Job Summary: We are seeking a customer-focused Applications Engineer to support water treatment systems and protect vital resources across diverse industries. Key Highlights: 1. You will help customers achieve their sustainability goals. 2. You will work independently in a dynamic environment. 3. You will be part of a team with a clear objective. **Join our team at Ecolab! ????** Ecolab helps customers save more than 161 billion gallons of water annually. We serve sectors ranging from food and beverage to mining and manufacturing, delivering innovative solutions that reduce, reuse, and recycle water while protecting systems and equipment. Our team combines deep technical expertise with smart technology to drive efficiency, sustainability, and performance. ECOLAB is seeking a **Lead Field Service Representative (Applications Engineer)** whose technical expertise and customer-centric mindset will help shape a more sustainable future. You will join a team with a clear objective supporting water treatment systems across diverse industries. You will work onsite, building trusted relationships with customers and delivering solutions that protect vital resources and improve operational performance. **How You Will Make a Difference:** Provide expert service and support for water treatment and filtration systems. Monitor chemical usage and system performance to ensure optimal operation. Troubleshoot equipment and treatment-related issues, focusing on cost-effective solutions. Perform preventive maintenance and repairs to maximize equipment uptime. Maintain accurate service documentation and communicate clearly with customers. Collaborate with internal teams to continuously improve service delivery. **What Makes This Role Special?** You will work independently in a dynamic environment, supported by a team that values your expertise. You will help customers achieve their sustainability goals while protecting their critical assets. **Position Details:** This position will be based in Cartagena. **Minimum Requirements:** Bachelor’s degree in Chemical Engineering, Environmental Engineering, Sanitary Engineering, or related disciplines, or in Pure Chemistry, with a minimum of 2 years’ experience in water treatment. A valid, unrestricted driver’s license is required for this position. Willingness and ability to travel among customers in Santa Marta, Cartagena, Barranquilla, and Montería. **Preferred Qualifications:** Sales experience. Proficiency in Microsoft Office Suite. **Our Commitment to an Inclusive and Belonging Culture** Ecolab is committed to treating all employees and applicants fairly and equally, and to promoting equal employment opportunity principles. We will recruit, hire, promote, transfer, and provide development opportunities based on individual qualifications and job performance, in all aspects related to employment, compensation, benefits, working conditions, and growth opportunities. Ecolab will not discriminate against any employee or applicant on the basis of race, religion, color, creed, national origin, citizenship status, sex, sexual orientation, gender identity and expression, genetic information, marital status, age, or disability.