Job Title: Senior Engineer – OT, IIoT and ISO Compliance

Location: Prithla, Palwal, Haryana

Budget: 08 - 10 LPA

Department: IT Service Center

Job Summary:

This role is pivotal in ensuring robust security, compliance, and operational excellence across the entire Operational Technology (OT), Industrial IoT (IIoT), and IT/OT convergence landscape. The engineer will lead lifecycle management, integration, and risk mitigation strategies while aligning with global standards such as ISO 27001, ISA/IEC 62443, and local data protection laws (e.g., DPDP). The engineer will lead technical initiatives, audits, and lifecycle management of OT/IIoT assets, while coordinating with global teams and local stakeholders.

Core Responsibilities:

OT Infrastructure & Lifecycle Management

• Manage legacy and modern OT assets including PLCs, SCADA, HMIs, mGuard firewalls, and

Windows XP-based systems.

• Oversee patching mechanisms (e.g., Ivanti) for OT systems and coordinate extended support for EoL assets.

• Lead segmentation and retrofit projects using secure zoning architectures.

• Maintain detailed asset inventories and lifecycle documentation for audit readiness.

IIoT Systems & Integration

• Design and deploy IIoT solutions for predictive maintenance, real-time monitoring, and analytics.

• Integrate IIoT sensors and gateways with existing OT systems and cloud platforms.

• Ensure secure data transmission and storage across IIoT networks using encryption and access

control.

• Collaborate with production and automation teams to optimize IIoT deployments for operational

efficiency.

Security & Compliance

• Implement OT security controls aligned with ISA/IEC 62443, ISO 27001, and corporate policies.

• Coordinate OT security audits, prepare documentation (e.g., BIA, asset lists, emergency plans), and respond to findings.

• Ensure physical and environmental security of OT environments.

• Monitor vulnerabilities (e.g., Windows 10 EOL) and isolate non-compliant systems.

• IT/OT Convergence & Risk Management

• Conduct risk assessments and define mitigation strategies for OT/IIoT systems.

• Collaborate with global teams to implement centralized services and policy rollouts.

• Serve as liaison between IT, production, and facility teams for compliance and incident response.

Audit, Documentation & Reporting

• Maintain compliance documentation for ISO audits and internal governance reviews.

• Prepare and submit reports for weekly/monthly IMS progress, OT emergency drills, and asset

lifecycle, project status.

• Lead internal reviews and participate in global audit coordination with Corporate Audit teams.

Required Qualifications:

• Bachelor's degree in Engineering, Computer Science, or related field.

• 5+ years of experience in OT/IIoT systems and cybersecurity.

• Strong knowledge of ISA/IEC 62443, ISO 27001, NIST SP 800-82.

• Experience with SCADA, PLCs, HMI, mGuard, and IIoT platforms.

• Familiarity with risk frameworks and audit processes.

Preferred Skills

• Strong project management, documentation, presentation and audit coordination capabilities.

• Strong analytical and problem-solving abilities.

• Excellent communication and documentation skills.

• Ability to work across global teams and manage cross-functional initiatives.

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