Title: OT Threat Hunter & Detection

Location: Mumbai / Bangalore

Exp: 8-16 Yrs

Job Description:

Key Responsibilities
- OT Threat Hunting
- Conduct proactive threat hunting across OT and ICS environments.
- Develop threat-hunting hypotheses based on threat intelligence, attack techniques, asset criticality and known vulnerabilities.
- Identify unauthorised assets, abnormal communications, unusual access patterns, protocol misuse and suspicious lateral movement.
- Investigate activity affecting HMIs, engineering workstations, historians, domain infrastructure, remote-access systems and industrial network zones.
- Analyse packet captures, network flows, authentication logs, firewall logs, endpoint telemetry and OT security-monitoring data.
- Identify indicators of compromise and suspicious behaviour associated with industrial threat actors.
- Map findings to MITRE Telecommunication&CK; for ICS and MITRE Telecommunication&CK; Enterprise where applicable. Detection Engineering.
- Develop and validate OT-specific detection use cases and analytics.




- Create investigation procedures, hunting queries, alert-triage guides and response playbooks.
- Review existing OT monitoring coverage and identify detection gaps.
- Tune security alerts to improve detection quality and reduce unnecessary false positives.
- Establish baseline communication patterns for critical industrial assets and network zones.
- Develop detection logic for: o Unauthorised asset connections o Unexpected protocol usage o Current or abnormal communication paths o Suspicious remote access o Credential misuse o Lateral movement o Engineering-workstation anomalies o Changes to PLC or controller communication •
- Support purple-team exercises by validating whether simulated attack activity is detected and investigated effectively. Alert Investigation and Incident Support
- Analyse and triage alerts generated by OT IDS, NDR, SIEM and endpoint-security platforms.
- Correlate alerts across IT and OT systems to identif

📌 OT Threat Hunter (Mumbai)
🏢 NR Consulting
📍 Mumbai