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Lead Process And Mechanical Engineer

Hitachi Aqua-Tech Engineering Pte. Ltd.

D16 Bedok, Eastwood, Kew Drive, Upper East CoastPermanentS$5,500 – S$7,000/mo

Posted 7 Jul 2026

About this role

JOB SUMMARY: As a lead engineer responsible for process and mechanical design of “Seawater Treatment Systems” like Ultrafiltration, RO and Sulphate Removal Unit for offshore (Platforms / FPSO), and onshore oil & gas facilities. RESPONSIBILITIES: Design of RO, UF, and SRU (Sulphate Removal) packages for onshore, platform and offshore FPSO facilities. Develop PFDs, P&IDs, mass/heat balances, and hydraulic calculations. Preparation of Process datasheets for Equipment and Instruments. Preparation of Process Philosophies like Control, Startup/Shutdown, and Operation /Maintenance philosophies. Size membranes, skids, pumps (booster/HP), vessels, and piping for offshore facilities with considering weight/space constraints. Select materials for corrosive seawater service and chemical compatibility. Identifying all client's comments and communications, to ensure client's comments / requirements are implemented, as well as feedback to project management and commercial team, raise trends / potential change orders, as necessary. Review vendor documents and provide comments to ensure the vendor design is in line with the project requirements. Prepare technical specifications, datasheets, and MTOs per client/EPC standards (API, ASME, NORSOK, ISO) Review vendor packages (membrane suppliers, skid fabricators and etc.,) and co-ordinate HAZOP, Model Review, FAT, SAT and etc., Interface with piping, structural, E&I and layout teams for skids and module integration. Prepares training manuals and owner’s manuals for on-site training. Provide and prepare input to operating manual, pre-commissioning and commissioning manual. Contribute to weight / space optimization studies for skid and modules. Understand the project & client’s contractual requirements and scope of work. Clarify scope of work and supply to form the contract basis with client. REQUIREMENTS: Extensive knowledge and experience in overall water and wastewater treatment processes together with qualifications acquired through a tertiary degree in engineering, process, chemical, mechanical or environmental is preferred. Experience leading and managing teams in a water and wastewater or similar operational environment. Extensive experience in Industrial water and wastewater treatment operations and process management. At least 8 years of relevant experience in industrial water/wastewater treatment. Experience in FEED, EPC Engineering and Packages, preferably in Water, FPSO and Oil & Gas Industry. Experience in the Oil & Gas / Offshore industry is a plus. Experience in the design of complex skid-based industrial water treatment systems. Willing to travel. Able to multi-task and able to work in a fast-paced environment.

What they're looking for

Equipment SizingCommunicationDesignHAZOP

About Hitachi Aqua-Tech Engineering Pte. Ltd.

Industry: Manufacturing

Frequently asked questions

What does a Lead Process And Mechanical Engineer at Hitachi Aqua-Tech Engineering Pte. Ltd. do?

JOB SUMMARY: As a lead engineer responsible for process and mechanical design of “Seawater Treatment Systems” like Ultrafiltration, RO and Sulphate Removal Unit for offshore (Platforms / FPSO), and onshore oil & gas facilities. RESPONSIBILITIES: Design of RO, UF, and SRU (Sulphate Removal) packages …

What skills does this Lead Process And Mechanical Engineer role need?

Key skills for this role include Equipment Sizing, Communication, Design, HAZOP.

How much does a Lead Process And Mechanical Engineer at Hitachi Aqua-Tech Engineering Pte. Ltd. pay?

This role lists a salary of S$5,500 – S$7,000 per month.

Is this Lead Process And Mechanical Engineer role remote, hybrid, or on-site?

The listing is based in D16 Bedok, Eastwood, Kew Drive, Upper East Coast. Check the posting for remote or hybrid options.

How do I apply for this Lead Process And Mechanical Engineer role?

You can apply directly on Hitachi Aqua-Tech Engineering Pte. Ltd.'s careers page. ApplyLah can tailor your résumé and cover letter to this exact role in seconds first.