Mechanical HVAC Engineer

This position is related to pharmaceutical and other industrial projects including clean rooms to work in the US and international projects. Experience in this field is required. This position is expected to be at a level where the individual will be able to evaluate, select and apply standard engineering techniques and procedures with reduced review from lead engineers, using judgment when making minor adaptations and modifications.

The HVAC Engineer will support the design and engineering of HVAC systems for controlled environments, including clean rooms, laboratories, and high-containment facilities. This role is responsible for ensuring system performance, regulatory compliance, and alignment with client and project requirements through all project phases—from conceptual design to IFC package and construction support.

• Support the design of HVAC systems for ISO-classified clean rooms, labs, and controlled environments (temperature, humidity, pressure, and particulate control).
• Develop system concepts, PFDs, and P&IDs for air handling units, HEPA filtration, make-up air, chilled water, and exhaust systems.
• Size and select air handling units (AHUs), fans, coils, ductwork, and controls.
• Perform heat load calculations, air balance, and cleanroom classification studies using relevant standards (ISO 14644, ASHRAE, cGMP, FDA, USP, etc.).
• Specify environmental monitoring systems, differential pressure controls, and contamination control strategies.
• Coordinate cleanroom HVAC design with architecture, process, electrical, plumbing, and automation disciplines

• Minimum Bachelor of Science Degree in Engineering, with mechanical emphasis.
• 5-7 years of experience in HVAC design for industrial applications.
• Applicable experience sectors may include Manufacturing, Pharma, Semi-conductors, and batteries. Petrochemical, Pulp & Paper, and/or Mining

• Viable candidate will be a flexible and dynamic team player capable of integrating into an international team.
• Candidates must have excellent analytical skills and proficiency in ASHRAE std and mechanical codes and industry-standard HVAC programs or spreadsheets.
• AutoCAD or Revit experience is a plus.
• Spanish proficiency is a plus.
• $100k to $135k per year, depending on all candidate factors, such as qualifications, experience level, etc
• Work-Life Balance, flexible hours, & full benefits package
• Long term career path, in a multicultural and a multidisciplinary environment

Idom is an employee-owned international engineering, architectural and consulting firm. Our company has more than 5500 professionals in 45 offices in the Americas, Europe, North Africa, and the Middle East. In the US we emphasize providing professional engineering and consulting services to the sectors of Power, Petrochemical, Renewable Energy, Astronomy, Research Test Facilities, Manufacturing, Pulp and Paper, Pharmaceutical and the Food and Beverage market sectors.

Our company has been in business since 1957. We have a backlog of interesting and technically challenging projects in the US and worldwide. Please refer to our global website,

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.