- Projects management : Prevent facility failure with reduce failure occur by 70%, and Total Cost Saving by 50 thousand USD - Safety Supervisor : Reviewing the safety facility and safety procedures to avoid fatalities, until 2023 July, 0 (zero) fatality occur on 2016 until now -Operation and Maintenance Management : Lead the implementation of a comprehensive maintenance system, elaborate tracking and analyzing maintenance activity, with efficient work and planning, and reduce overtime work from 24,149 hour, amount 188,052 USD (2021) to (17,968 hour, amount cost 129,080 (2022) - Cost Engineer : Responsible on budget management processes, analyzing and optimizing maintenance, asset purchasing, and inventory costs; identified and eliminated redundant expenses, resulting in a 20% decrease in overall operational costs -Outsourcing Management : Supervise and Managed outsourcing company with 35 members (5 Korean and 30 Indonesian) - Soft service management (Driver management, waste management, antivirus and mail phishing program, and daily security check)

- Purchasing Material : Manage purchasing material and received quotes and recommending preferred vendors, cut down cost by minimum 10% -Maintenance Engineer : Carried out troubleshooting and maintenance by visually inspected and tested machinery and equipment, performing routine preventive maintenance and accomplish emergency work by 30% on complex mechanical equipment, particularly blast furnace auxiliary facilities (stock house, scrubber, and pulverize coal injection). - Cost Engineer : Performed a special cost-cutting effort from June to July 2016, saving 114,604 USD by lowering casting mold repair costs.

- Internship program, as facility operation and maintenance - Learned about the analysis of heat transfer process in a vacuum furnace. - Performed calculations according to standard procedures.