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Applications Engineer - Industrial Water Systems

Location: Tustin,CA, US

Date Posted: 08-07-2026

Experience: Mid Level

Salary: $95,000 - $125,000 per year

Job Details

In this role, you will support the Industrial Water platform and market expansion across the Americas. This role is responsible for developing technical solutions and preparing proposals for a comprehensive portfolio of products and services, including components, standard systems, custom integrated systems, and field services for industrial water and wastewater treatment applications.

Reporting to the Director of Engineering, you will collaborate closely with Engineering, Drafting, Business Development, Sales, Marketing, Production, and Purchasing teams.

• Provide technical support to Business Development and Sales teams by understanding customer requirements and developing tailored solutions and proposals.
• Contribute to monthly, quarterly, and annual sales targets, including bookings and margin performance.
• Interpret technical specifications and bid documents; prepare technical, commercial, and legal proposal responses to maximize win probability.
• Design and develop Reverse Osmosis (RO), instrumentation, and control systems for standard and custom projects using forecasting software.
• Develop cost-effective solutions in collaboration with Supply Chain to strengthen competitive positioning.
• Prepare water mass balances and system performance projections.
• Partner with Drafting to produce PFDs, P&IDs, general arrangements, equipment layouts, and supporting documentation for proposals and post-award submittals.
• Collaborate with Purchasing, Production, and Supply Chain to prepare detailed cost estimates and project pricing models.
• Develop comprehensive technical and commercial proposals, including process descriptions, scopes of work, equipment lists, and performance guarantees within customer deadlines.
• Support Project Management and Engineering post-award through submittals, production, installation, commissioning, performance testing, and warranty support.
• Build and maintain strong relationships with End Users, EPC firms, and Engineering Consultants.
• Manage project and sales data and communicate updates effectively across the global sales team.
• Perform other related duties as assigned.

• Bachelor’s degree in Chemical, Mechanical, or Process Engineering (or equivalent experience).
• 4+ years of experience in application engineering and proposal development for custom industrial water and wastewater treatment systems, including aeration, clarification, disinfection, media and membrane filtration (NF, RO, UF), water softening, ion exchange, and systems for raw water, boiler water, cooling water, oily water, process water, produced water, ultrapure water, and wastewater treatment.
• Experience modeling treatment solutions based on influent water analysis and effluent quality requirements to meet customer CapEx and OpEx objectives.
• Knowledge of technical, commercial, and legal principles related to proposals, costing, pricing, and contract negotiations for risk mitigation.

• Up to 25% travel required; ability to travel internationally preferred.

We are a global engineering and manufacturing company that designs industrial water and wastewater treatment systems, especially for regulated environments like marine, offshore, and industrial operations. We are known for our membrane-based technologies that help companies meet enviornmental discharge regulations and operate safety and efficiently.

We are currently seeking an Sales Engineer which offers the opportunity to contribute to innovative engineering projects that support critical industrial applications.

Our work is custom and project-based, heavy on the problem solving.

Please note we are unable to accept visa candidates at this time.

• Unlimited PTO
• Excellent Benefits
• 401k + Match

Also, you'll be working on technology that directly protects the environment and helps industries operate more responsibly.

#engineering #membrane #disinfection #reverse-osmosis #ultrafiltration #aeration #integrated-industrial-water-systems #integrated-wastewater-treatment-systems #media-filtration #membrane-filtration #nanofiltration #tier4