Lead Mechanical Design Engineer

Location: Mumbai, India (office in Thane West)

Job Status: Permanent

Sector: Data Centres

Salary: Competitive and negotiable

Job Title: Lead Mechanical Engineer

Deerns is a multinational consultancy, design, and engineering firm specializing in high-end MEP (Mechanical, Electrical & Plumbing) advisory, design, and engineering for mission-critical and high-tech facilities. With a legacy of 97+ years, we deliver world-class solutions for data centers, healthcare, life sciences, microelectronics, and airports.

With 750 experts across 17 offices in 10 countries, Deerns provides services from strategic consulting, master planning, and specialist engineering to sustainability consulting and digital roadmaps. We are driven by our core values: entrepreneurship, design reputation, integrity, cooperation, and competence.

Deerns Spectrum Private Limited is our joint venture in India with Spectrum PharmaTECH Consultants, expanding our expertise across India, South Asia, and East Africa.

We are in an exciting phase of growth and are looking for skilled professionals to join our team.

·        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 approve Basis of Design (BOD), technical specifications, and compliance reports.

·        Guide equipment selection, ensuring adherence to reliability and redundancy requirements.

·        Drive sustainability initiatives, including free cooling, water conservation, and low-PUE designs.

·        Engage with clients, consultants, and project teams, ensuring alignment with business goals.

·        Represent Deerns in technical meetings, design reviews, and client workshops.

·        Mentor and develop junior engineers & designers, fostering a culture of technical excellence.

·        Identify business opportunities and support growth strategies for data centre projects in India.

·        B.E./B.Tech in Mechanical Engineering (Master’s preferred).

·        15+ years of experience in mechanical design, with at least 10+ years in data centre projects.

·        Must have handled at least full-cycle Indian data centre project, from concept to commissioning.

·        Strong knowledge of HVAC, critical cooling, fire protection, and mission-critical mechanical systems.

·        Expertise in ASHRAE, ISHRAE, ISO, along with international standards.

·        Proficiency in CFD analysis, thermal modelling, and energy simulation tools.

·        Hands-on experience with 3D modelling software incl. AutoCAD, Revit MEP, Navisworks, ACC.

·        Familiarity with SCADA/BMS for mechanical system integration.

·        Proven ability to lead and coordinate cross-functional teams.

·        Strong problem-solving, analytical, and decision-making skills.

·        Excellent communication, stakeholder management, and negotiation skills.

·        Agile and adaptable to diverse Indian & international project scopes.

Deerns is at the forefront of designing secure, scalable, and energy-efficient data centres, from hyperscale facilities to distributed edge solutions. Our globally distributed data centre team of 250+ experts ensure resilience, sustainability, and compliance with the highest industry standards.

As a Lead Mechanical Engineer, you will play a key role in shaping next-generation digital infrastructure, collaborating with multidisciplinary teams across Deerns globally.