# Manager Process — Larsen & Toubro

Canonical: https://jobxdubai.com/jobs/1846056-manager-process
Location: Riyadh, Saudi Arabia
Type: full_time · Level: senior
Monthly salary: AED 19,600 to 34,300 per month (estimated, not employer-stated) (UAE salaries are tax-free)
Posted: 2026-09-02
Apply: https://larsentoubrocareers.peoplestrong.com/job/detail/LNT_MP_1846056

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## Description

Responsible for reviewing, developing and approving the overall treatment process design, including:
- Review of Employer's Requirements, Technical Specifications, Contract documents and Design Basis.
- Establishment and review of the Process Design Basis (PDB).
- Development/review of:- Process Flow Diagrams (PFDs)
- Process & Instrumentation Diagrams (P&IDs)
- Mass Balance
- Water Balance
- Hydraulic Profile
- Chemical Balance
- Process calculations
- Equipment sizing calculations
- Tank sizing
- Pump sizing and duty calculations
- Membrane system calculations
- Chemical dosing calculations
- Sludge generation calculations
- Air requirement calculations
- Energy consumption calculations

- Define process design criteria for each treatment unit.
- Review process guarantees and performance requirements.
- Ensure process design is consistent with applicable standards and regulations.

Qualifications: Bachelor of Engineering (BE)

Experience: 13-20 years

## Requirements

Bachelor of Engineering (BE). 13-20 years of experience in process design for water treatment facilities, including review and development of process design basis, PFDs, P&IDs, mass balance, water balance, hydraulic profile, chemical balance, process calculations, equipment sizing (tank, pump, membrane systems), chemical dosing, sludge generation, air requirements, and energy consumption calculations; ability to define process design criteria for treatment units and verify compliance with standards and regulations.

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