Job Ref: # 4409424
Date Posted: 10/23/2026
Location: San Jose, CA
Salary (USD): $87,360 - $117,500
Description
The Field Service Engineer is responsible for installing, commissioning, maintaining, troubleshooting, and repairing high-purity water purification systems at laboratory, biotechnology, healthcare, and industrial customer facilities. This position combines hands-on mechanical and electrical troubleshooting, water quality verification, preventive maintenance, emergency repairs, and professional customer service to ensure reliable equipment operation and consistent water quality.
Responsibilities include installing and servicing reverse osmosis (RO), deionization (DI), electrodeionization (EDI), ultraviolet (UV), filtration, softening, and laboratory water purification systems. The Field Service Engineer will troubleshoot pumps, valves, membranes, resins, motors, sensors, and controls; perform water quality testing; and diagnose flow, pressure, electrical, and system performance issues. Additional responsibilities include interpreting technical drawings, coordinating customer service activities, maintaining calibrated testing equipment, documenting repairs and test results, and ensuring compliance with established safety procedures.
Must-Have Skills, Experience, and Education:
- Practical understanding of pumps, fluid systems, motors, controls, and water chemistry
- Strong mechanical and electrical troubleshooting aptitude
- Ability to install, troubleshoot, maintain, and repair water treatment or related mechanical and electrical equipment
- Ability to diagnose flow, pressure, electrical, control, and water quality problems
- Ability to identify equipment failures, determine root causes, and recommend corrective actions
- Ability to perform preventive maintenance, corrective maintenance, and emergency equipment repairs
- Ability to troubleshoot and replace pumps, valves, membranes, resins, instruments, motors, and control components
- Ability to use electrical diagnostic equipment and water quality testing instruments
- Ability to measure and document water quality parameters, including conductivity, resistivity, pH, and total dissolved solids (TDS)
- Ability to read and interpret Piping and Instrumentation Diagrams (P&IDs), electrical wiring diagrams, schematics, and equipment manuals
- Working understanding of electrical components, sensors, relays, and equipment controls
- Ability to troubleshoot equipment within established training and authorization limits
- Ability to complete accurate field service reports documenting test results, repairs, parts usage, labor, and service recommendations
- Ability to use mobile service software for work orders, reporting, and service documentation
- Strong customer service and communication skills
- Ability to explain technical findings, equipment conditions, and repair recommendations to customers
- Ability to coordinate customer site access, equipment downtime, and follow-up service activities
- Strong troubleshooting, analytical, and problem-solving skills
- Strong organizational and time-management skills
- Ability to work independently at customer facilities while maintaining professional communication with the service team
- Valid driver's license and ability to meet applicable company vehicle requirements
Requirements:
- Ability and willingness to travel to customer sites throughout the assigned service territory
- Ability to work occasional after-hours, weekend, emergency response, and scheduled on-call assignments as required
- Ability to work in mechanical rooms, laboratories, healthcare facilities, and industrial environments
- Ability to stand, bend, kneel, and climb ladders
- Ability to lift up to 50 pounds with appropriate assistance when needed
- Ability to follow Cal/OSHA requirements and established workplace safety procedures
- Ability to properly use personal protective equipment (PPE)
- Ability to follow chemical handling, electrical safety, and lockout/tagout (LOTO) procedures
- Ability to perform only work for which properly trained and authorized
- Ability to maintain calibrated testing equipment, service tools, parts inventory, and assigned company service vehicle
- Ability to comply with customer facility safety requirements and established service procedures
- Ability to maintain dependable attendance, timely service documentation, and professional customer communication
Nice-to Have Skills, Experience, and Education:
- 3+ years of relevant field service, industrial maintenance, water treatment, or laboratory equipment experience; equivalent training and experience considered
- Technical training or associate degree in Mechanical, Electrical, Water Treatment, or a related technical discipline
- High-purity water purification system experience
- Laboratory water purification equipment experience
- Reverse osmosis (RO) system installation, maintenance, and troubleshooting experience
- Deionization (DI) system experience
- Electrodeionization (EDI) system experience
- Ultraviolet (UV) water treatment equipment experience
- Water filtration and softening system experience
- Experience with ELGA laboratory water purification equipment
- Experience with MilliporeSigma laboratory water purification equipment
- Experience with comparable laboratory water purification systems
- Grundfos pump experience
- Fleck water treatment control experience
- Experience servicing UV treatment equipment
- Experience troubleshooting water purification systems in laboratory, biotechnology, healthcare, or regulated industrial facilities
- Familiarity with ASTM laboratory water quality specifications
- Familiarity with applicable Association for the Advancement of Medical Instrumentation (AAMI) standards
- Water treatment system commissioning experience
- Equipment calibration and qualification experience
- Programmable Logic Controller (PLC) troubleshooting experience
- Variable Frequency Drive (VFD) troubleshooting experience
- Automated process control system experience
- Experience troubleshooting sensors, relays, and electrical control systems
- Experience coordinating specialized Total Organic Carbon (TOC), microbial, or endotoxin testing
- Experience performing water quality verification and documenting system performance
- Experience conducting root cause analysis and reducing repeat equipment failures
Job Posting
