ARCHITECT - IOT Security

Happiest Minds Technologies; Bengaluru; On-site; INR 2,500,000 - 4,500,000; Full time

Job summary

Happiest Minds Technologies is seeking an experienced OT Security Professional in Bengaluru to safeguard ICS/SCADA environments by implementing risk assessments, network segmentation, and security zoning. The role emphasizes industrial IDS deployment and architecture aligned with IEC 62443 and NIST SP 800-82.

You will collaborate with plant operations, engineering, and IT security teams to develop roadmaps and drive cybersecurity improvement programs across critical infrastructure domains.

Qualifications

• Bachelor's Degree in Engineering, Computer Science, Information Security, or related field.
• Strong understanding of industrial automation and control systems.

Responsibilities

• Conduct OT Cyber Security Risk Assessments across industrial environments.
• Perform asset discovery, criticality assessment, and cyber risk analysis.
• Design and implement OT Network Segmentation and Security Zoning architectures.
• Develop Industrial DMZ architecture and secure remote access solutions.
• Deploy, configure, and optimize Industrial IDS and monitoring solutions.
• Perform security gap assessments against IEC 62443 and NIST SP 800-82 requirements.
• Create OT Security policies, standards, and technical procedures.
• Review OT network architecture and recommend security improvements.
• Support incident response and threat hunting activities in OT environments.
• Coordinate with plant operations, engineering, and IT security teams on OT security initiatives.
• Develop road maps and cybersecurity improvement programs.

Skills

OT Security

OT Risk Assessment

Vulnerability Assessment

Industrial Asset Discovery

Network Segmentation

Security Zoning

Industrial DMZ Design

Industrial IDS Deployment

ICS/SCADA Security

IEC 62443/NIST SP 800-82

Modbus/DNP3/OPC

Purdue Reference Architecture

Education

Bachelor's Degree in Engineering/CS/Information Security

Tools

Nozomi Networks

Claroty

Armis

Dragos

Cisco Cyber Vision

Microsoft Defender for IoT

Job description

Role Summary

We are seeking an experienced OT Security Professional with strong expertise in OT Risk Assessments, Network Segmentation, Security Zoning, Industrial IDS Deployment, and OT Security Architecture. The candidate should have hands‑on experience securing Industrial Control Systems (ICS), SCADA environments, and critical infrastructure while aligning security programs with IEC 62443 and NIST SP 800-82 standards.

Key Responsibilities

• Conduct OT Cyber Security Risk Assessments across industrial environments.
• Perform asset discovery, criticality assessment, and cyber risk analysis.
• Design and implement OT Network Segmentation and Security Zoning architectures.
• Develop Industrial DMZ architecture and secure remote access solutions.
• Deploy, configure, and optimize Industrial Intrusion Detection Systems (IDS) and monitoring solutions.
• Perform security gap assessments against IEC 62443 and NIST SP 800-82 requirements.
• Create OT Security policies, standards, and technical procedures.
• Review OT network architecture and recommend security improvements.
• Support incident response and threat hunting activities in OT environments.
• Coordinate with plant operations, engineering, and IT security teams on OT security initiatives.
• Develop road maps and cybersecurity improvement programs.

Required Technical Skills

• OT Security
• OT Security Risk Assessment
• Vulnerability Assessment & Risk Management
• OT Security Architecture Review
• Industrial Asset Discovery
• Network Segmentation
• Security Zoning & Conduits
• Industrial DMZ Design
• Firewall Rule Review
• Secure Remote Access
• Nozomi Networks
• Claroty
• Armis
• Dragos
• Cisco Cyber Vision
• Microsoft Defender for IoT
• Modbus
• DNP3
• OPC
• OPC-UA
• BACnet
• PROFINET
• EtherNet/IP
• IEC 61850
• IEC 62443 Series
• NIST SP 800-82
• NIST Cyber Security Framework (CSF)
• ISA/IEC Security Models
• Purdue Reference Architecture

Qualifications

• Bachelor's Degree in Engineering, Computer Science, Information Security, or related field.
• Strong understanding of industrial automation and control systems.

Added Advantage

• IEC 62443 Fundamentals Specialist
• Nozomi Certified Engineer
• Claroty Certified Professional

Desired Experience

• Experience securing Manufacturing, Power & Utilities, Oil & Gas, Pharma, Metals, Mining, or Critical Infrastructure environments.
• Experience delivering OT security consulting and assessment engagements.
• Hands‑on experience with industrial firewalls, segmentation projects, and OT monitoring deployments.
• Ability to interact with plant management, engineering teams, and executive stakeholders.

Key Competencies

• OT Risk Assessment
• Network Segmentation & Zoning
• IDS Deployment & Tuning
• IEC 62443 Compliance
• NIST 800-82 Framework Implementation
• Security Architecture Design
• Industrial Network Analysis
• Stakeholder Management
• Technical Documentation & Reporting