Senior Process Engineer at PT Future Solar Tech Energy (LONGi Solar Indonesia) (2025-07 – Present)
LONGi Solar is a leading global manufacturer of high-efficiency and advanced technology for monocrystalline silicon wafers, solar cells, and modules, especially manufacturing HPBC (Hybrid Passivated Back Contact) photovoltaic cells in Indonesia.
- Managed and optimized end-to-end PV module manufacturing processes and leveraged critical product testing (EL, I-V, and safety tests) to ensure stable operations, consistent product quality, and high production reliability
- Optimized critical process parameters (temperature profiles, lamination pressure, cycle time, curing kinetics, and crosslinking degree) to improve yield, reduce defects, and enhance material performance
- Performed root cause analysis (RCA) for process deviations and product defects using PFMEA and CAPA methodologies, driving corrective and preventive actions
- Developed and standardized 46 SOPs, work instructions, and control documents, improving process consistency, operator compliance, and process control effectiveness as required by the Technology Department
- Delivered technical training and process guidance to the Production and Equipment Department to ensure effective implementation of process control strategies
Process Engineer at PT Hailiang Nova Material Indonesia (2024-01 – 2025-07)
PT Hailiang Nova Material Indonesia is a subsidiary of Zhejiang Hailiang Co., Ltd., one of the world's largest and leading non-ferrous metal processing companies, responsible for the construction and operation of the project of high-performance lithium copper foil.
- Supervised and optimized end-to-end copper foil manufacturing processes (copper dissolving, electroplating/coating, and slitting-packaging) in accordance with Control Plan to ensure stable operation and consistent product quality
- Controlled and improved foil thickness (5–8 µm) and mechanical properties (300–500 MPa tensile strength) through process parameter optimization and defect reduction initiatives
- Optimized surface treatment and coating performance by adjusting chemical additives and passivation processes to enhance surface quality and material performance
- Led 4–6 process technicians, providing technical direction for process adjustments, troubleshooting, and continuous improvement
Trainee at PT Hailiang Nova Material Indonesia (2023-10 – 2023-12)
I was a trainee of Copper Foil Training Program in China 2023 at Gansu Hailiang New Energy Materials Co., Ltd.
- Observed and learnt from experienced employees in 4 departments and 10 divisions, including Technology Department, Manufacturing Department, Quality Control Department, and Production and Operations Department
- Completed the exam each week with an average ranking among the top 10 out of 80 participants
Research Intern at National Chung Cheng University (2023-02 – 2023-05)
Funded internship program at the Department of Biomedical Sciences, College of Sciences, National Chung Cheng University, Taiwan (Taiwan Experience Education Program by the Taiwan Ministry of Education)
- Conducted two research projects on natural products for anti-amyloid treatment and cinnamic acid derivatives for antimicrobial applications in cosmeceuticals
- Developed O/W emulsions containing cinnamic acid derivatives using an ultrasonic probe sonicator and characterized particle size and size distribution using Dynamic Light Scattering (DLS)
- Performed protein expression and purification using FPLC and reverse-phase HPLC, and investigated fibril conversion
- Characterized formulations and evaluated biological activity using UV–Vis spectroscopy, ITF/ThT assays, and antibacterial microbroth dilution assays
- Presented research progress and findings to supervisors and laboratory researchers
Staff at HOILITS (2022-09 – 2023-01)
HOILITS is a product of innovative research in the health sector from the Institut Teknologi Sepuluh Nopember.
- Sourced and evaluated 10+ essential-oil suppliers across Indonesia
- Reviewed and compared GC-MS profiles of essential oils to assess their chemical composition, major constituents, and consistency for potential product applications
- Compiled proposals for funding support prototype output, logbook, progress report, and final report worth 25 million rupiahs
- Represented and promoted products at Grand City Mall Surabaya, achieving 17 product sales over a 6-day exhibition
Quality Control Intern at PT Kimia Farma Tbk Plant Banjaran (2021-07 – 2021-08)
PT Kimia Farma Tbk is the first and largest pharmaceutical industry company in Indonesia.
- Evaluated drugs and made inspection reports in their 5 stages of production, including raw materials, packaging materials, in-process and finished products, stability batches, and microbiological properties
- Analyzed the parameters of the raw material test of Cimetidine, they are visual inspection, dissolution, identity carried out by FTIR and UV-Vis spectrophotometer, melting range, loss on drying, sulfated ash, heavy metals, and drug content analysis carried out by UHPLC
- Suggested Procedure for Examination of Water Waste of Oil and Fat, and Retest Parameter for Ascorbic Acid and Paracetamol
Researcher and Laboratory Assistant at Chemistry Department ITS (2021-03 – 2021-12)
Worked in the Laboratory of Natural Products and Synthetic Chemistry ITS
- Conducted research in organic synthesis and natural products chemistry, focusing on the synthesis and characterization of aromatic compounds with potential fragrance, flavor, cosmeceutical, and medicinal applications
- Designed and optimized organic synthesis procedures, including reaction condition optimization, purification, and product isolation
- Performed structural and chemical characterization using FTIR, UV–Vis, H-NMR, C-NMR, UHPLC, GC-MS and fluorescence spectroscopy
- Assisted practical sessions and assessed 5 assignments for each of 100 practitioners
