Cybersecurity Admin Sec - SIEM  Administrator

Tata Consultancy Services · Tamil nadu, India

Greeting From TCS!!!

Role: Cybersecurity Admin Sec - SIEM Administrator

Experience: 8 to 12

Location: Chennai

SN

Responsibility of / Expectations from the Role

1

Conduct proactive threat hunting activities across endpoints, networks, cloud environments, and identity platforms. - Develop and execute threat hunting hypotheses based on threat intelligence, emerging attack trends, and organizational risks.

- Identify Indicators of Compromise (IoCs), Indicators of Attack (IoAs), and suspicious behaviors.

2

Analyze security events to detect stealthy, persistent, and advanced threats.

- Consume and operationalize cyber threat intelligence feeds.

3

Map adversary tactics, techniques, and procedures (TTPs) to the MITRE ATT&CK framework.

- Track emerging threats, vulnerabilities, and attack campaigns.

- Document hunting findings, attack patterns, and remediation recommendations.

- Present threat hunt outcomes to security leadership and stakeholders.

4

Collaborate with SOC, Incident Response, Vulnerability Management, Red Team, and Security Engineering teams.

Develop scripts and automation to improve threat hunting and investigation efficiency.

5

Continuously evaluate and improve security monitoring and detection coverage.

Contribute to purple team exercises and detection validation activities.

6

Enhance threat detection capabilities within SIEM, EDR, NDR, and XDR platforms.

7

Develop hunt queries using KQL, SPL, SQL, Sigma, YARA, or similar technologies.

8

Support incident response activities for malware infections, ransomware, insider threats, credential compromise, and APT attacks.