Water Treatment Technical Sales Engineer

About us

PT Mitrabara Adiperdana Tbk is a leading engineering company based in Jakarta, specialising in water and waste engineering solutions. We are committed to delivering innovative, sustainable, and cost-effective technologies that address Indonesia's critical infrastructure challenges. Our expertise spans water treatment, waste management, and environmental engineering, and we pride ourselves on combining technical excellence with customer-focused service delivery. We work with government agencies, industrial clients, and private enterprises to implement solutions that protect public health and the environment.

About the role

We are seeking a Water Treatment Technical Sales Engineer to join our dynamic team in Jakarta on a full-time basis. This is a strategic position that bridges our technical expertise with commercial objectives, requiring someone who can effectively communicate complex water treatment solutions to clients whilst maintaining strong technical credibility. You will be responsible for identifying market opportunities, presenting tailored solutions, and supporting the sales process from initial engagement through to contract closure. This role is essential to our growth strategy and your success will directly impact our market position in the water treatment sector.

Key responsibilities

• Identify and qualify potential clients in the water treatment sector, including industrial, municipal, and commercial segments

• Conduct technical presentations and demonstrations of water treatment systems and solutions to prospective clients

• Assess client requirements and develop customised water treatment proposals that align with their operational and budgetary needs

• Provide pre-sales technical support, including site evaluations, feasibility studies, and system design consultations

• Collaborate with the engineering and project teams to ensure proposed solutions are technically sound and commercially viable

• Prepare technical documentation, including system specifications, performance guarantees, and compliance certifications

• Build and maintain strong relationships with key clients, contractors, consultants, and industry partners

• Support the negotiation and closing of contracts, ensuring clear communication of technical terms and service expectations

• Gather market intelligence and client feedback to inform product development and business strategy

• Represent the company at industry events, trade shows, and technical forums

What we're looking for

• Bachelor's degree in Civil Engineering, Chemical Engineering, Environmental Engineering, or a related engineering discipline

• Minimum 3–5 years of experience in water treatment, wastewater engineering, or related technical field

• Demonstrated experience in a technical sales or pre-sales engineering role within the water, environmental, or infrastructure sectors

• Strong understanding of water treatment technologies, including filtration, chemical treatment, membrane systems, and process optimisation

• Proficiency in Indonesian and English languages (written and spoken); additional regional languages are advantageous

• Excellent communication and presentation skills, with the ability to translate technical concepts for diverse audiences

• Proven ability to develop and close sales opportunities whilst maintaining technical credibility with clients

• Knowledge of Indonesian water quality standards, regulations, and compliance requirements

• Strong analytical and problem-solving capabilities, with attention to detail in technical documentation

• Willingness to travel within Indonesia to visit client sites and attend industry events

• Professional certification or membership in a relevant engineering body is preferred

What we offer

We provide a competitive compensation package commensurate with experience and qualifications. As a full-time employee, you will benefit from a structured career development pathway within a growing organisation. We foster a collaborative working environment that values technical innovation and client success. Our team enjoys access to ongoing professional development opportunities, including technical training and industry certifications. We are committed to work-life balance and provide flexible arrangements where operational requirements permit. Additional benefits include health insurance coverage, performance-based incentives, and opportunities to contribute to meaningful infrastructure projects that positively impact communities across Indonesia.

Apply now

If you are a results-driven engineer with a passion for water treatment technology and the ability to build strong client relationships, we would like to hear from you. Please submit your CV, a cover letter detailing your relevant experience, and any professional certifications to the recruitment team at PT Mitrabara Adiperdana Tbk. We review applications on a rolling basis and look forward to connecting with talented professionals ready to make an impact in Indonesia's water engineering sector.