Tower Lead
HCLTech
Tower Lead
About this role
Job Summary
Position Overview
We are seeking a top-tier Subject Matter Expert (SME) – HVAC & Liquid Cooling to serve as the ultimate technical authority on thermal engineering, liquid cooling innovation, and HVAC architecture for our next-generation AI data centers.
You will lead the design standards, fluid dynamics modeling, vendor benchmarking, and technical validation for high-density cooling infrastructure. This role is responsible for ensuring our facilities reliably support 100 kW to 150 kW+ per rack GPU deployments using direct-to-chip, immersion, and advanced hydronic cooling loops.
Key Responsibilities
. Advanced Liquid Cooling Architecture & Innovation
Direct-to-Chip & Immersion Topology: Define the global technical standards for direct-to-liquid cold plate loops, single/two-phase immersion cooling, Coolant Distribution Units (CDUs), and Rear Door Heat Exchangers (RDHx).
Fluid Dynamics & Thermal Modeling: Lead Computational Fluid Dynamics (CFD) modeling, hydronic network calculations, pressure drop analysis, and thermal capacity planning for high-density GPU clusters (e.g., NVIDIA H100/B200/GB200).
Coolant Chemistry & Fluid Management: Establish strict fluid quality guidelines, dielectric/glycol chemical specs, water treatment protocols, filtration standards, and corrosion prevention controls.
2. HVAC & Central Plant Optimization
Primary Heat Rejection Systems: Architect low-PUE primary cooling systems, including magnetic-bearing chillers, adiabatic dry coolers, free-cooling economizers, and cooling towers.
Hybrid Air & Liquid Systems: Design balanced thermal environments where liquid cooling handles 80–90%+ of rack heat load while supplementary CRAH/CRAC units maintain ambient data hall humidity and air distribution.
Energy & Sustainability Optimization: Drive industry-leading Power Usage Effectiveness (PUE) and Water Usage Effectiveness (WUE) metrics aligned with ASHRAE TC 9.9 liquid cooling guidelines.
3. Peer Review, Troubleshooting & OEM Engagement
Design Validation & Review: Perform deep-dive technical reviews of MEP consultant drawings, single-line hydronic schematics, and equipment specifications across all global projects.
Root-Cause Failure Analysis: Serve as the escalation lead for complex thermal failures, fluid leaks, pressure drops, or CDU performance degradation during testing or live operations.
Vendor Benchmarking & R&D: Evaluate next-gen liquid cooling hardware from global OEMs, pilot emerging cooling technologies, and drive custom equipment engineering with suppliers.
Skill Requirements
Other Requirements
Frequently Asked Questions
Is the salary disclosed for the Tower Lead position at HCLTech?
The salary for this Tower Lead role at HCLTech is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Tower Lead position at HCLTech located?
This Tower Lead role at HCLTech is based in Mumbai, India. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
How do I apply for the Tower Lead position at HCLTech?
Click the "Apply Now" button on this page. You will be redirected to HCLTech's official application portal hosted on successfactors where you can submit your application directly.
When was the Tower Lead job at HCLTech posted?
This Tower Lead position at HCLTech was posted on Sep 23, 2026. Apply as soon as possible — early applications are often reviewed first.
Tower Lead
HCLTech
You'll be redirected to HCLTech's official application page on successfactors.