and compliance reporting. The ideal candidate brings strong API expertise, deep knowledge of Microsoft Intune and Microsoft Entra ID, and proven experience maintaining enterprise-grade CMDB data quality in regulated environments driving standardized, automated lifecycle processes to reduce manual effort and improve scalability. Key Responsibilities Lead the stabilization and transformation of CMDB and IT Asset Management processes within ServiceNow. The role focuses on improving data quality, governing multiple data sources (Discovery, Intune, and manual inputs), establishing sustainable ownership and lifecycle management. Deep knowledge of the CMDB data model, CI class hierarchy, IRE (Identification & Reconciliation Engine), Discovery patterns, probes, sensors, and service mapping. Experience with CSDM (Common Service Data Model) alignment. Own and maintain the ServiceNow CMDB (Polaris) across all CI classes, compute, network, application, cloud, and mobile. Ensuring data accuracy, completeness, and health. Administer CMDB identification rules, reconciliation policies, and deduplication logic to prevent duplicate or orphaned CI records. Execute and manage Data Manager policies for bulk CI updates, retirement, deletion, and archival. Create and maintain CMDB queries, Dynamic CI Groups, and health dashboards for CI class owners, analysts, and management. Ensure the CMDB is updated upon successful change implementation and reflects accurate service-impact data. Ability to design, deploy, and manage Service Now MID Server clusters across network segments. Deep knowledge of ECC queue processing, MID Server capabilities (Discovery, Orchestration, Event Management), upgrade procedures, credential stores, and SSL/TLS configuration. Must be able to diagnose MID Server connectivity failures, probe timeouts, and ECC queue backlogs independently. Build a trusted CMDB & IT Asset Governance foundation that enables reliable operations, decision-making, and audit readiness. Manage the full hardware asset lifecycle, procurement, allocation, assignment, maintenance, and retirement,  within ServiceNow alm_hardware and cmdb_ci_hardware tables. Maintain accurate asset records including ownership, financial data, stockroom location, support accountability, and legal entity assignment. Govern the three-tier asset onboarding model used at Legend Biotech: Automatic pull from Microsoft Intune (First Preference) ESC catalog item–driven ITAM admin updates (Second Preference) Direct CMDB/asset table updates by ITAM admins (Third Preference) Manage asset offboarding and state transitions through ServiceNow SCTASK resolver workflows. Proficiency in Microsoft Endpoint Manager / Intune device inventory, compliance policies, and Graph API. Ability to build automated sync pipelines that populate and reconcile ServiceNow CMDB hardware CIs from Intune data. Own and maintain the Microsoft Intune Graph Connector Plugin (sn_intune_integrat) integration within ServiceNow, including: Scheduled imports from Microsoft Graph API  Staging table management (sn_intune_integrat_computer) Transform maps to cmdb_ci_computer CMDB records. Manage Entra App Registration authentication for Graph API connectivity. Monitor and resolve integration failures, data sync gaps, and field mapping issues between Intune and CMDB. Maintain field mappings including deviceName, serialNumber, operatingSystem, userPrincipalName, chassisType, and discovery source (SG-Intune). Collaborate with the Identity team to ensure accurate user-to-device and user-to-CI associations via Entra ID sync into ServiceNow sys_user table. Support and maintain Entra ID → ServiceNow field mapping and dynamic reference table updates (Department, Cost Center, Country, Company). Ensure Entra App Registration, OAuth, and REST Message configurations remain functional and secure for CMDB and asset data flows. Proficient in Table API, Aggregate API, Import Set API, Attachment API, and Scripted REST API development. Must be able to design authentication flows (OAuth 2.0, Basic, mTLS), build payload transformation logic in server-side JavaScript, and implement robust error handling and retry patterns. Design, build, and maintain REST API integrations between Service