Senior Process Engineer – Water & Wastewater Treatment

Insight 360 Consultants L.L.C-FZ; Sharjah; On-site; AED 112,000 - 167,000; Full time

Job summary

Insight 360 Consultants L.L.C-FZ in Sharjah, UAE, seeks a Senior Process Engineer with extensive experience in the design and engineering of water and wastewater treatment, desalination, and related facilities. The candidate will lead process design, calculations, and documentation for EPC and packaged plants.

You will coordinate with multidisciplinary teams, review vendor offers, support HAZOP and commissioning, and ensure compliance with international standards.

Qualifications

• Bachelor's degree in chemical engineering or closely related field.
• Minimum 8–10 years of direct water and wastewater treatment engineering experience.
• Strong knowledge of RO design, membrane systems, filtration, chemical dosing, and hydraulics.
• Familiarity with AWWA, ASTM, ASME and international water treatment standards.
• Proficiency in AutoCAD, MS Excel, and engineering calculation tools.
• Experience with membrane design software such as WAVE or ROSA is an advantage.
• Strong technical reporting and English communication skills.

Responsibilities

• Process Design & Engineering: Develop PFDs, P&IDs, process descriptions and design basis documents.
• Perform process calculations, hydraulic calculations, mass balances, and equipment sizing.
• Design and select water and wastewater treatment processes including RO, UF, MMF and filtration.
• Prepare equipment datasheets and technical specifications for pumps, vessels, filters, blowers, mixers and dosing systems.
• Prepare hydraulic profiles, pump head calculations, and control philosophies.
• Develop process control narratives, cause-and-effect matrices and operating sequences.
• Project Engineering & Coordination: Review vendor offers, prepare TBE, and coordinate with multi-disciplinary teams.
• Review 3D models and equipment layouts for process compliance and accessibility; support commissioning and testing.

Skills

RO design

Membrane systems

Filtration

Chemical dosing

Hydraulic calculations

AutoCAD

MS Excel

Engineering calculations

English communication

Education

Bachelor's degree in chemical engineering

Tools

AutoCAD

MS Excel

Engineering calculation tools

WAVE

ROSA

Job description

Position: Senior Process Engineer – Water & Wastewater Treatment

Department: Process Engineering

Location: Sharjah, UAE

Salary: AED 10,000 – 15,000

Experience: Minimum 8–10 years of relevant experience

Employment: Full-Time

Job Summary

Our client is seeking an experienced Senior Process Engineer with strong technical expertise

in the design and engineering of industrial and municipal water treatment, desalination and

wastewater treatment plants.

The successful candidate must be capable of independently developing process designs,

performing engineering calculations, preparing technical documentation and coordinating

with multidisciplinary engineering teams for EPC and packaged treatment plant projects.

Key Responsibilities

Process Design & Engineering

• Develop and review Process Flow Diagrams (PFDs), Piping & Instrumentation Diagrams (P&IDs), process descriptions, and design basis documents.
• Perform process calculations, hydraulic calculations, mass balances, and equipment sizing.
• Design and select water and wastewater treatment processes, including:
  • Reverse Osmosis (RO), Ultrafiltration (UF), and Multimedia Filtration (MMF).
  • Activated Carbon Filtration, Greensand Filtration, and chemical pretreatment.
  • Clarification, coagulation, flocculation, sludge treatment.
  • Sewage Treatment Plants (STP), MBR, MBBR, SBR, and biological treatment systems.
  • Chemical dosing, neutralization, disinfection, and CIP systems.
• Prepare equipment datasheets and technical specifications for pumps, vessels, filters, blowers, mixers, and chemical dosing systems.
• Prepare hydraulic profiles, pump head calculations, and control philosophies.
• Develop process control narratives, cause-and-effect matrices, and operating sequences.

Project Engineering & Coordination

• Review vendor technical offers, drawings, calculations, and equipment selections.
• Prepare technical bid evaluations (TBE) and vendor document review comments.
• Coordinate with mechanical, electrical, instrumentation, automation and project engineering teams.
• Review 3D models and equipment layouts for process compliance and accessibility.
• Respond to client technical comments, RFIs, and engineering clarification requests.
• Support HAZOP, design reviews, FAT, pre-commissioning, commissioning, and performance testing.

Desired Candidate Profile

• Bachelor’s degree in chemical engineering, Environmental Engineering, or a closely related discipline.
• Minimum 8–10 years of direct experience in water and wastewater treatment engineering.
• Strong knowledge of RO design, membrane systems, filtration, chemical dosing, and hydraulic calculations.
• Familiarity with relevant AWWA, ASTM, ASME and international water treatment standards.
• Proficiency in AutoCAD, MS Excel, and engineering calculation tools.
• Experience with membrane design software such as WAVE, ROSA or equivalent is an advantage.
• Strong technical reporting, engineering documentation and English communication skills.

Candidate Profile

We are looking for a technically strong engineer who can independently take a water treatment project from design basis through detailed engineering and support commissioning, rather than someone experienced only in plant operation or maintenance. Preference will be given to candidates with EPC contractor, water treatment OEM or engineering consultancy experience.