P.E. Mechanical HVAC Engineer

IDOM USA; Atlanta (GA); On-site; USD 120,000 - 155,000; Full time

Benefits offered by this job

Work-life balance

Flexible hours

Full benefits package

Job summary

IDOM USA is seeking a Senior HVAC Engineer to lead design of HVAC systems for ISO-cleanrooms, labs, and controlled environments. You will ensure performance, regulatory compliance, and alignment with client requirements from concept through IFC and construction support.

The ideal candidate has 10–15 years in industrial HVAC design, a mechanical engineering degree, and PE registration is preferred. Travel may be required on international projects, and the role offers a collaborative,

Qualifications

• Bachelor of Science in Engineering (Mechanical) required.
• Professional Engineering registration preferred.
• 10–15 years of HVAC design experience in industrial applications.
• Experience in Manufacturing, Pharma, Semi-conductors, or batteries.

Responsibilities

• Lead the design of HVAC systems for ISO-classified cleanrooms, labs, and controlled environments.
• Develop system concepts, PFDs, and P&IDs for AHUs, HEPA filtration, make-up air, chilled water, and exhaust.
• Size and select air handling units, fans, coils, ducts, and controls.
• Perform heat load calculations, air balance, and cleanroom classification studies per ISO 14644, ASHRAE, FDA, USP.
• Specify environmental monitoring systems and contamination control strategies.
• Coordinate cleanroom HVAC design with architecture, process, electrical, plumbing, and automation.

Skills

Analytical skills

ASHRAE standards

Mechanical codes

HVAC programs/spreadsheets

Spanish proficiency

Education

Bachelor of Science in Mechanical Engineering

Tools

AutoCAD

Revit

Job description

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 independently evaluate, select and apply standard engineering techniques and procedures, using judgment when making minor adaptations and modifications. Assistance would be given for unusual problems. Some travel may be required.

Primary Responsibilities:

The Senior HVAC Engineer will lead the design and engineering of HVAC systems for controlled environments, including cleanrooms, 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.

• Lead the design of HVAC systems for ISO-classified cleanrooms, 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 Academic & Professional Requirements:

• Minimum Bachelor of Science Degree in Engineering, with mechanical emphasis.
• Professional Engineering registration is preferred.
• 10 to 15 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

Key Skills:

• 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.
• $120k to $155k 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, www.IDOM.com.

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.