Senior HVAC/Plumbing Design Engineer

Leoforce; Union City (CA); On-site; USD 100,000 - 220,000; Full time

Job summary

Leoforce in Union City, CA is seeking a Senior Mechanical Engineer to develop HVAC and plumbing solutions for commercial buildings and energy projects. You will collaborate with internal teams, fabricators, installers, and controls programmers to produce construction documentation and control-system designs.

The role includes testing and commissioning to ensure systems operate efficiently and meet project requirements, with ongoing training provided for plumbing design as needed.

Qualifications

• HVAC design experience required.
• Plumbing design experience is a plus but not required.
• Comfort with learning established design and engineering processes.

Responsibilities

• Develop HVAC and plumbing solutions for commercial buildings and energy-related applications.
• Collaborate with internal teams, fabricators, installers, and controls programmers to develop construction documentation and control system designs.
• Test and commission systems after installation to ensure efficient operation and meeting project requirements.

Skills

HVAC design

Plumbing design

Job description

Job Description

Experience: Senior Level

Salary: $100,000 - $220,000 per year

Location: Union City, CA, US

Job Details

Leading commercial mechanical contractor is seeking a Mechanical Engineer to develop HVAC and plumbing solutions for commercial buildings, facilities, process environments, and energy-related applications.

The Mechanical Engineer will collaborate with internal teams, fabricators, installers, and controls programmers to develop construction documentation, mechanical designs, and control system solutions.

The role will also involve testing and commissioning systems after installation to ensure they operate efficiently and meet project requirements.

The ideal candidate will be comfortable learning established design and engineering processes and progressively taking on projects with greater independence. HVAC design experience is required, while plumbing design experience is a plus but not required. Plumbing design will be part of the position, with ongoing training and professional development provided.

A bit about us

We are a well established mechanical and controls contractor with decades of experience delivering integrated HVAC and Building Automation solutions.

Our projects focus on creating comfortable, efficient, and high performing built environments.

We emphasize innovation, quality execution, and strong customer relationships, supported by a culture that prioritizes teamwork, professional development, and operational excellence.

Why join us?

Join a team known for technical excellence, long term client partnerships, and a strong culture of collaboration. This role offers the opportunity to manage complex, high impact Building Automation System projects across innovative sectors including biotech, high tech, retrofit, and sustainable building initiatives. You will work alongside experienced engineering, field, and operations professionals in an environment that values accountability, problem solving, and continuous improvement.