Wastewater Nightshift O&M Technician Job Hillsboro area,Oregon USA,Manufacturing / Production

Lotus Works is an Engineering Services provider specializing in managing Commissioning, Construction Services, Calibration, Operations & Maintenance scopes of work within global manufacturing facilities. Lotus Works operates globally across EMEA and North America partnering with the world's leading manufacturers across the Semiconductor, Pharmaceutical & Biologics, Medical Device and Data Center sectors. Our team of Engineering and Technical professionals is immersed in cutting-edge technologies and innovations.

Lotus Works is committed to a diverse and inclusive workplace, integral to our people-first approach.

Lotus Works is seeking an experienced Wastewater Night shift O&M Technician to support the safe, reliable, and continuous operation of a Water Reclaim Plant (WRP) within a mission‑critical semiconductor manufacturing environment. This role is responsible for operating, monitoring, troubleshooting, and maintaining wastewater treatment and water‑reclamation systems to ensure regulatory compliance, water‑quality requirements, plant reliability, and maximum water recovery.

The ideal candidate will have strong hands‑on experience operating and maintaining industrial wastewater treatment systems and be comfortable working independently during night shift operations. This position requires strong troubleshooting skills, attention to detail, and the ability to respond effectively to alarms, equipment failures, process upsets, and water‑quality excursions.

Responsibilities

Operate and maintain the Water Reclaim Plant to ensure continuous, safe, and reliable treatment and recovery of facility wastewater streams.
Monitor plant performance through SCADA/HMI systems, field inspections, operator rounds, alarms, trends, and analytical results.
Operate treatment processes including equalization, pH adjustment, clarification, filtration, membrane treatment, biological treatment, and polishing systems, as applicable.
Operate and monitor advanced treatment systems such as UF, RO, NF, M , media filtration, activated carbon, ion exchange, and other treatment technologies where installed.
Monitor and optimize water recovery rates, reject rates, membrane performance, and overall plant treatment efficiency.
Monitor critical process parameters including flow, pressure, differential pressure, pH, conductivity, ORP, turbidity, TOC, TSS, temperature, and chemical concentration.
Perform routine sampling and field analytical testing to verify treatment performance and reclaimed‑water quality.
Collect process and compliance samples for laboratory analysis in accordance with established sampling plans and procedures.
Monitor incoming wastewater characteristics and identify changes that could impact biological, membrane, chemical, or downstream treatment processes.
Adjust chemical dosing based on process conditions, analytical results, flow rates, and treatment requirements.
Operate and maintain chemical systems including acid, caustic, coagulant, flocculant, antiscalant, biocide, sodium hypochlorite, bisulfite, and other treatment chemicals, as applicable.
Monitor chemical inventories and coordinate replenishment to prevent interruptions to plant operations.
Operate equalization tanks, transfer pumps, lift stations, feed pumps, recirculation pumps, chemical pumps, mixers, blowers, and associated equipment.
Monitor tank levels and manage plant flows to prevent overflow, low‑level conditions, hydraulic overload, or loss of treatment capacity.
Perform startup, shutdown, isolation, and return‑to‑service activities for treatment systems and equipment.
Perform routine backwash, flushing, clean‑in‑place (CIP), regeneration, and membrane cleaning activities.
Monitor membrane differential pressure, normalized permeate flow, rejection…