ZipRecruiter

Log In

2

Entry Level Commissioning Engineer Jobs in California

Dennis Group

Entry Level Process Engineer

Carlsbad, CA

$78K - $82K/yr

They provide expertise in flow diagrams, alterations, constraints, piping and instrumentation diagrams (P&ID), layout, install, and commissioning and start-up. Process Engineers enable operational ...

Partner Energy

Energy Engineer I

Torrance, CA · On-site +1

$60K - $70K/yr

... SUMMARY The Energy Engineer I is an entry-level role that supports PARTNER's Energy ... Support preliminary energy and water audits, commissioning tasks, and green certification ...

Partner Energy

Energy Engineer I

Torrance, CA · On-site

$60K - $70K/yr

... SUMMARY The Energy Engineer I is an entry-level role that supports PARTNER's Energy ... Support preliminary energy and water audits, commissioning tasks, and green certification ...

ImmunityBio, Inc.

Validation Engineer I

El Segundo, CA · On-site

$98K/yr

Experience with facility commissioning and validation of equipment and facilities is required ... (entry-level qualifications) to $98,000 (highly experienced) annually The application window is ...

Trimark Associates

Associate Meter Engineer

Folsom, CA · On-site

Salary: $80,000 - $85,000 Description The Associate Meter Engineer is an entry-level engineering ... Works with meter technicians in the field to learn installation and commissioning of metering ...

next page

Showing results 1-20

All JobsCommissioning Engineer JobsEntry Level Commissioning Engineer JobsEntry Level Commissioning Engineer Jobs in California

Entry Level Commissioning Engineer information

See California salary details

$39.5K

$102.1K

$163.3K

How much do entry level commissioning engineer jobs pay per year?

As of Jul 30, 2026, the average yearly pay for entry level commissioning engineer in California is $102,097.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,500.00 and $128,300.00 per year, depending on experience, location, and employer.

What is the difference between Entry Level Commissioning Engineer vs Junior Mechanical Engineer?

AspectEntry Level Commissioning EngineerJunior Mechanical Engineer
Required CredentialsBachelor's in Mechanical/Electrical Engineering, relevant certificationsBachelor's in Mechanical Engineering, internships or co-op experience
Work EnvironmentOn-site commissioning of systems, collaboration with construction teamsDesign, analysis, and development in office or lab settings
Employer & Industry UsageConstruction, energy, industrial plantsManufacturing, product design, R&D

The Entry Level Commissioning Engineer focuses on testing and starting up systems on-site, ensuring they operate correctly. In contrast, a Junior Mechanical Engineer typically works on designing and analyzing mechanical systems in an office or lab environment. While both roles require engineering degrees, the commissioning engineer emphasizes fieldwork and system validation, whereas the junior mechanical engineer concentrates on design and development tasks.

What are the most commonly searched types of Commissioning Engineer jobs in California? The most popular types of Commissioning Engineer jobs in California are:
What are popular job titles related to Entry Level Commissioning Engineer jobs in California? For Entry Level Commissioning Engineer jobs in California, the most frequently searched job titles are:
What job categories do people searching Entry Level Commissioning Engineer jobs in California look for? The top searched job categories for Entry Level Commissioning Engineer jobs in California are:
Entry Level Commissioning Engineer jobs near you
Infographic showing various Entry Level Commissioning Engineer job openings in California as of July 2026, with employment types broken down into 93% Full Time, and 7% Contract. Highlights an 92% In-person, and 8% Hybrid job distribution, with an average salary of $102,097 per year, or $49.1 per hour.

Mechanical Systems Engineer- Entry Level 2026

Solar Turbines Incorporated

San Diego, CA • On-site

$72K - $108K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 27 days ago

Solar Turbines rating

8.4

Company rating: 8.4 out of 10

Based on 23 frontline employees who took The Breakroom Quiz

83rd of 487 rated machine equipment manufacturers

Job description

Career Area:
Engineering
Job Description:
Your Work Shapes the World at Caterpillar Inc.
When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.
Mechanical Systems Engineer- Entry Level 2026
Job Summary:
Solar Turbines Inc. has an opportunity within the Custom Solutions Engineering group for a motivated, creative, high performing Engineer to join an elite team and work in a fast-paced project execution environment.
Job Accountabilities:
The successful candidate will be responsible for the design of the turbo machinery mechanical systems. This includes the creation of the Process & Instrumentation Diagram (P&ID). The P&ID is a schematic illustration of the functional process relationship of piping, instrumentation and system equipment components. It is used to define Bill of Material parts, as a manufacturing aid, and by the Customer for Field process planning. The Mechanical Systems Engineer will be trained in how to size valves, coolers, motors and piping. All the components that are needed to support the turbo machinery package systems are defined by the Application Check Sheet (ACS).
This role may also be responsible for the creation of parts, updating bills of materials, and drawings to support production and customer needs. A high level of support, coordination, and communication with other engineers and support organizations is expected. In addition, this may involve coordination with purchasing and suppliers to specify custom components and assist in the resolution of technical issues from the field. Support for inter-departmental and corporate process improvement initiatives is also expected.
Additional duties include supporting field personnel during commissioning and the resolution of safety critical risk assessments. This position provides opportunities to travel to support Customer Design Review meetings, Hazard and Operability Study (HAZOP) meetings, and support installed equipment in the Field.
This position requires excellent organization and time management abilities, effective problem solving and communication skills, as well as the ability to work effectively in a team environment. The Mechanical Systems Engineer will apply analysis techniques to size valves, motors, piping systems, and other package components and should have a basic understanding of Fluids, Pressures, Heat Transfer and Thermodynamics.
Basic Qualifications:
  • Bachelor of Science in Engineering
  • GPA 2.8 or above

Top Candidates Have:
  • Experience with Gas Turbine Systems and their operation
  • Exposure to Process & Instrumentation Diagrams
  • Ability to work in a fast paced, team environment, capable of handling multiple projects with competing priorities, while meeting project deadlines and commitments

Summary Pay Range:
$72,360.00 - $108,540.00
Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.
Benefits:
Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.
  • Medical, dental, and vision benefits*
  • Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
  • 401(k) savings plans*
  • Health Savings Account (HSA)*
  • Flexible Spending Accounts (FSAs)*
  • Health Lifestyle Programs*
  • Employee Assistance Program*
  • Voluntary Benefits and Employee Discounts*
  • Career Development*
  • Incentive bonus*
  • Disability benefits
  • Life Insurance
  • Parental leave
  • Adoption benefits
  • Tuition Reimbursement

* These benefits also apply to part-time employees
This position requires working onsite five days a week.
Relocation is available for this position.
Visa Sponsorship is not available for this position.
Posting Dates:
July 24, 2026 - July 30, 2026
Any offer of employment is conditioned upon the successful completion of a drug screen.
Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.
Not ready to apply? Join our Talent Community.

What Solar Turbines employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply