As a Lead Mechanical Engineer, you will play a key role in shaping next generation digital infrastructure, collaborating with multidisciplinary teams globally. Roles and responsibilities: Lead mechanical design and execution of large-scale data centre projects in India & globally. Ensure timely, high-quality, and cost-effective project delivery. Develop concept and detailed designs for HVAC, cooling, fire protection, plumbing, and ventilation. Optimize critical cooling systems for energy efficiency, redundancy, and sustainability. Ensure compliance with Indian and international (ASHRAE, ISO, etc) standards. Collaborate with architectural, structural, electrical, and ICT teams for seamless project integration. Design high-density cooling solutions for hyperscale & colocation data centres. Develop air & liquid cooling strategies (DX, CRAC/CRAH, chiller plants, liquid immersion, evaporative cooling). Conduct thermal load calculations, CFD analysis, and airflow optimization. Review and app...