SIEM MS Sentinel Administrator

3 weeks ago

Noida, Uttar Pradesh, India True Talents Full time

Job Description : SIEM MS Sentinel Administrator

Job Type : Full-time, Payroll

Location : Onsite - Bengaluru / Noida

Duration : Long-term

Position Overview :

We are seeking an experienced SIEM MS Sentinel Administrator with 6+ years of experience in security monitoring, SIEM administration, and Microsoft Sentinel. The ideal candidate will have hands-on expertise in managing Sentinel environments, fine-tuning alerts, troubleshooting host non-reporting, and ensuring overall SIEM health and Responsibilities :

- Monitor host reporting status and raise support tickets for non-reporting hosts.

- Troubleshoot and resolve host non-reporting issues; perform remediation for non-compliance Sentinel agents.

- Collaborate with Cybersecurity teams to manage SIEM operations and incident response.

- Fine-tune deployed use cases to reduce false-positive alerts.

- Optimize log ingestion and perform log trimming at indexing to reduce daily Sentinel license utilization.

- Generate weekly reports as per client-defined formats.

- Monitor, respond, and resolve Sentinel-related tickets in a timely manner.

- Perform upgrades for Sentinel components including indexers, search heads, universal forwarders, and heavy forwarders.

- Manage Indexer Clustering and Search Head Clustering environments.

- Raise CRQ (Change Requests) for critical activities and maintain proper change management records.

- Perform regular health checks, backup checks, and validations of Sentinel components.

- Provide support during patching activities, including readiness to work off-hours (up to 3 times per month).

- Develop and maintain Standard Operating Procedures (SOPs), SMTDs, KB articles, and best practices documentation.

- Ensure compliance with security standards and assist in audits where Skills :

- Security Information and Event Management (SIEM) : Minimum 3 years experience.

- Microsoft Azure Sentinel : Minimum 2 years hands-on experience.

- Strong knowledge of Indexer Clustering and Search Head Clustering.

- Experience in Cybersecurity operations and SIEM tools.

- Proficiency in troubleshooting and resolving Sentinel component and agent Skills :

- Experience in log optimization and license utilization management.

- Familiarity with incident management, ticketing systems, and reporting frameworks.

- Strong communication and documentation skills.

- Ability to work independently and in collaboration with cross-functional :


- System and Network Administrators (Hardware Engineering)

- Information Security Analyst (Software and Web Development)

- Support Specialist (Customer Service and IT Operations)

- Administrator (Business Owner)

(ref:hirist.tech)

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