Job Title: Lead Engineer - SIEM & Detection Platforms
GCL:E
Introduction to role:
Are you ready to build and lead enterprise-grade detections that stop real attacks before they impact patients and critical operations? As Lead Engineer for SIEM and Detection Platforms in Chennai, you will develop methods to identify, investigate, and neutralize threats. These threats span cloud services, local infrastructure, and OT/ICS environments. Your work will enable our teams to move faster and more safely as we deliver life-changing medicines.
You will be the technical driver behind our detection strategy and content, elevating our platforms and practices while partnering with incident responders, threat intelligence, and engineering teams worldwide. Can you envision setting the standard for detection-as-code, scaling coverage across diverse technologies, and turning threat intelligence into high-fidelity signals that matter?
Accountabilities:
Detection Strategy and Leadership: Lead end-to-end detection engineering initiatives spanning threat coverage, crafting detection algorithms,



and efficacy validation across SIEM, EDR, NDR, and cloud-native services; ensure focus on the most significant threats and measurable outcomes.
Apply detailed approaches to detection engineering to improve defensive posture, reduce false positives, and accelerate threat identification. Adapt proven strategies to our enterprise context.
Enterprise Detection Content Ownership: Build, optimise, and govern the organization's detection content library, mapping coverage to adversary tactics, techniques, and procedures using frameworks such as MITRE ATT&CK.;
Platform Excellence and Tuning: Drive performance optimisation related to detection mechanisms and platform queries; balance sensitivity with operational efficiency to increase signal quality and reduce alert fatigue.
Provide technical oversight to external suppliers and platform vendors. Coordinate with SOC, incident response, and cyber threat analysi

📌 Lead Engineer (Chennai)
🏢 AstraZeneca
📍 Chennai