Exhaust / HVAC Journeyman

About Us

Founded in 1988, Marketech International Corp. (MIC) is a global technology and engineering company supporting semiconductor, high-tech manufacturing, cleanroom, and mission-critical facility projects. MIC provides turnkey facility integration solutions, including cleanroom and MEP construction, DI water, gas and chemical supply systems, wastewater treatment, facility monitoring and control systems, installation, and maintenance services. Through Marketech International Corporation USA, we support major semiconductor and industrial projects across the United States.

Job Overview

We are seeking an experienced Exhaust / HVAC Journeyman, often classified as a Journeyperson Sheet Metal Mechanic, to support semiconductor tool installation and facility construction projects.

This position is responsible for fabricating, installing, sealing, testing, and supporting high-purity ductwork, process exhaust systems, and related HVAC components within cleanroom and semiconductor fab environments.

The ideal candidate will have strong sheet metal or HVAC experience and be comfortable working with process exhaust systems, cleanroom requirements, mechanical drawings, and high-precision installations.

Key Responsibilities

• Read and interpret blueprints, shop drawings, isometrics, 3D models, and HVAC/duct layouts.

• Fabricate, assemble, install, and seal sheet metal ductwork and related components.

• Install hangers, supports, dampers, boots, transitions, plenums, and cleanroom enclosures.

• Perform precision layout, cutting, bending, forming, and finishing.

• Install and connect semiconductor process exhaust systems, including:

  • Acid Exhaust (AEX)

  • Alkaline Exhaust (ALEX)

  • VOC Exhaust

  • Heat/General Exhaust

  • Toxic/process exhaust systems

• Support semiconductor tool installation and utility hookup activities.

• Perform leak checks, exhaust testing, flow measurements, and testing/balancing activities.

• Assist with commissioning and startup of HVAC and process-exhaust systems.

• Work with materials including stainless steel, PVC, PP, and FRP when required.

• Maintain clean work areas and follow cleanroom contamination-control procedures.

• Follow required gowning, material-handling, housekeeping, safety, environmental, and LOTO procedures.

• Collaborate with foremen, QA/QC teams, commissioning personnel, engineers, tool owners, and other trades.

• Perform troubleshooting, maintenance, documentation, and other related duties as needed.

Qualifications

• Several years of commercial or industrial HVAC, sheet metal, or related construction experience.

• Strong ability to read mechanical blueprints, isometrics, and 3D models.

• Experience with sheet metal fabrication tools and installation methods.

• Knowledge of duct construction, sealing, and installation practices.

• Experience with welding and fabrication techniques is preferred.

• Ability to work in cleanrooms and controlled industrial environments.

• Ability to work around chemicals and process exhaust systems.

• Ability to lift 50+ lbs and work at heights and in confined spaces.

• Ability to stand for extended periods and safely use hand and power tools.

• Strong attention to detail and commitment to safety and quality.

• Good communication and teamwork skills.

• Valid driver's license.

• Ability to meet site access requirements, including background screening and drug screening as required.

Preferred Qualifications

• 3–5+ years of construction, HVAC, sheet metal, tool installation, cleanroom, or related experience.

• Previous semiconductor or high-tech manufacturing experience.

• Experience with process exhaust systems or cleanroom HVAC.

• Experience with semiconductor fab tool installation.

• Experience with exhaust balancing, utility release, or scrubbed exhaust systems.

• Knowledge of SMACNA standards.

• Familiarity with SEMI, NFPA, and OSHA requirements.

• OSHA 10 or OSHA 30 certification.

• Experience with high-purity or corrosive exhaust materials, including stainless steel, coated duct, and plastic duct.

• Prior cleanroom protocol training or experience.

• Experience supporting testing, balancing, commissioning, and exhaust-system documentation.

Physical & Work Environment

This position requires working in semiconductor cleanroom and industrial construction environments. Employees may be required to wear cleanroom garments and PPE and work around chemicals and process exhaust systems.

The position may require lifting 50+ lbs, working at heights, working in confined spaces, standing for extended periods, and performing physically demanding installation and fabrication tasks.

Equal Employment Opportunity

All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance.