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Commissioning Assistant Jobs in California (NOW HIRING)

Commissioning Associate

San Diego, CA

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Review of submittals and shop drawings for key information * Assist in developing Commissioning Plans * Assist in developing project specific test scripts including Pre-Functional Checklists (PFC ...

Commissioning Associate

San Diego, CA · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Review of submittals and shop drawings for key information * Assist in developing Commissioning Plans * Assist in developing project specific test scripts including Pre-Functional Checklists (PFC ...

Commissioning Engineer

Loma Linda, CA

$90K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

Schedule and execute commissioning field activities. * Assist with the review of equipment submittals, package vendor submittals, and operation & maintenance submittal. * Support the development and ...

Commissioning Engineer

Loma Linda, CA · On-site

$90K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

Schedule and execute commissioning field activities. * Assist with the review of equipment submittals, package vendor submittals, and operation & maintenance submittal. * Support the development and ...

Commissioning Engineer

Riverside, CA · On-site

$90K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

Schedule and execute commissioning field activities. * Assist with the review of equipment submittals, package vendor submittals, and operation & maintenance submittal. * Support the development and ...

Commissioning Technician

San Diego, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Depending on project capacity, this candidate may also be expected to assist in limited mechanical ... Prepares commissioning plan for complex or broad-scope projects new construction * Prepares ...

Commissioning Engineer

Loma Linda, CA · On-site

$90K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

Schedule and execute commissioning field activities. * Assist with the review of equipment submittals, package vendor submittals, and operation & maintenance submittal. * Support the development and ...

Building Commissioning Engineer

San Francisco, CA · On-site

$80K - $130K/yr

  • Medical

  • Life

  • PTO

As a Commissioning Engineer, you will play a crucial role in ensuring the successful installation ... Ensure compliance with relevant codes, standards, and safety regulations. * Assist the project ...

Building Commissioning Engineer

San Diego, CA · On-site

$80K - $130K/yr

  • Medical

  • Life

  • PTO

As a Commissioning Engineer, you will play a crucial role in ensuring the successful installation ... Ensure compliance with relevant codes, standards, and safety regulations. * Assist the project ...

Building Commissioning Engineer

San Francisco, CA · On-site

$80K - $130K/yr

  • Medical

  • Life

  • PTO

As a Commissioning Engineer, you will play a crucial role in ensuring the successful installation ... Ensure compliance with relevant codes, standards, and safety regulations. * Assist the project ...

As a Commissioning Engineer, you will play a crucial role in ensuring the successful installation ... Ensure compliance with relevant codes, standards, and safety regulations. * Assist the project ...

As a Commissioning Engineer, you will play a crucial role in ensuring the successful installation ... Ensure compliance with relevant codes, standards, and safety regulations. * Assist the project ...

Senior Commissioning Agent

San Jose, CA · On-site

$115K - $150K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Perform pre-functional inspections and field observations of equipment and systems. Assist in ... AABC Commissioning Agent (CxA) or (BCxA), ASHRAE Commissioning Process Management Professional ...

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Showing results 1-20

Commissioning Assistant information

See California salary details

$7

$20

$37

How much do commissioning assistant jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for commissioning assistant in California is $20.32, according to ZipRecruiter salary data. Most workers in this role earn between $15.91 and $22.31 per hour, depending on experience, location, and employer.

What are some common challenges faced by a commissioning assistant during project handover phases?

As a Commissioning Assistant, one common challenge during project handover is ensuring that all systems and documentation are thoroughly tested, completed, and meet compliance standards within tight deadlines. Coordinating between multiple teams—such as engineering, construction, and client representatives—can also present difficulties, especially when schedules or expectations differ. Attention to detail and strong organizational skills are essential to track outstanding issues and ensure seamless communication, helping to minimize delays and facilitate a smooth transition to operations.

What is the difference between Commissioning Assistant vs Commissioning Engineer?

AspectCommissioning AssistantCommissioning Engineer
CredentialsTypically requires a diploma or associate degree in engineering or related fieldUsually holds a bachelor's degree in engineering or technical discipline
Work EnvironmentSupports testing, documentation, and coordination tasks on-site or in officesLeads testing, troubleshooting, and system integration activities on-site
Industry UsageCommonly employed in construction, energy, and industrial projectsInvolved in project management and technical oversight in similar industries

The main difference is that a Commissioning Assistant supports the commissioning process through documentation and coordination, while a Commissioning Engineer takes a more active role in testing and system troubleshooting. The Assistant typically requires less experience and focuses on supporting tasks, whereas the Engineer leads technical activities on-site.

What are the key skills and qualifications needed to thrive as a commissioning assistant?

To thrive as a Commissioning Assistant, you need a solid understanding of engineering principles, project documentation, and quality assurance processes, often supported by a technical diploma or degree. Familiarity with commissioning management software, building management systems (BMS), and relevant safety certifications such as OSHA are typically required. Attention to detail, organizational skills, and effective communication help you coordinate among stakeholders and maintain project timelines. These skills and qualities are essential to ensure systems are installed, tested, and handed over efficiently and safely in compliance with project standards.

What is a commissioning assistant?

Commissioning Assistants are professionals who support the commissioning process of new or refurbished buildings, systems, or equipment. Their role includes coordinating schedules, assisting with documentation, and ensuring that systems function as intended according to project specifications. They often work under the supervision of a Commissioning Manager or Engineer and collaborate with various teams such as construction, engineering, and quality assurance. Commissioning Assistants play a key part in ensuring projects are completed efficiently, safely, and within compliance standards.

What are the most commonly searched types of Commissioning jobs in California?

The most popular types of Commissioning jobs in California are:

What are popular job titles related to Commissioning Assistant jobs in California?

For Commissioning Assistant jobs in California, the most frequently searched job titles are:

What cities in California are hiring for Commissioning Assistant jobs?

Cities in California with the most Commissioning Assistant job openings:

Commissioning Associate

Tosh Farms

San Diego, CA

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 15 days ago


Job description

COMPANY OVERVIEW

Our mission is to elevate project delivery by challenging the status quo. At GMC Cx, we believe proactive quality assurance helps companies build and maintain facilities that are not just functional but also efficient, reliable sustainable, and enjoyable. We are a leading provider of commissioning services for a wide range of construction projects, from state-of-the-art life science and pharmaceutical facilities to cutting-edge corporate campuses, data centers and healthcare developments.

We work with top high-tech companies from promising startups to established Fortune 500 businesses - and we know about growth. From humble beginnings 7 years ago, we've grown our company from 3 hands-on principals to a staff of 20 in 4 States with projects covering the Mid and Western US.

Our goal is to ensure that every project we touch operates at its peak performance, saving our clients time and resources while minimizing their environmental footprint.

Find us online at www.GMCCx.com


Job Description:

Are you a dynamic, results-driven professional with a passion for precision and quality assurance? Do you have a knack for bringing complex systems to life and ensuring they operate seamlessly? If so, we have the perfect opportunity for you!

As a Commissioning Associate at GMC Cx, you will be at the forefront of ensuring the success of our projects. You will be responsible for the thorough testing, verification, and optimization of building systems, ensuring they function as designed. Your work will directly impact the performance, sustainability, and overall satisfaction of our clients and end-users.


Why JOIN GMC CX?

Come join a dynamic team of experts dedicated to excellence in commissioning.

  • Work on a diverse range of projects, each with unique challenges and opportunities.
  • Be part of a company committed to sustainability and the future of green building.
  • Competitive compensation and benefits package.
  • Ongoing professional development and training opportunities.
  • The chance to make a significant impact on the built environment and leave a lasting legacy.


Key Responsibilities:

  • System Testing: Conduct thorough testing and verification of various building systems, including HVAC, electrical, plumbing, and building automation, to ensure they meet design specifications and regulatory requirements.
  • Documentation: Prepare comprehensive commissioning documentation, reports, and test procedures to track system performance, identify deficiencies, and recommend corrective actions.
  • Collaboration: Collaborate closely with project managers, architects, engineers, contractors, and owners to align commissioning activities with project goals and timelines.
  • Problem Solving: Diagnose and troubleshoot system issues, developing innovative solutions to address challenges and ensure optimal functionality.
  • Energy Efficiency: Identify opportunities for energy savings and sustainability enhancements in building operations, making recommendations for improvements.
  • Client Interaction: Communicate effectively with clients, presenting commissioning findings and providing training to end-users to ensure a smooth transition to the operational phase.
  • Quality Assurance: Maintain the highest standards of quality and precision throughout the commissioning process, ensuring that all systems meet or exceed industry standards.


RELEVANT PREVIOUS EXPERIENCE

  • Controls Engineer or Technician
  • Testing, Adjusting, and Balancing Engineer or Technician
  • Electrician or Electrical Testing/Acceptance Technician
  • Startup Technician
  • HVAC Service and Maintenance Technician
  • MEP Coordinators
  • MEP Quality Assurance Managers or Engineers
  • Calibration Technicians


JOB QUALIFICATIONS

  • Related industry and/or commissioning experience required
  • Basic knowledge of the design, construction and commissioning processes
  • Awareness of local energy codes and LEED Cx requirements
  • Field experience strongly preferred
  • Complex project experience (Mission Critical, Healthcare, Laboratory, Etc.) preferred
  • Basic skills with Microsoft Office applications (Word, excel)
  • Experience with Bluebeam Software
  • Must have good communication and writing skills.
  • Highly organized
  • As a work from home position, must be Self-Motivated
  • Time Management skills


DUTIES AND ESSENTIAL FUNCTIONS

  • Review of design documents (OPR, BOD, Plans and Specifications ) for key information
  • Review of submittals and shop drawings for key information
  • Assist in developing Commissioning Plans
  • Assist in developing project specific test scripts including Pre-Functional Checklists (PFC), Functional Performance Tests (FPT), and Integrated Systems Tests (IST).
  • Onsite execution/witness of Pre-Functional Checklists
  • Assist with execution of test protocols
  • Attend meeting led by senior staff, capturing and delivering meeting minutes to the project team.
  • Backchecking Commissioning Issues in the field
  • Basic Technical knowledge of system design, installation, operation and maintenance in the following areas:
  • Mechanical Systems (HVAC)
  • Electrical Systems
  • Plumbing System
  • Controls and Automation
  • Building Automation Systems (BAS, BMS, Etc.)
  • Building Envelope
  • Retro-Commissioning (RCx) and Energy Auditing Experience is a plus
  • Full-time work
  • Constant communication
  • Local travel and some long-distance travel to jobsites. Vehicle, driver's license, and insurance required.
  • Occasional work on a Saturday, typically scheduled a few weeks in advance
  • Climbing up and down ladders
  • Maintaining balance in all situations
  • Stand and walk for long periods of time on jobsites
  • Conducting yourself safely on jobsites and complying with the Contractors' job-specific safety requirements
  • Utilizing Facility Grid software for commissioning projects (training will be provided)


BENEFITS

  • Home Based Position (no regular commute) with compensation for Home Office
  • Flexible working hours
  • Flexible Personal Time Off
  • Competitive salary based on experience
  • Medical, Dental and Vision Benefits
  • Retirement Plan
  • Reimbursement for home office and cell phone
  • Discretionary Bonus Program


GMC Commissioning provides Equal Employment Opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, GMC Commissioning complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.