Job Description

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Membrane Application Engineer

We are seeking a high-impact Membrane Application Engineer with proven experience designing and delivering complete water treatment systems—not just components. This role is responsible for translating water quality challenges into fully engineered, field-deployable solutions, with ownership from water-in characterization through water-out performance delivery.

This is a hands-on, application-focused role requiring both process design expertise and real-world system experience, particularly with OEM-integrated treatment systems.

The position serves as a key technical resource supporting sales, project execution, manufacturing, and field service teams. Responsibilities include evaluating water chemistry, developing treatment strategies, preparing technical proposals, supporting pilot studies, and providing startup and commissioning support.

What You Will Do

End-to-End System Design

• Lead full-scope process design from:
• Raw water characterization and risk assessment
• Pretreatment strategy (media filtration, softening, chemical dosing)
• Membrane system design and integration
• Final polishing and compliance to water quality specs
• Design complete treatment trains including:
• Ion exchange (softeners, demin systems)
• Ultrafiltration (UF), Microfiltration (MF)
• Reverse Osmosis (RO), Nanofiltration (NF)
• Post-treatment (UV, polishing, storage)

Membrane Technology Leadership

• Serve as the technical authority on membrane systems, including:
• Membrane selection across OEM vendors
• Performance modeling and scaling projections
• Fouling risk assessment (organic, inorganic, biological)
• Optimize system performance by integrating:
• Pretreatment strategies
• Chemical programs (antiscalants, biocides, cleaners)
• Cleaning (CIP) protocols

Application & Field Execution

• Translate designs into practical, installable systems that perform in real-world conditions
• Support:
• System commissioning and startup
• Performance troubleshooting and optimization
• Root cause analysis for fouling, scaling, and failure events
• Partner closely with engineering, field service, and commercial teams to ensure successful project delivery

Engineering & Commercial Impact

• Deliver cost-effective, reliable, and scalable solutions for industrial and municipal customers
• Support proposal development, system sizing, and technical justification
• Provide expertise in customer-facing discussions and solution positioning

Required Experience

• 3–5+ years of experience designing and applying water treatment systems in real-world environments
• Proven experience with complete system integration, not just individual components
• Strong working knowledge of: RO, UF, NF, MF membrane systems
• Pretreatment processes and system dependencies
• Ion exchange and high-purity water systems
• Demonstrated ability to interpret water chemistry and translate into engineered designs

Preferred Background

• Experience with OEM system integrators or packaged system providers
• Hands-on involvement in startup, commissioning, or field troubleshooting
• Familiarity with industrial applications such as:
• Food & beverage
• Power / boiler systems
• Manufacturing or reuse / wastewater

Technical Skill Set

• Process design and system sizing
• Membrane modeling tools
• Strong understanding of fouling, scaling, and chemical control strategies
• Ability to balance performance, cost, and operability

Sound like a fit for you?

If yes, jump aboard, and apply today.

A little about us

Applying for a new job is a little like entering uncharted territory. We want you to feel 100% confident about the application process, the position and our company before committing your time to apply, so that none of the above comes as a surprise. Let’s start with some information about our company, Chem-Aqua, so you can get to know us better.

Chem-Aqua is a subsidiary company of NCH Corporation, a privately held, family-owned, global business headquartered in Irving, Texas, near Dallas. NCH has more than 7,500 employees, offices and facilities on six continents, and clients in more than 50 countries. This includes the corporate headquarters as well as the other subsidiary companies. We clean and conserve water, save energy, and deliver best-in-class maintenance solutions, with a focus on industrial and commercial businesses.

• About Chem-Aqua and our history
• Our products and solutions
• NCH brands and divisions

Culture and benefits

We’re a global company with a family feel, offering the same benefits of an international corporation with the personal relationships of a small business. Working in our small teams and close-knit environment, you’d never guess we had a 7,500+ employee head count. We realize a job is more than just a job – it’s an extension of your life and family – and we’re committed to maintaining just that. For us, culture is not just a perk; it’s essential to how we thrive. And that’s speaking for 100 years in the business!

• Employee-centric environment (regular corporate activities, personal relationships, small teams)
• Family-first attitude (work-life balance support, paid parental leave, flexible hours)
• Approachable leadership (collaboration with top leaders, open-door policy)
• Growth-oriented mindset (autonomy, creative freedom to explore new ideas)
• Paid vacation and holiday leave
• Wellness initiatives (on-site fitness facility and cafeteria, planned activities)
• Community involvement (volunteering, fundraisers, charity events, school sponsorships and donations)
• Employee recognition programs (appreciation week, awards and ceremonies)
• Personal and professional development and growth
• Financial wellness (retirement options, 401K match)
• Benefits package (medical, dental, vision, life, long and short-term disability)

If this sounds like a fit for you so far, keep reading.

For next steps, expect a direct phone or email response once we are able to review your application. We are committed to responding to all applicants, no matter the outcome, so we appreciate your patience to allow time for this. In the meantime, learn more about Chem-Aqua and our culture by checking out our LinkedIn or Facebook pages.

We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class.