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Process Manager

Abunayyan Holding
Riyadh Region, KSA
Full-time
Mid-Senior
Onsite
Discovered 4 days ago
Water treatment processesWastewater and industrial wastewater treatmentReverse osmosis (brackish water and seawater)Biological wastewater treatmentBioWinRO projection tools

Full Job Posting

Role purpose

Leads process engineering for water, wastewater, and industrial wastewater treatment projects from concept and proposals through engineering, commissioning support, and performance validation.

Ensures solutions are technically sound, safe, economical, compliant, and integrated with other engineering disciplines.

Process design and simulation

  • Develop treatment solutions, design criteria, process guarantees, design margins, technology selections, and process philosophy.
  • Prepare and approve calculations, mass balances, hydraulic profiles, equipment sizing, PFDs, P&IDs, control narratives, and process datasheets.
  • Perform biological simulations, primarily using BioWin, and membrane projections for brackish and seawater RO, ultrafiltration, EDI, and related systems.
  • Check alignment between calculations, software outputs, vendor selections, and contractual performance requirements.

Team, equipment, and coordination

  • Plan and review work by process engineers and drafting personnel; control deliverable quality, traceability, and schedule.
  • Mentor the team and standardize technical methods, templates, and design practices.
  • Select, size, and specify pumps, blowers, fans, vessels, valves, orifices, cooling towers, absorbers, strippers, filters, and sludge dewatering equipment.
  • Coordinate technical interfaces with mechanical, piping, civil, structural, electrical, instrumentation, automation, proposals, procurement, construction, and commissioning.

Client, risk, and performance

  • Lead technical meetings, design reviews, value engineering, and HAZOP/HAZID activities.
  • Coordinate with clients, consultants, authorities, vendors, and technology providers; review vendor submissions and guarantees.
  • Identify technical risks, support commissioning and troubleshooting, and verify plant performance against approved design requirements.

Experience and expertise

  • Requires 15+ years of process engineering and design experience in water, wastewater, and industrial wastewater projects, including substantial process leadership or management.
  • Requires team leadership, multidisciplinary project-interface management, and oversight across project lifecycles.
  • Requires broad knowledge of water and wastewater treatment processes, process equipment, manual calculations, and process performance troubleshooting.
  • Requires experience from concept and proposal through FEED/basic and detailed engineering, vendor reviews, commissioning, and plant evaluation.
  • Hands-on process simulation experience with BioWin and recognized RO projection tools is required; other modeling software is an advantage.
  • Requires knowledge of process guarantees, operability, maintainability, energy optimization, lifecycle costing, safety, standards, and regulations.

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