What are the responsibilities and job description for the Application Engineer position at Cullerton Group?
Cullerton Group is hiring an Application / Process Engineer for a full-time opportunity near Charlotte, NC. This is a highly technical role combining water treatment process/system design with applications engineering, including RFQs/RFPs, proposals, costing, equipment selection, and customer support.
Charlotte, NC | Hybrid
up to $130K total compensation full benefits
Full-Time | Permanent
The position will be onsite 5 days/week during the first 3 months for onboarding, then transition to a hybrid schedule of 2 days onsite and 3 days remote.
What You’ll Do
- Design complete water treatment and filtration systems
- Review RFQs/RFPs and develop technical proposals, scopes, and pricing
- Perform hydraulic calculations, pressure-loss analysis, and equipment sizing
- Develop PFDs and support P&IDs, layouts, and system documentation
- Select pumps, valves, filters, instrumentation, materials, and other system components
- Develop BOMs, data sheets, cost models, and quote packages
- Work directly with customers, sales, engineering, purchasing, and manufacturing
- Support projects from initial application and proposal through manufacturing, testing, and delivery
- Provide technical presentations and product/application training
What We’re Looking For
- Bachelor’s degree in Mechanical, Chemical, Environmental Engineering, or equivalent experience
- 3–5 years of water treatment system design, process engineering, or technical applications engineering experience
- Hands-on experience with water treatment/filtration systems
- Strong understanding of hydraulics, pressure loss, component sizing, and system integration
- Experience with PFDs/P&IDs and 3D CAD/design tools such as SolidWorks or AutoCAD
- Knowledge of pumps, valves, filters, tanks, sensors, instrumentation, and related process equipment
- Strong technical writing and customer-facing communication skills
Experience with filtration, reverse osmosis (RO), deionization (DI), or similar water-treatment technologies, along with previous experience supporting RFQs, proposals, costing, or engineered-system sales.
- Benefits
- Medical, dental & vision
- 401(k)
- PTO & holiday pay
- Occasional travel – up to 10%
If your background combines water-treatment process design with applications engineering, I’d love to connect. Please apply or message me directly to learn more.
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Salary : $120,000 - $130,000