Water-Process / Mechanical Engineer – Pumps & Water Treatment

CooperBuild; Washington (District of Columbia); Hybrid; USD 95,000 - 135,000; Full time

Job summary

CooperBuild seeks an experienced Water-Process / Mechanical Engineer for an onsite project in Washington, DC, focusing on pumps, hydraulics, and water-treatment systems.

The role involves sizing and selecting pumps, reviewing operation and maintenance, modeling hydraulics, and producing PFDs and drawings while coordinating with field teams and vendors. Onsite work in DC is required.

Qualifications

• Degree in Mechanical Engineering or related discipline with emphasis on pumps and hydraulics.
• Experience with pumps, piping, valves, filtration, and hydraulic systems.
• Experience with water-treatment or recirculating-water systems preferred.
• Ability to read PFDs and piping/mechanical drawings and produce as-built docs.
• Strong field troubleshooting and communication skills; able to work onsite in DC.

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 hydraulic calculations and modeling; produce and review PFDs and drawings.
• Coordinate with field personnel, contractors, vendors, and project teams.
• Support ozonation, disinfection, and water-treatment equipment startup and commissioning.
• Coordinate instrumentation, pump controls, VFDs, and related control systems.

Skills

Pumps & hydraulics

Field troubleshooting

PFDs & drawings

Technical communication

PLC/SCADA coordination

Education

Bachelor's degree in Mechanical Engineering

Water resources or environmental engineering related discipline

Tools

CAD/drafting tools

Job description

Water-Process / Mechanical Engineer – Pumps & Water Treatment

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.