Water-Process / Mechanical Engineer – Pumps & Water Treatment
Washington, DC · Onsite · Full-Time / Project-Based
About the Role
CooperBuild is seeking an experienced Water-Process / Mechanical Engineer for an onsite project in Washington, DC.
This position is focused on pumps, piping, hydraulics, water circulation, filtration, drainage, and water-treatment systems.
Key Responsibilities
- Select, size, evaluate, and troubleshoot pumps and pumping systems
- Review and support pump operation and maintenance requirements
- Analyze piping, valves, flow, pressure, head loss, and hydraulic performance
- Perform or review hydraulic calculations and modeling
- Work with pool circulation, filtration, and water-transfer systems
- Review drainage, sump, and associated pumping systems
- Support ozonation, chemical-feed, disinfection, and water-treatment equipment
- Troubleshoot pumps, valves, filters, piping, controls, and other mechanical-room equipment
- Support equipment startup, testing, and commissioning
- Coordinate instrumentation, pump controls, VFDs, PLC/BAS/SCADA, and related control systems
- Produce and review process-flow diagrams (PFDs), mechanical/piping drawings, equipment documentation, and as-built hydraulic documentation
- Coordinate with field personnel, contractors, vendors, and project management teams
Preferred Qualifications
- Degree in Mechanical Engineering, Water Resources Engineering, Environmental Engineering, Process Engineering, or a related discipline
- Demonstrated experience with pumps, piping, valves, filtration, and hydraulic systems
- Experience with water-treatment or recirculating-water systems
- Experience with pools, fountains, reservoirs, pump houses, water/wastewater facilities, or similar systems is highly desirable
- Understanding of pump curves, flow rates, pressure/head calculations, pipe sizing, and system hydraulics
- Experience with chemical-feed, disinfection, ozonation, filtration, or comparable treatment processes preferred
- Mechanical-room troubleshooting and commissioning experience
- Ability to read and produce PFDs, piping/mechanical drawings, equipment schedules, and as-built documentation
- Strong field troubleshooting and technical communication skills
- Must be able to work onsite in Washington, DC
Candidates We Are Looking For
Strong candidates may come from backgrounds such as water/wastewater treatment, pump systems, hydraulic engineering, pool/fountain systems, industrial water processes, process mechanical engineering, or pump-house operations.
Candidates whose experience is primarily HVAC, air conditioning, ventilation, ductwork, AHUs, or conventional building mechanical design should have substantial additional experience with pumps, piping, hydraulics, filtration, or water-treatment systems to be considered.
How to Apply
Please submit your resume highlighting your experience with pumps, hydraulics, filtration, water treatment, and mechanical-room systems.