Share this job with Family & Friends

Job Description

Apply for the Process Engineer role at ENGIE Al Jubail, Saudi Arabia. Lead SWRO desalination process optimization, WPA compliance, HSE excellence, and performance monitoring at Jubail 3B desalination plant.

Process Engineer – SWRO Desalination Plant

Location: Jubail, Saudi Arabia
Company: ENGIE Al Jubail for Operation & Maintenance Company
Job Type: Permanent | Full-Time
Experience Level: Skilled (5–10 Years)
Posting Date: December 23, 2025
Requisition ID: 57389

Job Overview

ENGIE Saudi Arabia is seeking an experienced Process Engineer to support and optimize the Seawater Reverse Osmosis (SWRO) operations at the Jubail 3B Desalination Plant. This critical role focuses on process optimization, HSE compliance, WPA contractual performance, and KPI monitoring while supporting Operations, Maintenance, and Chemistry teams.

The Process Engineer will play a key role in ensuring plant reliability, efficiency, water quality compliance, and accurate performance reporting through PASS (Plant Availability & Settlement System).

Key Responsibilities

Process Operations & Performance Monitoring

Monitor and analyze KPIs including TA, CA, recovery, flux, SPC (kWh/m³), SDI15, turbidity, pH, and chemical dosing
Perform daily and weekly trend analysis to identify performance deviations
Lead root-cause analysis for plant trips, pretreatment issues, and membrane fouling
Plan, execute, and evaluate CIP activities and post-CIP performance
Optimize pretreatment systems (coagulation, filtration, cartridge filters)
Perform RO membrane normalization and early fouling detection

WPA Compliance & Contractual Performance

Ensure full compliance with Water Purchase Agreement (WPA) requirements
Monitor water quality, SDI, turbidity, and contractual parameters
Participate in outage classification (Planned, Forced, NPE, FM/WTTCO)
Support monthly performance reporting to AJIWC/SWPC
Identify risks related to Liquidated Damages (LDs) and advise management

Invoicing & PASS Management

Prepare and validate monthly process inputs in PASS
Verify availability, outages, deemed production, and supporting evidence
Ensure PASS submissions strictly follow WPA formulas and timelines
Coordinate with Finance, Operations, and Maintenance teams

Health, Safety & Environment (HSE)

Ensure compliance with ENGIE HSE policies and Life-Saving Rules
Participate in HAZID, HAZOP, and HSE audits
Ensure safe chemical handling, storage, and spill response
Maintain environmental discharge and regulatory compliance
Support incident investigations and promote a strong safety culture

Process Engineering & Technical Support

Review and update PFDs, P&IDs, mass balances, and operating limits
Provide technical support during shutdowns, maintenance, and upgrades
Support budgeting and cost optimization for chemicals and consumables
Interface with vendors for membranes, chemicals, analyzers, pumps, and ERDs
Support commissioning and start-up of RO and pretreatment systems

Chemistry & Environmental Compliance

Maintain stable pretreatment, RO, and post-treatment chemistry
Optimize chemical dosing to reduce costs while ensuring compliance
Lead internal, environmental, and customer audits
Improve membrane life, water quality, and chemical efficiency

Reporting, Documentation & SOPs

Prepare monthly performance and compliance reports
Maintain logs, water quality records, environmental reports, and trend files
Document RCA, PASS evidence, and operational events
Develop, revise, and update SOPs and work instructions

Team Collaboration & Leadership

Provide guidance and training to operators, chemists, and junior engineers
Lead performance discussions when delegated by the O&M Manager
Represent the plant in technical, vendor, and client meetings

Qualifications & Experience

Education

Bachelor’s Degree in Chemical Engineering, Environmental Engineering, Mechanical Engineering, or Water Treatment Technology

Experience

5–10 years of experience in SWRO desalination process engineering
Experience in RO plant start-up, commissioning, or troubleshooting preferred
Knowledge of WPA or similar contractual frameworks is an advantage

Key Skills

Strong analytical skills in RO performance and water chemistry
Excellent understanding of PFDs, P&IDs, and mass balance calculations
Strong HSE awareness with proven safety performance
Excellent reporting, documentation, and data analysis skills
Fluent in English (Arabic is an advantage)

Process Engineer – SWRO Desalination Plant | ENGIE Jubail Saudi Arabia