Junior Mechanical Engineer: HVAC, Piping & Cleanroom Design

ONECLASS ENG; Houston (TX); On-site; USD 60,000 - 80,000; Full time

Job summary

One Class ENG, Inc. is seeking an Entry-Level Mechanical Engineer to support design, installation, testing, and commissioning of mechanical systems for large-scale semiconductor facility projects in Houston.

You will collaborate with project managers, engineers, contractors, vendors, and field teams, gaining hands-on experience with HVAC, piping, utility, and cleanroom systems. Responsibilities include assisting with design coordination, reviewing drawings and data, performing basic

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• Basic knowledge of HVAC, piping, thermodynamics, and fluid mechanics.
• Ability to read mechanical drawings, diagrams, specifications, and project documents.
• Strong analytical, organizational, communication, and problem-solving skills.

Responsibilities

• Assist with design and coordination of HVAC, piping, utility, and cleanroom mechanical systems.
• Review mechanical drawings, specifications, submittals, and equipment data.
• Support basic engineering calculations, equipment selection, material takeoffs, and technical documentation.
• Assist with field inspections and verify installations against approved drawings and specifications.
• Coordinate with project managers, engineers, contractors, vendors, and field personnel.
• Prepare RFIs, reports, equipment schedules, and supporting project documentation.
• Identify and help resolve mechanical design and installation conflicts.
• Monitor construction progress and document field conditions.
• Support system testing, commissioning, and TAB activities.
• Assist with punch-list completion and project closeout as needed.

Skills

Mechanical systems knowledge

Reading drawings

Analytical skills

Communication

Problem-solving

Team collaboration

Education

Bachelor’s degree in Mechanical Engineering

Tools

AutoCAD

Revit

Bluebeam

Job description

One Class ENG, Inc. is seeking an Entry-Level Mechanical Engineer to support design, installation, testing, and commissioning of mechanical systems for large-scale semiconductor facility projects in Houston.

You will collaborate with project managers, engineers, contractors, vendors, and field teams, gaining hands-on experience with HVAC, piping, utility, and cleanroom systems. Responsibilities include assisting with design coordination, reviewing drawings and data, performing basic