Mechanical Engineer (Commercial HVAC)

LeoForce; Gardena (CA); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Health, Dental, Vision

Life Insurance

Paid Time Off

Retirement Savings

Job summary

LeoForce in Gardena, CA is seeking a Mechanical Engineer with 5+ years of commercial HVAC design to join our design-build team. You will design and coordinate HVAC systems for new construction, retrofits, and tenant improvements, from concept through construction, collaborating with project managers, estimators, and field teams.

This role offers growth within a long-established mechanical contracting firm, exposure to iconic projects across Southern California, and a competitive benefits

Qualifications

• Bachelor’s degree in Mechanical Engineering or a closely related field.
• 5+ years of commercial HVAC design experience.
• Strong knowledge of commercial mechanical systems and design-build workflows.
• Ability to read and interpret plans, specifications, and drawings.

Responsibilities

• Design and coordinate commercial HVAC systems for new construction, retrofits, tenant improvements, and design-build projects.
• Prepare mechanical concepts, calculations, equipment selections, and system layouts.
• Collaborate with project managers, estimators, superintendents, and field teams to support constructability and execution.
• Review drawings, specifications, and submittals for accuracy and compliance.
• Support coordination with general contractors, consultants, building owners, and facility stakeholders.
• Help resolve field issues and provide engineering support during installation and commissioning.
• Contribute to value engineering, energy efficiency, and cost-effective design solutions.
• Maintain clear documentation and support project turnover as needed.

Skills

HVAC design

PE license (preferred)

Reading drawings

Team collaboration

Concept to construction

Education

Bachelors in Mechanical Engineering

Tools

AutoCAD

Revit

Microsoft Excel

Job description

Mechanical Engineer (Commercial HVAC)

Experience

Mid Level

Salary

$110,000 - $160,000 per year

Job Details

We’re looking for a Mechanical Engineer with at least 5 years of experience in commercial HVAC system design to join a growing design-build team in Gardena, CA. In this role, you’ll help develop mechanical solutions for large commercial and institutional projects from early concept through construction, coordinating closely with internal teams, consultants, contractors, and clients to deliver systems that are efficient, practical, and buildable. This is a strong opportunity for someone who wants to work on complex projects, see their designs move into the field, and join a company with a long track record, strong safety culture, and broad project portfolio.

Responsibilities

• Design and coordinate commercial HVAC systems for new construction, retrofits, tenant improvements, and design-build projects.
• Prepare mechanical concepts, calculations, equipment selections, and system layouts.
• Collaborate with project managers, estimators, superintendents, and field teams to support constructability and execution.
• Review drawings, specifications, and submittals for accuracy and compliance.
• Support coordination with general contractors, consultants, building owners, and facility stakeholders.
• Help resolve field issues and provide engineering support during installation and commissioning.
• Contribute to value engineering, energy efficiency, and cost-effective design solutions.
• Maintain clear documentation and support project turnover as needed.

Qualifications

• Bachelor’s degree in Mechanical Engineering or a closely related field.
• 5+ years of commercial HVAC system design experience.
• Strong knowledge of commercial mechanical systems, equipment, and design-build workflows.
• Experience with commercial projects such as office, healthcare, education, industrial, or data center facilities (preferred).
• Ability to read and interpret plans, specifications, and mechanical drawings.
• PE license or progress toward licensure (preferred).

A bit about us

We are a long-established, full-service mechanical contractor based in Gardena, serving large-scale commercial clients across Southern California. We have been in business for over 25 years, and are known for design-build work, strong safety performance, and delivery across demanding projects in aerospace, education, entertainment, healthcare, and transportation. This is a place for someone who wants to grow with a respected contractor that handles complex work, trusted by major builders and owners, and offers exposure to some of the most iconic buildings in Los Angeles.

Why join us?

• Competitive pay ($110k-$160k DOE)
• Health, dental, and vision insurance
• Company paid life insurance
• Paid time off/ Holidays
• Retirement savings