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Membrane Engineer Jobs in California (NOW HIRING)

Ardurra

Water Treatment Design Lead

Irvine, CA

$140K - $200K/yr

Lead and mentor a team of engineers, designers, and support staff to deliver high-quality, on-time ... Experience with physical-chemical modeling processes (RTW Software, Membrane Water Quality ...

Ardurra Group, Inc.

Water Treatment Design Lead

Irvine, CA · On-site

$140K - $200K/yr

Lead and mentor a team of engineers, designers, and support staff to deliver high-quality, on-time ... Experience with physical-chemical modeling processes (RTW Software, Membrane Water Quality ...

Ardurra

Water Treatment Design Lead

Ventura, CA

$140K - $200K/yr

Lead and mentor a team of engineers, designers, and support staff to deliver high-quality, on-time ... Experience with physical-chemical modeling processes (RTW Software, Membrane Water Quality ...

CECO Environmental

Engineer, Applications

Tustin, CA · On-site

$90K/yr

... and Membrane including Nanofiltration (NF), Reverse Osmosis (RO), and Ultrafiltration (UF)), Water Softening, Ion Exchange for Raw Water, Boiler Water, Cooling Water, Oily Water, Process Water ...

Compass Water

Engineer, Applications

Tustin, CA · On-site

... and Membrane including Nanofiltration (NF), Reverse Osmosis (RO), and Ultrafiltration (UF)), Water Softening, Ion Exchange for Raw Water, Boiler Water, Cooling Water, Oily Water, Process Water ...

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Showing results 21-40

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Membrane Engineer information

What is the difference between Membrane Engineer vs Process Engineer?

AspectMembrane EngineerProcess Engineer
CredentialsBachelor's or Master's in Chemical, Materials Science, or Mechanical Engineering; certifications varyBachelor's or Master's in Chemical, Mechanical, or Industrial Engineering; similar certifications
Work EnvironmentResearch labs, manufacturing plants, R&D facilitiesManufacturing plants, industrial facilities, R&D labs
Industry UsageWater treatment, desalination, gas separation, biomedical applicationsOil & gas, chemical processing, manufacturing, energy sectors

Membrane Engineers focus on designing and developing membrane technologies for separation processes, while Process Engineers optimize and manage overall manufacturing processes. Both roles require similar educational backgrounds and often work in overlapping environments, but their core responsibilities differ in scope and application.

What are some common challenges membrane engineers face when scaling up from lab-scale to industrial-scale membrane processes?

Membrane Engineers often encounter challenges related to membrane fouling, maintaining consistent performance, and ensuring cost-effective operation when scaling up from laboratory to industrial settings. Issues such as variations in feed water quality, larger system hydraulics, and the need for robust cleaning protocols become more pronounced at scale. Successful engineers collaborate closely with process engineers, maintenance teams, and quality control to troubleshoot and optimize systems for reliability and efficiency. Being proactive in addressing these challenges is key to the role and can lead to significant process improvements.

What is a membrane engineer?

Membrane engineers are professionals who design, develop, and optimize membrane-based systems for applications such as water purification, gas separation, and chemical processing. They work with various membrane materials and processes to achieve efficient separation of substances at the molecular or ionic level. Membrane engineers often collaborate with chemists, material scientists, and process engineers to improve membrane performance and durability. Their expertise is crucial in industries like wastewater treatment, pharmaceuticals, food processing, and energy.

What are the key skills and qualifications needed to thrive as a membrane engineer?

To thrive as a Membrane Engineer, you need a strong background in chemical engineering, materials science, or environmental engineering, often supported by a relevant degree and experience in membrane technology. Familiarity with simulation software (such as COMSOL Multiphysics), laboratory instrumentation, and industry standards or certifications like ISO 9001 is highly valuable. Strong analytical thinking, problem-solving abilities, and effective communication skills help set candidates apart in this role. These competencies enable the development, optimization, and implementation of advanced membrane systems essential for water treatment, gas separation, and sustainable industrial processes.
What are popular job titles related to Membrane Engineer jobs in California? For Membrane Engineer jobs in California, the most frequently searched job titles are:
What job categories do people searching Membrane Engineer jobs in California look for? The top searched job categories for Membrane Engineer jobs in California are:
What cities in California are hiring for Membrane Engineer jobs? Cities in California with the most Membrane Engineer job openings:
Membrane Engineer jobs near you
Infographic showing various Membrane Engineer job openings in California as of August 2026, with employment types broken down into 80% Full Time, and 20% Contract. Highlights an 100% In-person job distribution.

Wastewater Process Engineer

Resource Management Solutions

Los Angeles, CA

Full-time

Re-posted 19 days ago

Job description

A global engineering and construction firm specializing in water, environment, transportation, energy, and facilities is seeking an experienced Process Engineer for project/s with the City of Los Angeles, Bureau of Engineering (BOE), Environmental Engineering Division (EED). The project/s will be at the Hyperion Water Reclamation Plant in Los Angeles, CA.

This position is focused on process engineer services such as troubleshooting process related issues, prepare process descriptions and process flow diagrams, prepare/review piping, and instrumentation diagrams (P&IDs) and provide input on all project delivery activities that involves process scope of work. Must have thorough knowledge of all wastewater treatment processes from the Headworks facility through advanced treatment and be able to recommend solutions and improvements to wastewater processes. Good communication skills are important including the ability to translate and explain complex process issues. The process engineer will be required to stamp Process Flow drawings and needs to be a licensed Professional Civil Engineer in the State of California.


A global engineering and construction firm specializing in water, environment, transportation, energy, and facilities is seeking an experienced Process Engineer for project/s with the City of Los Angeles, Bureau of Engineering (BOE), Environmental Engineering Division (EED). The project/s will be at the Hyperion Water Reclamation Plant in Los Angeles, CA.

This position is focused on process engineer services such as troubleshooting process related issues, prepare process descriptions and process flow diagrams, prepare/review piping, and instrumentation diagrams (P&IDs) and provide input on all project delivery activities that involves process scope of work. Must have thorough knowledge of all wastewater treatment processes from the Headworks facility through advanced treatment and be able to recommend solutions and improvements to wastewater processes. Good communication skills are important including the ability to translate and explain complex process issues. The process engineer will be required to stamp Process Flow drawings and needs to be a licensed Professional Civil Engineer in the State of California.

Qualifications

  • Expert knowledge of the wastewater treatment principles and their translation to studies, designs, and construction of those facilities.
  • Expert knowledge in the areas of:
  1. Hydraulic calculations
  2. Process calculations/computer simulations
  3. Environmental chemistry
  4. Environmental biology
  • Expert knowledge of various processes such as: Headworks, primary clarifiers, aeration basins, secondary clarifiers, BNR processes, disinfection processes, anaerobic digestion, solids dewatering, digester gas management and cleaning, co-generation, membrane processes and advanced oxidation.
  • Expert in process selection and development.
  • Expert in the development of process flow diagrams, process descriptions, process mass and heat balances and P&ID’s.
  • Expert in process related environmental regulations.
  • Proven ability to publish in leading industry journals.
  • Ability to conduct pilot tests, independent investigations, collect data, document test results, and provide recommendations based on that data.
  • Ability to provide process trainings and deliver presentations to City staff.
  • Ability to anticipate problems and develop solutions to overcome problems.
  • Good communication skills, both written and oral.
  • Working knowledge of Microsoft Word, Excel, PowerPoint, and Project software.
  • Knowledgeable and capable of working with process simulation programs.
  • Aggressive and self-starting enough to research details and inform management of potential delays and problems.
  • Familiarity working within City organizations.
  • AutoCAD skills.
  • Good understanding of safety issues including Cal OSHA regulations.

Education/Certifications & more

  • Minimum education: BS or MS in Civil, Mechanical, Chemical or Environmental Engineering.
  • Licensed Professional Civil Engineer in the State of California.
  • A minimum of 10 years’ experience in the field of wastewater treatment.