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Entry Level Plumbing Engineer Jobs in California

Plumbing Designer At Salas O'Brien we tell our clients that we're engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That's why ...

This is a entry level position and may be combined with a State of California recognized training ... Develops through training program and then exhibits considerable knowledge of commercial plumbing ...

The Engineer I is an entry-level position, responsible for the upkeep of all exterior and interior ... Completes basic plumbing, HVAC, and electrical repairs as needed * Assists with any needed tile ...

We welcome both experienced professionals and entry-level candidates. The primary responsibilities ... Gas panel and gas loop plumbing * Mechanical and electrical assembly when not in the field ...

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Entry Level Plumbing Engineer information

What does an entry level plumbing engineer do?

An entry level plumbing engineer assists in the design, planning, and implementation of plumbing systems for residential, commercial, or industrial buildings. Their duties often include creating drawings, selecting appropriate materials, performing calculations, and ensuring designs comply with local codes and standards. They work under the supervision of senior engineers and may also visit construction sites to observe installations or resolve technical issues. This role is ideal for recent graduates with a degree in mechanical engineering or a related field who are looking to gain practical experience.

What are the key skills and qualifications needed to thrive as an entry level plumbing engineer?

To thrive as an Entry Level Plumbing Engineer, you need a bachelor's degree in mechanical or civil engineering, solid understanding of plumbing systems, and foundational knowledge of building codes. Familiarity with AutoCAD, Revit, and hydraulic calculation software is typically required, and EIT certification is often an advantage. Attention to detail, problem-solving ability, and strong communication skills help you collaborate effectively and deliver accurate designs. These skills ensure compliance, safety, and efficiency in plumbing system planning and execution.

What types of projects and tasks can an entry level plumbing engineer expect to work on during their first year?

As an entry level plumbing engineer, you will typically assist senior engineers with designing plumbing systems for a variety of building types, such as commercial offices, hospitals, or schools. Your daily tasks may include preparing drawings using CAD software, performing calculations for water supply and drainage, reviewing construction documents, and conducting site visits to observe installation. You'll also collaborate closely with architects and other engineering disciplines to ensure integrated system designs. This hands-on experience provides a strong foundation for learning industry standards and advancing to more complex responsibilities over time.

What is the difference between Entry Level Plumbing Engineer vs Plumbing Designer?

AspectEntry Level Plumbing EngineerPlumbing Designer
Required CredentialsBachelor's in Mechanical or Civil Engineering, Engineer-in-Training (EIT) certification often preferredBachelor's in Mechanical or Civil Engineering, EIT certification often preferred
Work EnvironmentDesign firms, consulting companies, construction sitesDesign firms, consulting companies, project planning environments
Employer & Industry UsageEntry-level roles in engineering firms, construction, and consultingEntry-level to senior roles in design and consulting firms
Common Search & ComparisonYesYes

The main difference between an Entry Level Plumbing Engineer and a Plumbing Designer lies in their focus. Entry Level Plumbing Engineers typically handle basic design tasks, calculations, and assist senior engineers, while Plumbing Designers focus more on creating detailed plumbing layouts and specifications. Both roles require similar educational backgrounds and certifications, and they often work in the same environments within engineering and consulting firms.

How do you get into entry level plumbing engineering with no experience?

Entry level plumbing engineers typically need a high school diploma or equivalent, along with technical training or an associate degree in plumbing, mechanical, or civil engineering. Gaining hands-on experience through apprenticeships or internships and developing skills in plumbing systems, CAD software, and safety standards can improve job prospects; some positions may also require relevant certifications or licenses.

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

The most popular types of Plumbing Engineer jobs in California are:

What job categories do people searching Entry Level Plumbing Engineer jobs in California look for?

The top searched job categories for Entry Level Plumbing Engineer jobs in California are:

Infographic showing various Entry Level Plumbing Engineer job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Entry-level Plumbing Designer

Vista, CA


Salas O'Brien, Inc.
Specialized Design Services • 201 - 500 employees

8.2

Company rating: 8.2 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

164th of 450 rated engineering

Great coworkers

People enjoy working here

Good employer


$36 - $41/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 11 days ago


Job description

Plumbing Designer 

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future. 

Building for the long-term means that all of our team members can expect to work on amazing projects with a people-first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high-impact career—and they’ll receive great total rewards along the way. 

About Us 

Founded in 1975, Salas O’Brien is an employee-owned engineering and professional services firm focused on achieving impact for our clients, our team, and the world. We know that tomorrow’s requirements are today’s opportunities, and we are here to design lasting solutions for pressing challenges. 

We work across a variety of industries providing integrated engineering and consulting services. Our specialized experience includes design for data centers, healthcare, science and technology, high-rise buildings, clean energy, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more. 

Our technical expertise is paired with an exceptional team of business development, human resources, finance and accounting, information technology, and marketing professionals, all of whom play a key role in bringing our commitments to life every day. 

Job Summary 

The Plumbing Designer supports the planning, design, and production of plumbing systems for a variety of building projects, including educational facilities, healthcare environments, military installations, hospitality venues, multifamily residential developments, and commercial buildings. Working under the direction of senior engineers and project managers, this role develops design documents utilizing Revit and AutoCAD while ensuring compliance with applicable codes, standards, and client requirements. 

Responsibilities 

  • Prepare plumbing system layouts and construction documents for various building types.  
  • Assist with the design of domestic water, sanitary waste and vent, storm drainage, natural gas, and specialty plumbing systems.  
  • Perform engineering calculations related to fixture counts, pipe sizing, storm drainage, and equipment selection.  
  • Assist in the selection and specification of plumbing equipment, including water heaters, booster pumps, sump pumps, and sewage ejectors.  
  • Develop and maintain Revit models and coordinate with architectural, structural, mechanical, and electrical disciplines.  
  • Research and apply applicable California Plumbing Code, local jurisdiction requirements, and industry standards.  
  • Participate in site surveys and field investigations to verify existing conditions.  
  • Support construction administration activities, including review of submittals, RFIs, and construction questions.  
  • Collaborate with project teams to meet project schedules, budgets, and quality expectations.  
  • Assist with preparing technical reports, specifications, and design documentation. 

Skills/Abilities 

  • Working knowledge of plumbing system design principles and building construction.  
  • Familiarity with California Plumbing Code and applicable industry standards.  
  • Strong proficiency in Revit MEP and AutoCAD.  
  • Effective verbal and written communication skills.  
  • Ability to work both independently and collaboratively within multidisciplinary teams.  
  • Strong organizational skills and attention to detail.  
  • Ability to manage multiple assignments and deadlines.  
  • Willingness to learn and develop technical expertise through mentorship and training. 

Qualifications and Experience 

  • 1-3 years of experience in plumbing design for commercial, institutional, healthcare, multifamily, or similar building projects.  
  • Associate's degree, technical certification, or Bachelor's degree in Mechanical Engineering, Architectural Engineering, Engineering Technology, or a related field preferred.  
  • Proficiency with Revit, AutoCAD, Bluebeam, and Microsoft Office.  
  • Familiarity with BIM coordination processes preferred.  
  • EIT certification or progress toward EIT is a plus.  
  • Experience with California projects and code requirements preferred. 

Travel: Up to 10% for site visits, field investigations, and project meetings. 

Location: Vista, CA 

Compensation & Benefits 

The expected compensation for this role is $36 – 41 USD per hour. Actual compensation will be determined based on a number of factors including skills, experience, qualifications, and location. 

This role is also eligible for performance-based bonuses, equity participation, and a comprehensive U.S.-based benefits package, including: 

  • Medical, dental, and vision insurance 
  • 401(k) with company match 
  • Paid time off and company holidays 
  • Wellness programs and employee assistance resources 
  • Professional development support 

Equal Opportunity Employment Statement 

Salas O’Brien provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, colour, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state/provincial, or local laws. Salas O’Brien will accommodate the disability-related needs of applicants as required by law. 

Third-Party Agency Notice 

Salas O’Brien does not accept unsolicited resumes from external recruiters or agencies. We only work with approved partners engaged directly by our Talent Acquisition team for specific searches. Unsolicited submissions will not be eligible for placement fees. 



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