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Job ID : 1609930 Date Updated : September 1st, 2026

PR/120328 | Project Sales Manager (Water & Wastewater Treatment)

Location Thailand, Bangkok
Job Type Permanent Full-time
Salary Negotiable, based on experience

Job Description

Position:   Project Sales Manager (Water & Wastewater Treatment)

Salary:       70,000 – 100,000THB +/- (Negotiable) 

Location:   Bangkok.

Our client is a specialized Water treatment Project.

 

Key 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 in industrial and municipal sectors.

  • Build and maintain strong relationships with key customers, consultants, contractors, and business partners.

  • Oversee the preparation of technical-commercial proposals, quotations, tenders, and contract negotiations.

  • Monitor sales pipeline, project progress, and team performance to ensure successful project conversion and delivery.

  • Coordinate closely with 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.

     

Qualifications

  • Bachelor’s degree in environmental engineering, Chemical Engineering, Mechanical Engineering, Civil Engineering, or related field. 

  • Minimum 5-10 years of sales or business development experience in water treatment, wastewater treatment, environmental engineering, EPC, or industrial project sales.

  • Strong knowledge of water treatment,

  • Good command of English (Business Level).

  • Have own car and driving license.

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General Requirements

Minimum Experience Level Over 6 years
Career Level Mid Career
Minimum English Level Business Level
Minimum Japanese Level None
Minimum Education Level Associate Degree/Diploma
Visa Status No permission to work in Japan required

Job Location

  • Thailand, Bangkok

Work Conditions

Job Type Permanent Full-time
Salary Negotiable, based on experience
Industry Business Consulting

Job Category