Senior Engineer - CMDB OT & Discovery

Job Title: Senior Engineer - CMDB OT & Discovery

GCL:D1/D2/D3

Introduction to role:

Are you ready to build a trusted view of Operational Technology that keeps manufacturing running and safeguards patient supply? Step into a visible, hands-on role where you connect discovery data, govern configuration quality and model IT-to-OT dependencies to strengthen operational resilience across our plants. Do you enjoy turning complex discovery signals into clean, decision-ready configuration models that leaders can rely on during incidents and change?

You will serve as the subject-matter guide for OT configuration data in ServiceNow. You will integrate authoritative sources like Claroty xDome. You will be responsible for crafting CI classifications and relationships. You will link assets to accountable owners, applications, and services. Working in a globally distributed team across the UK and our technology hub in Chennai, you will partner with OT cybersecurity, manufacturing application owners, site engineering, quality, enterprise architecture and network teams to ensure configuration data is accurate, auditable and actionable.

Accountabilities:

• OT Asset Lifecycle and Discovery: Maintain an accurate, reconciled inventory of in-scope OT assets in ServiceNow with owners, support groups, locations and lifecycle status aligned to authoritative sources. Define and enforce OT CI classifications, required attributes, relationships and onboarding standards. Drive discovery coverage across sites and zones using passive approaches and trusted OT platforms, avoiding unnecessary active scanning and respecting production constraints. Govern onboarding through retirement, validate stale or absent assets with owners and prevent reappearance of retired CIs while retaining required history.
• Claroty Integration and Reconciliation: Act as the CMDB specialist for Claroty xDome data. Maintain device-type, class and attribute mappings; monitor end-to-end data flow from discovery source through the engine handling recognition and matching to CI creation and updates. Investigate failed jobs, mapping errors, duplicates and source-to-target discrepancies; coordinate fixes and validate outcomes. Set source precedence to protect authoritative OT data and retain full traceability; collaborate with CMDB/integration engineering on complex IRE changes.
• IT-to-OT Dependency Modeling and Manufacturing Alignment: Build and maintain dependencies linking manufacturing services and applications, including PAS-X and TrakSYS, to OT systems, servers, databases, middleware, interfaces, networks, gateways, cloud/platform services and OT devices. Validate critical dependencies with application owners and OT engineers, identify and remediate gaps or orphaned assets and periodically certify high-impact relationships to enable reliable impact analysis.
• Data Quality and Governance: Own OT-specific data quality analysis for completeness, correctness, compliance, freshness and relationship coverage. Establish preventative controls, coordinate remediation with source owners and track exceptions and risks. Maintain documentation for sources, mappings, modeling decisions and controls, and provide configuration evidence for audit and regulatory requests.
• Collaborator Collaboration and Enablement: Translate OT needs into actionable CMDB requirements and working standards. Partner across cybersecurity, application ownership, network, infrastructure, cloud and asset management to align discovery, identification and reconciliation practices. Guide collaborators on CMDB guidelines to improve operational resilience and manufacturing impact analysis.

Essential Skills/Experience:

• Bachelor’s degree in Engineering, Computer Science or Information Technology, or equivalent experience.
• 6–9 years of experience in asset management, configuration management, CMDB, discovery or cyber visibility roles, including at least 3 years in OT or industrial environments.
• Hands-on experience with ServiceNow CMDB, including CI classes, attributes, relationships, the Identification and Matching Engine (IRE) and source reconciliation principles.
• Practical experience with OT asset discovery or inventory platforms, such as Claroty, and integrating authoritative inventory data into a CMDB.
• Understanding of IT/OT infrastructure, including Windows/Linux, networking, virtualisation, databases and industrial devices; familiarity with the Purdue model and ISA/IEC 62443 principles.
• Ability to model IT-to-OT and service dependencies from technical and process information and validate them with engineers and application owners.
• Understanding of ITIL Configuration Management and Change processes, with respect for OT safety, production constraints and controlled discovery practices.
• Strong analytical, fix, communication and stakeholder-engagement skills, including independent investigation of complex cross-platform configuration and data-quality issues.

Desirable Skills/Experience:

• Experience with Claroty xDome/CTD, ServiceNow Discovery, Operational Technology Management, Service Graph Connectors, IntegrationHub ETL and the Common Service Data Model (CSDM).
• Experience with manufacturing execution systems (MES), such as PAS-X or TrakSYS, and familiarity with programmable logic controllers (PLCs), SCADA, distributed control systems (DCS) and historians.
• Experience in pharmaceutical, life sciences or other regulated manufacturing environments, including GxP validation and change-control practices.
• Experience working across cultures and time zones in a Global Technology Centre operating model, with familiarity with Agile and Scrum methodologies.

When we put unexpected teams in the same room, we unleash bold thinking with the power to inspire life-changing medicines. In-person working gives us the platform we need to connect, work at pace and challenge perceptions. That's why we work, on average, a minimum of three days per week from the office. But that doesn't mean we're not flexible. We balance the expectation of being in the office while respecting individual flexibility. Join us in our unique and ambitious world.

Why AstraZeneca:

Here, technology directly enables the discovery, development and delivery of life‑changing medicines, and your work on OT configuration will help keep critical manufacturing running safely and efficiently. You will collaborate across disciplines and geographies, experimenting with modern platforms like ServiceNow and leading OT discovery tools, and benefit from the scale, investment and freedom to solve problems that few companies can tackle. We bring unexpected teams together to spark bold ideas, value patience alongside ambition and back you to learn continuously, from hackathons to hands-on delivery. Your contribution will improve real-world outcomes for patients while advancing a data- and AI-enabled technology environment.

Call to Action:

Shape the backbone of our manufacturing resilience and make your expertise count—send your application today to lead how OT data becomes trusted action.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

Date Posted

Closing Date

AstraZeneca embraces diversity and equality of opportunity.  We are committed to building an inclusive and diverse team representing all backgrounds, with as wide a range of perspectives as possible, and harnessing industry-leading skills.  We believe that the more inclusive we are, the better our work will be.  We welcome and consider applications to join our team from all qualified candidates, regardless of their characteristics.  We comply with all applicable laws and regulations on non-discrimination in employment (and recruitment), as well as work authorization and employment eligibility verification requirements.