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Lead Ventilation Systems Expert – Semiconductor Facilities Design (Cleanroom, HVAC & CFD)

Location: Mumbai, India (office in Thane West)

Job Status: Permanent

Sector: Semiconductor / High-Tech Manufacturing

Salary: Competitive and negotiable

Job Title: Lead Ventilation Systems Expert

About Deerns

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 centres, 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 entering a high-growth phase in India and are seeking senior cleanroom and ventilation specialists with semiconductor, electronics manufacturing, or closely related mission-critical HVAC experience to strengthen our high-tech engineering capability.

Job Overview:

Deerns India is seeking a highly experienced Ventilation Systems Expert to lead the technical strategy, design governance, and optimization of advanced cleanroom HVAC, ventilation, and process exhaust systems for semiconductor and electronics manufacturing facilities.

This role is critical to Deerns India's high-tech growth agenda, combining semiconductor-grade cleanroom expertise with leadership in energy-efficient, safe, and buildable ventilation solutions across complex project environments.

The Role Covers The Following Core Technical Domains:

FFU-based air systems (with and without chilled coils)
Process exhaust systems with scrubber integration
Heating and cooling systems
CFD-based airflow analysis and optimization

The ideal candidate will bring strong expertise in cleanroom airflow engineering, contamination control, HVAC system design, and CFD analysis, ensuring systems meet stringent performance, safety, and energy efficiency requirements.

Key Responsibilities:

Technical Leadership & Design Governance

Ø Lead ventilation design strategy from concept through detailed engineering, ensuring cleanroom HVAC, FFU, process exhaust, and scrubber integration decisions are technically sound, buildable, and aligned with project objectives.

ISO Class cleanroom HVAC systems (ISO 1–8)
FFU-based ventilation systems:
Without chilled coils (fan-driven / Dedicated Outdoor Air System (DOAS)
With chilled coils (AHU-supported systems)
Heating and cooling systems for high-load facilities
Process exhaust systems (general and hazardous)
Scrubber and abatement system integration

Ø Provide senior review of design basis documents, PFDs, P&IDs, HVAC schematics, airflow calculations, system sizing, and vendor submissions.

Design Basis Documents (DBD)
PFDs, P&IDs, HVAC schematics
Airflow (ACPH), load calculations, and system sizing

Ø Ensure compliance with semiconductor cleanroom performance expectations, safety requirements, environmental regulations, and Deerns engineering quality standards.

Semiconductor cleanroom performance standards
Safety and environmental regulations
Cleanroom Airflow, CFD & Contamination Control

Ø Lead or review CFD-led airflow studies to validate cleanroom airflow distribution, particle control, temperature and humidity uniformity, process heat dissipation, and contamination risk mitigation.

Cleanroom airflow distribution
Particle control and contamination risks
Temperature and humidity uniformity
Process heat dissipation

Ø Translate simulation results into practical engineering decisions, including FFU layout, airflow regimes, pressure cascades, environmental control philosophy, and mitigation of turbulence, dead zones, and hotspots.

Validate airflow design concepts
Optimize FFU layout and ceiling coverage
Identify and mitigate dead zones, turbulence, and hotspots

Ø Coordinate With CFD Specialists (if Applicable) And Ensure:

Practical applicability of simulation results
Alignment with engineering design and site conditions
Cleanroom & Contamination Control Design

Ø Define:

Airflow regimes (laminar vs mixed flow)
Pressure cascades between zones
Environmental control philosophy

Ø Ensure:

Uniform airflow distribution
Compliance with ISO particle limits
Stable environmental conditions for process tools
Energy Efficiency & System Optimization

Ø Design energy-efficient HVAC systems while maintaining cleanroom standards

Ø Optimize:

Air change rates vs contamination requirements
FFU energy consumption and fan efficiency
Pressure drops across ducts and filters

Ø Implement:

Demand-controlled ventilation strategies
Variable airflow systems (VAV/hybrid)
Efficient chilled water integration

Ø Perform:

Energy modelling and lifecycle cost (LCC) analysis
Heating & Cooling System Design

Ø Develop HVAC Systems To Manage:

High internal heat loads from process tools

Ø Integrate:

Chilled water systems
Heating systems

Ø Ensure:

Tight temperature and humidity control tolerances
Stable thermal performance under dynamic loads
Process Exhaust & Scrubber Systems

Ø Design:

High-volume and hazardous exhaust systems
Corrosion-resistant ducting systems

Ø Integrate:

Wet scrubbers
Dry scrubbers
Abatement systems

Ø Ensure:

Safe handling of toxic and corrosive exhaust streams
Project Execution

Ø Support:

Concept, FEED, and detailed engineering phases

Ø Review:

EPC contractor designs
Vendor equipment and system designs

Ø Participate In:

Design reviews
HAZOP and risk assessments
Value engineering workshops
Multidisciplinary Coordination

Ø Interface With:

Process engineering teams
Cleanroom planners and tool vendors
Utilities teams (water, gases, chemicals)

Ø Ensure:

Integration between ventilation, process tools, and exhaust systems
Commissioning & System Performance

Ø Support Commissioning And Validation:

Cleanroom classification (ISO compliance)
Airflow balancing and testing

Ø Validate:

CFD predictions vs actual performance
System stability and environmental control
Sustainability, Candidate Profile & Compliance

Ø Drive energy-efficient cleanroom ventilation strategies that balance contamination control, lifecycle cost, carbon reduction, and operational resilience.

Energy efficiency and sustainability targets

Ø Support green building certifications such as LEED or equivalent while maintaining semiconductor-grade performance and safety requirements.

Green building certifications (LEED or equivalent)

Ø Contribute To:

Carbon reduction and energy optimization strategies

Why Join Us

Work on cutting-edge Electronics projects with leading industry experts.
Be part of a company that values technical excellence & innovation.
Lead high-impact, mission-critical projects shaping the future of digital infrastructure.
Our clients include a mixture of key regional and international players in the Semiconductor industry

Skills & Competencies Required:

Bachelor's / master's degree in mechanical / HVAC Engineering.
15+ years of experience in HVAC and Clean Room systems design.
5+ years of Experience in semiconductor / high-purity / mission-critical facilities preferred.
Semiconductor or electronics manufacturing cleanroom ventilation experience is strongly preferred; candidates from data centres or other mission-critical HVAC environments should demonstrate clear exposure to contamination control, high air-change systems, and precision environmental performance.
Strong understanding of semiconductor cleanroom best practices, ISO classification expectations, pressure control, process exhaust interfaces, and high air-change-rate systems.
Experience with CFD tools (e.g., ANSYS Fluent, 6SigmaRoom, or equivalent) and Energy modelling tools
Knowledge of global and Indian design standards and environmental regulations.
Proficiency in engineering tools such as AutoCAD, Revit, PFD's and AFD's development platforms.
Strong capability in design review, technical governance, and vendor coordination
Excellent problem-solving, stakeholder management, and communication skills
Ability to work in multidisciplinary and international project teams

Lead Ventilation Systems Expert Semiconductor Facilities Design (Cleanroom, HVAC & CFD)