• Research, test, and evaluate newly developed products, processes, designs, and technologies related to water and wastewater treatment before implementation in company projects. • Collect and review technical documents, scientific papers, standards, and reference materials related to new treatment technologies and ongoing projects. • Plan, design, conduct, monitor, and evaluate laboratory and pilot-scale experiments involving physical, chemical, and biological treatment processes. • Perform water quality testing, jar testing, adsorption, coagulation, oxidation, and other treatment performance evaluations. • Operate and monitor biological wastewater treatment models and experimental systems. • Collect, analyze, and interpret experimental data; prepare technical reports and recommend practical treatment solutions. • Research and propose technical measures to solve operational issues encountered in water and wastewater treatment systems. • Review and evaluate technologies related to resource recovery, water reuse, by-product recycling, and greenhouse gas emission reduction. • Report project progress and ensure assigned tasks are completed within the required timeline. [Requirements] 1. Male/Female. Age 22-30 year-olds 2. Bachelor's degree in Chemical Engineering, Environmental Engineering, or related field 3. Fresh graduates are welcome. Experience in water and wastewater treatment, laboratory work, or research projects is an advantage. 4. • Ability to conduct laboratory and pilot-scale experiments. • Ability to collect, analyze and interpret technical data. • Good problem-solving and analytical skills. • Ability to prepare technical reports and presentations. • Ability to read and understand technical documents in English. • Good teamwork and communication skills. 5. • Good English communication and reading skills. • Good computer skills (Word, Excel, PowerPoint). • Good physical health. Company Benefits: 1. 13th month salary 2. Incentive 3. Salary review once 1 year (in January) 4. 12 days annual leave 5. Personal Accident Insurance (24/7) 6. Car pick up TEST & INTERVIEW by English - Salary: By Negotiation