Profile Details

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USD 100 /hr

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Hire Yusuf Samaila Usman U.

Nigeria

USD 100 /hr

Senior Analytical Chemist in Oil and Gas and ISO 17025 Consultant | Scientific Writer & Data Analyst”)

Profile Summary

I am an experienced Analytical Chemist and Laboratory Scientist with over 14 years of expertise in advanced petrochemical, lubricant, fuel, water, and environmental testing. I previously served as a Lead Laboratory Scientist with Saudi Aramco, where I managed ISO/IEC 17025:2017 and ISO 9001:2015 quality-management systems, led instrument validation, supervised complex analytical workflows, and supported plant reliability through data-driven diagnostics and trend analysis. My technical experience covers chromatography, spectroscopy, elemental analysis, lubricant condition monitoring, crude oil characterization, produced-water testing, failure investigations, corrosion studies, and method development. I have also trained and supervised laboratory personnel, developed SOPs, and ensured full regulatory and quality-system compliance. Beyond laboratory operations, I have contributed to several research and consultancy projects, including field chemical application studies, lubricant quality monitoring for rotating equipment startup in oil and gas production operations. I hold a BSc in Chemistry and an MSc in Instrumental Analytical Sciences from Robert Gordon University, Aberdeen, Scotland. My background enables me to support scientific writing, data analysis, method validation, technical documentation, and quality-system consulting across chemistry, environmental sciences, public health, and industrial research. I am available for remote consulting projects involving analytical chemistry, lab method development, data interpretation, technical writing, QA/QC systems and ISO 17025 accreditation support.

Subject Matter Expertise

• ☆ Inorganic Chemistry
• ☆ Physical Chemistry
• ☆ Analytical Chemistry
• ☆ Separation & Purification
• ☆ Spectroscopy
• ☆ Atomic Absorption Spectroscopy
• ☆ Atomic Emission Spectroscopy
• ☆ UV Spectroscopy
• ☆ IR Spectroscopy
• ☆ Spectrophotometry
• ☆ Gas Chromatography
• ☆ Particle Size Distribution
• ☆ Petrochemistry
• ☆ Quality Assurance & Quality Control (QA/QC)

Services

• Writing

Writing Technical Writing

Work Experience

Lead Lab Scientist

Saudi Aramco (Saudi Arabia)

April 2011 - Present

Lead Lab Scientist

Saudi Aramco

April 2011 - September 2025

Operations Supervisor

Sahara Group Ltd

March 2005 - September 2008

Education

MSc Instrumental Analytical Science

Robert Gordon University

September 2008 - December 2009

MSc. Instrumental Analytical Science (Life Sciences)

Robert Gordon University

September 2008 - December 2009

Certifications

• ISO 17025 Internal Auditor

  Saudi Aramco

  December 2019 - Present