Senior Technical Architect
India
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Job Description
Senior Technical Architect
Chennai, Tamil Nadu

Job Summary

We are seeking an experienced Operational Technology (OT) Subject Matter Expert (SME) with strong expertise in Industrial Control Systems (ICS), IT-OT integration, and Industry 4.0 solution architecture. The candidate will design and implement connected factory solutions integrating shopfloor systems with cloud platforms.

Key Responsibilities

Key Responsibilities

  • OT Architecture & Industry 4.0 Solutioning
  • Design end-to-end OT architectures across PLC, SCADA, MES, Historian, and Cloud.
  • Develop Industry 4.0 / Connected Factory solutions including analytics and predictive maintenance.
  • Industrial Control Systems
  • Work with PLCs, SCADA, HMI, DCS, RTU and historians.
  • Conduct OT assessments and modernization initiatives.
  • IT-OT & Cloud Integration
  • Integrate OT systems with cloud platforms (Azure/AWS) using secure architecture.
  • Implement gateways, APIs, MQTT, OPC UA for connectivity.
  • Industrial Protocols
  • Strong knowledge of OPC UA, MQTT, Modbus TCP/IP, Profinet, EtherNet/IP.
  • Integration & Data Engineering
  • Build data ingestion pipelines and real-time analytics solutions.
  • Cybersecurity (Good to Have)
  • Knowledge of IEC 62443 and NIST standards.

Skill Requirements

  • Strong experience in Industrial Control Systems, OT/IT integration, and Industry 4.0.
  • Experience with cloud platforms (Azure/AWS IoT).
  • Expertise in industrial connectivity and edge devices.

Other Requirements

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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.