Mechanical Engineer – Water Systems

Flexton Inc.; Berkeley (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Flexton Inc. in Berkeley, CA is seeking a Mechanical Engineer – Water Systems to design cooling water and process utility systems and develop P&IDs, flow diagrams, hydraulic calculations, and equipment specifications.

The role involves supporting pumps, heat exchangers, filtration, piping, valves, and water treatment systems, plus monitoring LCW/DI water systems and coordinating with installation teams. Strong communication and project-management skills are essential.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• 8+ years of mechanical/process/facility engineering experience.
• Strong experience with industrial/process water or closed-loop cooling systems.
• Knowledge of hydraulic and thermal system design, pumps, heat exchangers, piping, and P&IDs.
• Experience with water treatment, troubleshooting, root-cause analysis, and commissioning.
• Strong communication and project-management skills.

Responsibilities

• Design and engineer cooling water and process utility systems.
• Develop P&IDs, flow diagrams, hydraulic calculations, and equipment specifications.
• Support pumps, heat exchangers, filtration, piping, valves, and water treatment systems.
• Monitor and troubleshoot LCW/DI water systems, flow, temperature, pressure, and water quality.
• Lead maintenance, reliability, upgrades, commissioning, and startup activities.
• Coordinate with engineering, facilities, operations, vendors, contractors, and installation teams.
• Maintain engineering documentation and ensure compliance with safety and applicable codes.

Skills

Mechanical engineering

Project management

Communication

Education

Bachelor’s degree in Mechanical Engineering

Tools

EPICS/industrial controls

Job description

Only W2

Role:

Mechanical Engineer – Water Systems

Key Responsibilities:

• Design and engineer cooling water and process utility systems.
• Develop P&IDs, flow diagrams, hydraulic calculations, and equipment specifications.
• Support pumps, heat exchangers, filtration, piping, valves, and water treatment systems.
• Monitor and troubleshoot LCW/DI water systems, flow, temperature, pressure, and water quality.
• Lead maintenance, reliability, upgrades, commissioning, and startup activities.
• Coordinate with engineering, facilities, operations, vendors, contractors, and installation teams.
• Maintain engineering documentation and ensure compliance with safety and applicable codes.

Required Qualifications:

• Bachelor’s degree in Mechanical Engineering or related field.
• 8+ years of mechanical/process/facility engineering experience.
• Strong experience with industrial/process water or closed-loop cooling systems.
• Knowledge of hydraulic and thermal system design, pumps, heat exchangers, piping, and P&IDs.
• Experience with water treatment, troubleshooting, root-cause analysis, and commissioning.
• Strong communication and project-management skills.

Preferred:

• PE License.
• Experience in semiconductor, national laboratory, accelerator, data center, or other high-availability facilities.
• Experience with EPICS/industrial controls, reliability-centered maintenance, and large utility systems.