Ismail Kresna Y. currently holds the position of Instrument and Control at Freeport Indonesia since September 2023. Prior to this role, Ismail served as an Instrumentation Specialist at PT Polytama Propindo from October 2020 to September 2023, focusing on DCS and PLC modifications for Polypropylene Polymerization and Pelletizing Units. Ismail also completed multiple internships at PT Pertamina (Persero) at Refinery Unit VI Balongan, which included projects on safety instrumented systems and safety integrity level calculations. Ismail earned a Bachelor of Applied Science in Instrument Engineering from PEM Akamigas, completing the program in 2020, and previously attended SMKN 4 Semarang from 2013 to 2016.