Tiara Johnson
Deer Park,TX
Summary
Laboratory Technician supporting refinery product release through ASTM test methods, laboratory instrumentation, and quality checks on diesel, jet fuel, propane, butane, and gasoline streams. Reviews analytical results with Operations, Technical, and Quality teams to keep product specifications, safety standards, and regulatory requirements aligned. Cross-trains across gasoline lab work, including RON and MON testing, to keep quality data moving on time.
Overview
8
8
years of professional experience
Work History
Laboratory Tester
Pemex
02.2020 - Current
- Conduct quality control testing on refinery products including diesel, jet fuel, propane, butane, and other petroleum products, ensuring compliance with product specifications and regulatory requirements.
- Analyze process and finished product samples using ASTM test methods and laboratory instrumentation, supporting refinery operations and facilitating product release.
- Review, interpret, and communicate analytical results to Operations, Technical, and Quality teams, supporting process optimization, product quality, data accuracy and compliance through effective troubleshooting and documentation practices.
- Cross-trained to support gasoline laboratory operations.
- Perform quality testing on gasoline blend components and finished gasoline to ensure compliance with refinery and customer specifications.
- Conduct Research Octane Number (RON) and Motor Octane Number (MON) testing using both online and offline octane engine equipment.
- Collaborate with laboratory and operations personnel to report gasoline quality data promptly and support informed product release decisions.
Contract Laboratory Technician
Shell Olefins Laboratory
09.2019 - 02.2020
- Performed analytical testing on Light Olefins, Heavy Olefins, Aromatics, and hydrocarbon process streams to support product quality, process optimization, and specification compliance.
- Prepared, and analyzed laboratory samples while adhering to established testing procedures and safety protocols.
- Maintained accurate laboratory records, test results, and documentation in accordance with quality assurance standards.
- Collaborated with operations, quality, and technical teams to support production decisions and troubleshoot process deviations.
- (Contract Employee)
Laboratory Technician
MilliporeSigma
08.2018 - 09.2019
- Performed Polyacrylamide Gel Electrophoresis (PAGE) purification of synthesized DNA and RNA samples.
- Conducted post-synthesis RNA processing while maintaining strict quality standards.
- Served as a trained laboratory auditor supporting quality and compliance initiatives.
- Utilized LabVantage (CPP LIMS) for sample tracking, documentation, and data management.
Education
Bachelor of Science - Nutritional Sciences
Texas A&M University
College Station, TX12-2016
Associate of Applied Science - Biology
San Jacinto College
Pasadena, TX12-2013
Skills
- Quality assurance & testing
- Safety compliance
- Data analysis & reporting
- ASTM test methods
- Laboratory instrumentation
- Product specification compliance
- Sample analysis
- Quality control documentation
- Laboratory supervisor support
Timeline
Laboratory Tester
Pemex
02.2020 - Current
Contract Laboratory Technician
Shell Olefins Laboratory
09.2019 - 02.2020
Laboratory Technician
MilliporeSigma
08.2018 - 09.2019
Associate of Applied Science - Biology
San Jacinto College
Bachelor of Science - Nutritional Sciences
Texas A&M University