Department: Information Security / Security Operations Center (SOC)
Designation: L2 Information Security
Reporting To: SOC Manager
Experience: Minimum 5 years in a SOC / Security Operations environment
Work Pattern: Rotating shift model (24x7)
Work Location: Ambattur, Chennai
Role:
We are seeking an experienced Security Analyst (Tier 2) to join our Security Operations Center (SOC) team. The successful candidate will serve as a subject matter expert in enterprise security monitoring, responsible for the detection, investigation, and response to cybersecurity incidents and threats across a large-scale, complex enterprise environment.
Responsibilities:
- Manage and maintain the SIEM platform — ensuring log ingestion health, data source onboarding, parser validation, and rule accuracy.
- Lead and coordinate Tier 2 incident response activities — containing, eradicating, and recovering from security incidents in line with the SOC IR playbook and defined SLAs.
- Document all investigation steps, findings, evidence, and actions taken accurately within the ITSM / ticketing system (e.g. ServiceNow, Jira).
- Perform root cause analysis (RCA) on significant incidents and contribute lessons learned to post-incident review reports.
- Develop, tune, and maintain detection rules, correlation rules, and dashboards to improve coverage across the MITRE ATT&CK framework.
- Identify log source gaps and work with IT and infrastructure teams to onboard missing data sources into the SIEM.
- Automate repetitive triage tasks through SOAR playbooks (e.g. Cortex XSOAR, Sentinel Logic Apps) to improve analyst efficiency and reduce MTTD/MTTR.
- Monitor and investigate endpoint telemetry using EDR platforms (e.g. CrowdStrike Falcon, Microsoft Defender for Endpoint, SentinelOne) to detect malicious activity including malware, ransomware, and living off-the-land (LotL) attacks.
- Analyse firewall logs and network traffic data (Palo Alto, FortiGate, Cisco ASA, Check Point) to identify suspicious traffic patterns, policy violations, and network-based threats.
- Investigate alerts originating from IDS/IPS systems, web proxies, DNS security platforms, and network detection and response (NDR) solutions.
- Consume and operationalize threat intelligence feeds (commercial and open-source) — triaging IOCs, enriching alerts, and updating blocking lists in SIEM, firewall, and EDR platforms.
- Track active threat campaigns, adversary groups, and CVEs relevant to the organization's sector and technology stack.
- Collaborate with IT, infrastructure, and engineering teams on threat remediation
Qualification:
- Any degree in information technology specialization in Cyber Security/ Forensic, computer science, Information Technology
- 5 to 7 years of experience working in a 24x7 Security Operation Center (SOC) environment.
- Hands-on experience working with any of the SIEM tools (Splunk, Microsoft Sentinel, or QRadar)
- EDR expertise (CrowdStrike Falcon, Microsoft Defender, SentinelOne, or Cortex XDR)
- Relevant certifications such as CEH, CHFI, COMPTIA +, GCIA, GCIH, Splunk, Elastic, Microsoft Sentinel, QRadar, or equivalent.
