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Nasef Nugraha

@nasefnugraha

Geochemistry laboratory analyst at Star Energy who built Excel QC dashboards and a QR-code chemical safety data system.

Indonesia
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At Star Energy Geothermal Salak, I monitor steam purity, cooling tower chemistry, and wastewater treatment to support plant operations and compliance. I also developed a cooling tower maintenance innovation for PROPER and redesigned ammonia analysis frequency to reduce hazardous waste.

I built Excel dashboards with control charts that automatically check QC and LCS results against control limits, reducing manual review. I also built a QR-code MSDS system that gives laboratory staff instant bilingual access to chemical safety data.

Previously, at PT Chevron Pacific Indonesia, I supported the Minas Chemical Enhanced Oil Recovery project through tracer-program sampling and analysis, and managed crude oil, water, and environmental results in StarLIMS v10. At Chevron Geothermal Salak, I contributed to three PROPER Gold ratings and developed analytical methods in StarLIMS v10.

My work spans laboratory quality systems, plant and environmental chemistry, and instrument calibration and maintenance. I hold a Master of Disaster Management from Universitas Airlangga, with a research focus on community disaster resilience.

Experience

Work history, roles, and key accomplishments

SL
Current

Laboratory Analyst – Geochemistry & Reservoir Support

Star Energy Geothermal Salak, Ltd

Apr 2017 - Present (9 years 7 months)

Monitors steam purity and cooling tower chemistry, operates wastewater treatment plant, and supports ISO certifications and PROPER assessments. Developed Excel dashboards and QR-code MSDS system to improve QC and safety data access.

IN

Chemist – ICP Section

Intertek

Jun 2008 - Nov 2008 (5 months)

Ran ICP analysis of mineral samples and prepared client-ready results, ensuring data quality and analysis reports.

Education

Degrees, certifications, and relevant coursework

Universitas Airlangga logoUA

Universitas Airlangga

Master of Disaster Management, Disaster Management

2024 -

Master of Disaster Management with a research focus on community disaster resilience.

UR

Universitas Muhammadiyah Riau

Bachelor of Science, Chemistry

Bachelor of Science in Chemistry.

PB

Politeknik AKA Bogor

Diploma III, Analytical Chemistry

Diploma III in Analytical Chemistry.

Tech stack

Software and tools used professionally

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