Jobs at Ecolab

Develops industrial water-treatment business across Southeast Asia by managing the full B2B sales cycle, growing customer accounts, and identifying new opportunities. Provides technical solution selling for ion exchange resins and related purification technologies, supports product trials and troubleshooting, and coordinates with technical, laboratory, supply chain, and logistics teams. Serves petrochemical, refinery, power-generation, chemical, and other industrial customers through direct and channel relationships.

Supports project engineers with schedules, engineering drawings, technical documents, quotations, proposals, and reports for industrial water treatment systems. Reviews customer requirements against designs, updates documentation using AutoCAD, and participates in site visits involving installation, testing, and commissioning. The intern gains exposure to water treatment technologies, project coordination, troubleshooting, and collaboration with customers, suppliers, sales teams, and engineering staff.

Accounting and finance intern supporting sales operations through billing and payment controls, sales and billing performance analysis, month-end accrual validation, inventory management, and general administration. The role provides exposure to order-to-cash and procure-to-pay processes, revenue recognition, SAP, and invoice collection while coordinating with account managers and shared services teams.

Supports IT operations through laptop, mobile device, Microsoft 365, and collaboration tool support; device deployment and asset tracking; user onboarding; process improvement; and documentation. The intern develops troubleshooting, problem-solving, communication, and collaboration skills while supporting enterprise technology services in a global environment.

Manages customer relationships and service delivery for refinery and petrochemical clients while driving sales growth, pricing execution, profitability, and long-term account strategy. Leads customer business reviews, identifies value-improvement opportunities, negotiates deals, and delivers projects that reduce customer costs. Coaches sales and service teams, supports safety and technical training, and develops relationships with senior customer stakeholders.

Marketing and communications intern supporting internal and external communications across Southeast Asia. Responsibilities include writing newsletters and social media content, developing presentations and videos, managing digital channels, supporting town halls and engagement activities, coordinating with agencies, contributing to media relations and regional campaigns, and tracking communications metrics.

Supports marketing events, exhibitions, conferences, logistics, brand communications, content creation, digital channels, market research, competitor benchmarking, and administrative coordination. The intern collaborates with cross-functional teams to maintain consistent messaging while developing practical experience in regional marketing communications, event management, project coordination, and teamwork.

Supports plant production, maintenance, and engineering teams with continuous improvement, equipment performance monitoring, CAPEX evaluation, process optimization, troubleshooting, documentation, operator training, and quality investigations. The internship includes projects involving DI water systems, labeling machinery, and filling and packaging operations. The role provides practical experience in engineering, capital projects, operational improvement, and cross-functional collaboration.

Supports internship hiring, intern engagement, talent acquisition process digitalization, interview skills training, and onboarding materials. The role involves coordinating HR projects, prototyping a CRM tool for talent pooling, collaborating with stakeholders across Singapore and Southeast Asia, and improving recruitment, learning, employee experience, and onboarding processes through technology and automation.

Provides contractual technical service and troubleshooting support for company products, applications, and systems. Responsibilities include on-site field service, site surveys, audits, system start-ups, testing, installation support, replacement-parts coordination, subcontractor oversight, technical reporting, service documentation, customer satisfaction, and training account managers. The role also supports sales proposals, product reliability reviews, corrective improvements, and continuous education while traveling to Jurong Island as needed.

Manages and grows corporate microelectronics accounts across Southeast Asia. Responsibilities include developing sales pipelines, negotiating contracts and pricing, conducting business reviews, coordinating multi-country resources, identifying value and cross-selling opportunities, supporting innovation deployment, and collaborating with technical, R&D, marketing, finance, and legal teams. The role focuses on industrial water treatment solutions, customer relationship development, strategic account planning, and delivering measurable operational value.

Provides technical consulting and troubleshooting for water-treatment and process applications in semiconductor and electronics manufacturing. Conducts system assessments, audits, root cause analysis, optimization studies, trials, and customer training. Partners with sales, account teams, R&D, engineering, and marketing to develop solutions, quantify operational and sustainability value, support technology commercialization, and improve water efficiency, reliability, and production continuity across Southeast Asia.