The Project Sales Manager - Water & Wastewater Treatment role leads project sales activities across the industrial and municipal sectors, with responsibility for revenue growth, profitability, and team performance. Based onsite in Bangkok, the position combines strategic sales leadership, customer relationship management, and cross-functional project coordination.
Responsibilities
Lead and manage the Project Sales team to achieve sales revenue, profit, and business growth targets
Develop and execute sales strategies to expand project business opportunities across the industrial and municipal sectors
Build and maintain strong relationships with key customers, consultants, contractors, and business partners
Oversee the preparation of technical and commercial proposals, quotations, tenders, and contract negotiations
Monitor the sales pipeline, project progress, and team performance to support successful project conversion and delivery
Coordinate closely with the Engineering, Procurement, and Operations teams to ensure customer requirements are met
Coach, develop, and motivate team members while driving continuous improvement in sales activities and customer satisfaction
Requirements
Bachelor’s degree in environmental engineering, chemical engineering, mechanical engineering, civil engineering, or a related field
5–10 years of sales or business development experience in water treatment, wastewater treatment, environmental engineering, engineering, procurement and construction (EPC), or industrial project sales
Strong knowledge of water treatment
Good command of business-level English
Own car and valid driving licence
About the company
A company in the environmental engineering industry providing solutions for industrial customers in Thailand. The company supports projects that address water and environmental management requirements.