Manager - OT

GRAMAX; Gurugram District; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

GRAMAX is seeking an OT Cybersecurity Specialist to lead assessments and hardening across ICS/SCADA environments in India. You will conduct asset discovery, vulnerability scans, risk assessments, and remediation roadmaps using IEC 62443, NIST standards, and industry best practices.

You will implement OT security tools (Nozomi Networks, Claroty, Tenable OT, SIEM, NAC), prepare executive reports, and collaborate with OEMs and system integrators to deliver secure OT solutions.

Qualifications

• Experience in OT cybersecurity assessments and governance.
• Ability to map security requirements to ICS/SCADA environments.
• Familiarity with OT network architecture and vulnerability assessment processes.

Responsibilities

• Conduct OT cybersecurity assessments in line with IEC 62443, NIST SP 800-82, and NIST CSF.
• Perform OT asset discovery, network reviews, vulnerability assessments, and maturity assessments.
• Develop remediation roadmaps and ensure regulatory/compliance alignment.
• Deploy and support OT security solutions and integrate with enterprise SOC/SIEM.
• Prepare assessment reports, risk registers, and governance documentation.
• Collaborate with OEMs, system integrators, and customer teams for delivery.

Skills

OT cybersecurity

IEC 62443

NIST SP 800-82

NIST CSF

Tools

Nozomi Networks

Claroty

Tenable OT

SIEM

NAC

Job description

Department / Sub-Department: Cyber Security

Key Responsibilities

• Conduct OT cybersecurity assessments in accordance with IEC 62443, NIST SP 800-82, NIST CSF, and other industry standards.
• Perform OT asset discovery, network architecture reviews, vulnerability assessments, and cybersecurity maturity assessments.
• Identify security gaps, assess cyber risks, and develop remediation roadmaps.
• Evaluate OT environments for compliance with applicable regulatory and security requirements.
• Deploy, configure, and support OT security solutions such as OT Asset Discovery, NIDS, EDR, OT Firewalls, Secure Remote Access (SRA), OT Network Monitoring, and Industrial SIEM.
• Integrate OT security tools with enterprise SOC and SIEM platforms.
• Support Proof of Concepts (PoCs), pilot deployments, and production implementations.
• Analyze and secure Industrial Control Systems (ICS), including SCADA, PLCs, RTUs, HMIs, DCS, and industrial communication protocols.
• Work with OT security technologies such as Nozomi Networks, Claroty, Tenable OT, SIEM, SOAR, NAC, Firewalls, and Threat Intelligence platforms.
• Prepare assessment reports, risk registers, executive summaries, remediation plans, and technical documentation.
• Develop OT cybersecurity policies, standards, procedures, and governance frameworks.
• Support OT cyber incident investigations, threat hunting, malware analysis, and incident response activities.
• Recommend containment, eradication, and recovery strategies for OT security incidents.
• Conduct customer workshops, technical presentations, and solution demonstrations.
• Gather customer requirements and recommend appropriate OT cybersecurity solutions.
• Collaborate with OEMs, system integrators, customer engineering teams, and internal stakeholders to ensure successful project delivery.
• Provide technical leadership, mentor junior analysts, and support project execution.