OT Analyst

UST; Thiruvananthapuram; On-site; INR 1,500,000 - 2,500,000; Full time

Job summary

UST in India seeks an OT Security Engineer with strong infrastructure knowledge to support Threat and Vulnerability Management across OT environments. You will secure OT systems, identify vulnerabilities, and ensure compliance with cybersecurity standards.

Responsibilities include OT vulnerability scanning and remediation tracking, secure configuration and patch management of OT assets, and deploying security controls for ICS/SCADA and PLCs.

Qualifications

• OT security experience across OT infrastructure and ICS/SCADA environments.
• Strong understanding of ICS/SCADA and network segmentation.
• Hands-on with Threat and Vulnerability Management tools and processes.
• Experience with Defender for IoT, SIEM, and OT endpoint protection.

Responsibilities

• Support TVM activities across OT environments, including vulnerability scanning and remediation tracking.
• Collaborate with infrastructure teams to ensure secure configuration and patch management of OT assets.
• Analyse security incidents and respond to OT-related threats.
• Implement and maintain security controls for ICS/SCADA systems, PLCs, and other industrial devices.
• Develop and maintain asset inventories and risk profiles for OT environments.
• Work with IT/OT teams to align security strategies across domains.
• Assist in deployment and tuning of security tools (Defender for IoT, Nessus, Qualys).
• Document vulnerabilities, remediation status, and risk posture for stakeholders.
• Stay updated on emerging OT threats and mitigation techniques.

Skills

OT security

ICS/SCADA knowledge

TVM familiarity

communication

Tools

Defender for IoT

Nessus

Qualys

SIEM

Job description

Role Description

Role Overview: We are seeking a skilled OT Security Engineer with strong infrastructure knowledge to support our Threat and Vulnerability Management (TVM) initiatives across Operational Technology environments. The ideal candidate will be responsible for securing OT systems, identifying and mitigating vulnerabilities, and ensuring compliance with cybersecurity standards.

Key Responsibilities

• Support TVM activities across OT environments, including vulnerability scanning, assessment, and remediation tracking.
• Collaborate with infrastructure teams to ensure secure configuration and patch management of OT assets.
• Analyse and respond to security s and incidents related to OT systems.
• Implement and maintain security controls for ICs/SCADA systems, PLCs, and other industrial devices.
• Develop and maintain asset inventories and risk profiles for OT environments.
• Work with cross-functional teams to ensure alignment between IT and OT security strategies.
• Assist in the deployment and tuning of security tools (e.g., Defender for IoT, Nessus, Qualys).
• Document and report vulnerabilities, remediation status, and risk posture to stakeholders.
• Stay updated on emerging OT threats, vulnerabilities, and mitigation techniques.

Required Skills & Experience

• 4+ years of experience in OT security, OT infrastructure, and related cybersecurity roles.
• Strong understanding of industrial control systems (ICS), SCADA, and network segmentation.
• Hands-on experience with TVM tools and processes.
• Familiarity with Microsoft Defender, SIEM, and endpoint protection in OT environments.
• Knowledge of network protocols used in OT (Modbus, DNP3, OPC, etc.).
• Experience with firewalls, IDS/IPS, and network monitoring tools.
• Ability to interpret CVEs and coordinate remediation with engineering teams.
• Excellent communication and documentation skills.

Skills

• cybersecurity
• information security
• crowdstrike
• log analysis
• malware analysis,