Senior Administrator - IT security
India
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Job Description
Senior Administrator - IT security
Chennai, Tamil Nadu

Job Summary

OT Claroty L2 : Scope: Asset Discovery, Vulnerability & Exposure Management, Threat Detection Platform: Claroty (CTD / xDome as applicable) Service Model: 8x5 Operations + On-call support for P1/P2 incidents Coverage: Multi-site OT environments

Key Responsibilities

Monitor and maintain accurate OT Asset Discovery using Claroty; validate new, changed, and rogue assets. - Operate Vulnerability & Exposure Management: analyze Claroty findings, classify risk, and track remediation actions. - Monitor OT threat detection alerts, perform initial triage, and escalate incidents as per severity. - Support P2 incidents independently and assist in P1 incidents during on-call windows. - Perform platform health checks, sensor status validation, and data quality reviews. - Maintain SOPs, evidence, incident records, and operational reports. - Coordinate with plant/site teams for investigations and remediation activitiesq

Skill Requirements

: 3–6 years of experience in OT / ICS security operations or OT SOC. - Hands-on experience with Claroty for Asset Discovery, VM, and Threat Detection. - Knowledge of OT protocols (Modbus, DNP3, OPC, Ethernet/IP). - Understanding of Purdue model and OT network architectures. 

Other Requirements

ITIL and Fluent English
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 226,300 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, 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 December 2025 totaled $14.5 billion.
23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.