SIEM Architect

Required Technical Skill Set
Microsoft Sentinel SIEM Architect with robust expertise in Azure security technologies.

Desired Experience Range
10-15 YRS

Location of Requirement
Chennai

Desired Competencies (Technical/Behavioral Competency)
Must-Have
We are seeking an experienced Microsoft Sentinel SIEM Architect with strong expertise in Azure security technologies, AI-driven security (Azure OpenAI), and Microsoft Security Copilot. The ideal candidate will design, implement, and optimize modern cloud-native SIEM/SOAR solutions, while leveraging AI and automation to enhance threat detection, response, and SOC efficiency.

Good-to-Have
Use Azure OpenAI for threat analysis, summarization, KQL/playbook generation
Leverage Security Copilot for investigation and response
Build AI workflows using prompt engineering & automation

Responsibility of / Expectations from the Role
1
Design and implement end-to-end Sentinel architectures. Define ingestion, normalization (ASIM), and retention strategies. Architect multi-region & multi-tenant solutions.
2




Develop HLD & LLD documentation, Integrate Azure, M365, Defender, on-prem (Syslog/CEF), AWS, GCP.
3
Configure AMA, Event Hub, APIs, Logic Apps, Implement log filtering, transformation, enrichment.
4
Develop HLD & LLD documentation, Integrate Azure, M365, Defender, on-prem (Syslog/CEF), AWS, GCP
5
Custom Connector , Application log Source onboarding, Develop KQL-based analytics rules, Implement Fusion (ML) and NRT detections, Map to MITRE ATT&CK;, Tune alerts and reduce false positives.
6
Build Logic Apps playbooks, Automate triage, containment (IP/user actions), ticketing integration, Define automation lifecycle rules.
7
Design L1/L2/L3 SOC workflows, Define severity, escalation, classification, Support threat hunting & incident response.
8
Implement RBAC, PIM, Ensure ISO 27001, NIST, CIS compliance, Align logging with regulatory requirements.
9
Optimize ingestion filtering, Manage retention (hot/archive), Monitor

📌 SIEM Architect (Chennai)
🏢 Tata Consultancy Services
📍 Chennai