At PPSDM Migas, I cross-checked P&ID documentation across three process units and validated transmitter data for commissioning reports. My work achieved zero-defect sign-off across commissioned loops.
At PT Symphos Electric, I logged and audited data for 30 or more power transformers daily under ISO 17025 procedures, maintaining zero non-conformity across tested batches. I also recorded and cross-verified dielectric insulation analysis results.
I developed an Excel VBA system that generated individualized HR Assessment Center reports in Word and PDF, with a separate PowerPoint output module. For my Solar Tracker Thesis, I prepared a 48,000-row sensor dataset for XGBoost training and tuned the model to achieve under 5-degree error in tilt prediction.
