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This job expired on 22/09/2026. It no longer accepts applications.
Mechanical Technician – Water Treatment Plant
Alfanar Projects · Riyad
Job description
About the role
The Mechanical Technician will support start‑up, testing and commissioning of multiple water‑treatment units, including DMF, UF, SWRO, BWRO, CEDI and GTMDO. The role is hands‑on, ensuring reliable operation of pumps, dosing systems and related equipment while maintaining strict safety and quality standards.
Key responsibilities
- Assist in start‑up, testing and commissioning of water‑treatment units and chemical injection systems.
- Support pipeline flushing, hydro‑testing and pre‑commissioning activities.
- Monitor plant parameters, record operational data and perform routine inspections of pumps, vacuum pumps, blowers, valves, actuators and instrumentation.
- Maintain and troubleshoot dosing systems, perform chemical preparation, dosing calibration and system flushing.
- Carry out cleaning of strainers, cartridge filters and dosing lines; replace filters and verify SDI/turbidity.
- Perform back‑washing, air‑scouring and CIP for DMF, UF and RO systems.
- Track critical process and water quality parameters; calibrate conductivity, resistivity, pH, ORP, DO, CO₂ and flow/pressure instruments.
- Conduct grab sampling (conductivity, silica, DO, sodium) and reconcile results with online analyzers.
- Monitor chemical storage levels and support safe unloading and transfer of chemicals.
Required profile
- Diploma or degree in Mechanical Engineering or related field.
- 6‑10 years of experience in mechanical maintenance of water‑treatment or industrial plants.
- Physically fit with proficiency in hand and power‑tool usage.
- Strong communication skills, ability to follow instructions and work within scheduled delivery timelines.
- Commitment to safety procedures, quality standards and continuous improvement.
Required skills
- Pump and dosing system maintenance
- Calibration of conductivity, resistivity, pH, ORP, DO, CO₂ and flow/pressure instruments
- Back‑washing, air‑scouring and CIP (Clean‑In‑Place) operations
- Filter inspection, replacement and SDI/turbidity verification
- Chemical preparation and safe handling
- Pipeline flushing and hydro‑testing
- Routine plant parameter monitoring and data recording
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Alfanar Projects
Riyad