Sr Administrator (Support & Operations)

Technology, Data & Digital

In short

As an OT Platform Management & Security Engineer (L3) in Noida, India, you will be responsible for managing, monitoring, securing, and maintaining Operational Technology (OT) infrastructure and security platforms, including Dispel SRA and Nozomi. This role requires hands-on experience in OT/ICS/SCADA environments, network troubleshooting, and security operations with at least 8 years of overall experience.

Responsibilities

Manage and maintain OT infrastructure platforms and supporting services.
Perform platform health checks, monitoring, and operational maintenance activities.
Coordinate patching, upgrades, backups, and restoration activities.
Troubleshoot platform-related incidents and service requests.
Administer and support Dispel Secure Remote Access (SRA) platform.
Monitor OT security alerts and events.
Support incident investigation, containment, and remediation activities.
Implement and maintain OT security controls and hardening standards.
Administer and support Nozomi Guardian/CMC platforms.
Monitor OT networks, assets, and security events.
Manage sensors, collectors, and platform upgrades.
Develop and maintain dashboards, reports, and asset inventories.

Requirements

OT/ICS/SCADA environment administration.
OT Platform Management and Operations Support.
Dispel Secure Remote Access (SRA) administration.
Nozomi Guardian and Central Management Console (CMC).
Industrial network troubleshooting.
Windows Server Administration.
Active Directory and Identity Management.
Backup and Recovery Operations.
OT Security Monitoring and Incident Response.
Vulnerability Management and Security Hardening.
Firewall and Network Security Concepts.
Ticketing and Change Management Processes.
8+ years overall experience with 5+ years in OT Security / OT Platform Management.
Hands-on experience with Dispel SRA and Nozomi platform administration.
Experience supporting manufacturing, industrial, or critical infrastructure environments.
Strong incident troubleshooting and problem-solving skills.
Ability to work independently and manage customer interactions.
Experience coordinating with global stakeholders and site teams.
Excellent communication and documentation skills.

Desired Qualifications

GICSP (Global Industrial Cyber Security Professional)
ISA/IEC 62443 Cybersecurity Certification
CISSP
CompTIA Security+
Microsoft Security Certifications
Nozomi Certified Engineer (Preferred)

Benefits

Supercharge your potential.
Find your career.
Find your spark.
A place that knows that helping its customers stay on top starts by putting its people first.

Skills

OT/ICS/SCADADispel SRANozomi GuardianNozomi CMCWindows ServerActive DirectorySIEM

#OT Platform Management#OT SRA#Dispel#OT Security#Nozomi Platform Management#L3 Engineer

About HCLTech

Supercharging progress through technology and innovation

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered around digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2022 totaled $12.1 billion. To learn how we can supercharge progress for…

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