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On Call Reverse Osmosis Engineer Jobs (NOW HIRING)

Long Island Clean Water Service, Inc.

Apprentice

Janesville, WI · On-site

$15.25 - $19.50/hr

  • Retirement

We provide various water conditioning products, including reverse osmosis drinking systems, iron ... up, programming, and testing of water treatment equipment. • Maintain a clean, and healthy ...

Xylem

Application Engineer III

Houston, TX · On-site

The Application Engineer III will focus on complex wastewater and process water solutions across ... reverse osmosis, Clean-In-Place (CIP) systems, regenerable Ion Exchange (IX), and Continuous ...

National Constitution

Building Engineer

Philadelphia, PA · On-site

$38.96/hr

... reverse osmosis units and stills), clean steam, building steam and condensate, compressed air and vacuum systems. Maintains logs, necessary paperwork, and completes documentation. Documents work ...

WSP

Manager, Management Consultancy

Indianapolis, IN · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... to engineers, investment bankers, financial analysts, legal counsel, and internal-client ... Demonstrated expertise in Reverse Osmosis treatment processes and membrane performance modeling

WSP

Manager, Management Consultancy

Indianapolis, IN · On-site

$110 - $170/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... to engineers, investment bankers, financial analysts, legal counsel, and internal-client ... D.) Familiarity with cutting-edge Reverse Osmosis treatment processes and related membrane ...

Xylem

Application Engineer III

Pittsburgh, PA · On-site

The Application Engineer III will focus on complex wastewater and process water solutions across ... reverse osmosis, Clean-In-Place (CIP) systems, regenerable Ion Exchange (IX), and Continuous ...

Xylem

Application Engineer III

Morton Grove, IL

The Application Engineer III will focus on complex wastewater and process water solutions across ... reverse osmosis, Clean-In-Place (CIP) systems, regenerable Ion Exchange (IX), and Continuous ...

Xylem

Application Engineer III

Colorado Springs, CO

The Application Engineer III will focus on complex wastewater and process water solutions across ... reverse osmosis, Clean-In-Place (CIP) systems, regenerable Ion Exchange (IX), and Continuous ...

Xylem

Application Engineer III

Charlotte, NC

The Application Engineer III will focus on complex wastewater and process water solutions across ... reverse osmosis, Clean-In-Place (CIP) systems, regenerable Ion Exchange (IX), and Continuous ...

JLL

Lead Operating Engineer

Redmond, WA · On-site

$114K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Monitor operation, adjust, and maintain refrigeration, chilled water, reverse osmosis system, air ... Operating Engineer (BOC) or other applicable licenses is a plus with Universal CFC (EPA608) license ...

Culligan

Industrial Service Technician

Fletcher, NC · On-site

$30 - $35/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

From reverse osmosis and deionization systems to specialized boiler feed and parts rinsing ... Participate in an on-call rotation for after-hours customer support. * Travel throughout the ...

CECO Environmental

Engineer, Applications

Tustin, CA · On-site

$90K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

The Application Engineer (AE) supports CECO Environmental's Industrial Water (IW) platform and ... Create and Develop RO (Reverse Osmosis), instrumentation and control designs according to specified ...

WSP

Manager, Management Consultancy

Indianapolis, IN

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... to engineers, investment bankers, financial analysts, legal counsel, and internal-client ... Demonstrated expertise in Reverse Osmosis treatment processes and membrane performance modeling

CECO Environmental

Engineer, Applications

Tustin, CA · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

The Application Engineer (AE) supports CECO Environmental's Industrial Water (IW) platform and ... Create and Develop RO (Reverse Osmosis), instrumentation and control designs according to specified ...

CECO Environmental

Engineer, Applications

Tustin, CA · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

The Application Engineer (AE) supports CECO Environmental's Industrial Water (IW) platform and ... Create and Develop RO (Reverse Osmosis), instrumentation and control designs according to specified ...

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All JobsOn Call Reverse Osmosis Engineer Jobs

On Call Reverse Osmosis Engineer information

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$82K

$136.3K

$195K

How much do on call reverse osmosis engineer jobs pay per year?

As of Aug 16, 2026, the average yearly pay for on call reverse osmosis engineer in the United States is $136,286.00, according to ZipRecruiter salary data. Most workers in this role earn between $89,000.00 and $178,000.00 per year, depending on experience, location, and employer.

What are the most commonly searched types of Reverse Osmosis Engineer jobs?

The most popular types of Reverse Osmosis Engineer jobs are:

On Call Reverse Osmosis Engineer jobs near you
Infographic showing various On Call Reverse Osmosis Engineer job openings in the United States as of August 2026, with employment types broken down into 1% Locum Tenens, 1% As Needed, 77% Full Time, 15% Part Time, and 6% Contract. Highlights an 96% Physical, 1% Hybrid, and 3% Remote job distribution, with an average salary of $136,286 per year, or $65.5 per hour.

Sr. Process Engineer - Semi Conductor (Remote with travel)

Parsons Corporation

Boise, ID • On-site

$99K - $128K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 6 days ago

Parsons rating

7.7

Company rating: 7.7 out of 10

Based on 46 frontline employees who took The Breakroom Quiz

263rd of 449 rated engineering

Job description

In a world of possibilities, pursue one with endless opportunities. Imagine Next!
At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what's possible.
Job Description:
Parsons is seeking a Senior Process Engineer - Semiconductor Water Treatment / Ultrapure Water with strong experience supporting advanced manufacturing and semiconductor facilities. The ideal candidate will have demonstrated expertise in ultrapure water (UPW), industrial water treatment, and wastewater treatment systems within semiconductor or other high-purity manufacturing environments.
*********Candidates should either be based in Boise, Idaho or can work remote and travel to Boise 2 weeks/month. *************
The Senior Process Engineer will lead process engineering activities associated with water and wastewater treatment systems, working closely with multidisciplinary teams to develop, optimize, and implement solutions that meet client, regulatory, operational, and reliability requirements.
Key Responsibilities
  • Lead the design, development, and optimization of ultrapure water, industrial water treatment, and wastewater treatment systems for semiconductor manufacturing facilities.
  • Support semiconductor fab projects involving UPW production and distribution, wastewater treatment, water reclamation/reuse, and associated process utility systems.
  • Develop and review process flow diagrams (PFDs), P&IDs, process calculations, equipment specifications, data sheets, and design documentation.
  • Perform water and mass balances, hydraulic calculations, equipment sizing, chemical consumption calculations, and treatment system evaluations.
  • Develop and evaluate treatment processes utilizing technologies such as reverse osmosis (RO), ultrafiltration (UF), ion exchange, electrodeionization (EDI), demineralization, filtration, chemical treatment, and polishing systems.
  • Establish process design criteria, water quality requirements, operating parameters, and equipment requirements for water treatment systems.
  • Evaluate vendor treatment technologies, equipment selections, technical proposals, and supplier submittals.
  • Collaborate with mechanical, piping, electrical, instrumentation and controls, civil/structural, and manufacturing teams to integrate treatment systems into overall facility design.
  • Interface with clients, vendors, and project teams to resolve technical issues and maintain alignment with project requirements.
  • Perform process troubleshooting, system performance evaluations, and technical assessments for existing and proposed treatment systems.
  • Ensure engineering deliverables comply with applicable industry standards, environmental requirements, safety requirements, and client specifications.
  • Support commissioning, startup, system optimization, and operational readiness activities.
  • Provide technical guidance and mentorship to junior engineers and designers.

Required Qualifications
  • Bachelor's degree in Chemical Engineering, Environmental Engineering, or a related engineering discipline.
  • 8+ years of relevant process engineering experience.
  • Demonstrated experience in industrial water and/or wastewater treatment process design.
  • Demonstrated experience with ultrapure water (UPW) or high-purity water systems.
  • Strong knowledge of water treatment technologies such as:
    • Reverse osmosis (RO)
    • Ultrafiltration (UF)
    • Ion exchange
    • Electrodeionization (EDI)
    • Demineralization
    • Filtration and polishing systems
    • Chemical treatment systems
    • Wastewater treatment and water reuse systems
  • Strong understanding of water chemistry, treatment process selection, water quality requirements, and system performance.
  • Proficiency in developing and reviewing:
    • Process Flow Diagrams (PFDs)
    • Piping and Instrumentation Diagrams (P&IDs)
    • Water and mass balances
    • Process calculations
    • Equipment and system specifications
    • Process data sheets and design documentation
  • Ability to evaluate and specify water treatment equipment and vendor packages.
  • Strong analytical, communication, collaboration, and problem-solving skills.
  • Ability to work on-site in Boise, Idaho, or relocate as needed.

Preferred Qualifications
  • Experience with water treatment systems supporting semiconductor fabs, microelectronics, or other advanced manufacturing facilities.
  • Experience with large-scale UPW systems, wastewater treatment systems, and water reclamation/reuse applications.
  • Experience supporting semiconductor fab expansions, retrofits, or greenfield projects.
  • Familiarity with semiconductor facility process utilities and high-purity manufacturing requirements.
  • Experience with commissioning, startup, troubleshooting, and optimization of water treatment systems.
  • Knowledge of project delivery in EPC, design-build, or consulting engineering environments.
  • Professional Engineer (PE) license or ability to obtain.
  • Master's degree in engineering or a related discipline.

Why Join Parsons
At Parsons, we're committed to delivering innovative engineering solutions on some of the world's most complex projects. We value technical excellence, collaboration, integrity, and a forward-thinking approach to problem-solving. Joining our team means working alongside talented professionals while helping shape the future of advanced manufacturing and semiconductor infrastructure.
Security Clearance Requirement:
None
This position is part of our Critical Infrastructure team.
For more than 80 years, our experts have designed and delivered the critical infrastructure that connects and protects communities around the world. We work in collaborative teams, both within the company and with our partners and customers, to plan, design, build, and modernize infrastructure. We take special pride in projects and solutions that improve communities as well as people's quality of life by promoting economic growth, enhancing mobility, and increasing sustainability and resiliency. Powered by our people, we provide the imagination necessary to support our customers' visions-and to help them see what's next!
Salary Range: $88,400.00 - $154,700.00
We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!
This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled.
Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.
We truly invest and care about our employee's wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest-APPLY TODAY!
Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.

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